An unmanned spacecraft sent from Earth to explore objects in space
Answers
An unmanned spacecraft is a type of spacecraft that is designed and programmed to operate without human crew on board.
These spacecraft are sent from Earth to explore various objects in space, such as planets, moons, asteroids, comets, and other celestial bodies. They are used to gather scientific data, images, and other important information that can help us learn more about the universe.
The unmanned spacecraft is equipped with a variety of instruments and sensors that allow it to study the object it is exploring. These instruments can include cameras, spectrometers, radar systems, and other scientific instruments. The spacecraft is controlled remotely from Earth, and the data it collects is transmitted back to Earth for analysis.
One of the main advantages of using unmanned spacecraft is that they can operate in environments that are too dangerous or inhospitable for humans. For example, unmanned spacecraft can explore the harsh and extreme environments of other planets or moons, where humans cannot survive.
Additionally, unmanned spacecraft are often less expensive to launch and operate than crewed missions, making them a more cost-effective option for space exploration.
In summary, unmanned spacecraft are an essential tool for exploring the vast expanse of space. They allow us to gather important data and information about our universe, and they are a key component of modern space exploration.
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Related Questions
Question 21
Which equation is a balanced chemical equation?
A
2NaOH + CaBr2 + Ca(OH)2 + NaBr
B
NO + Cl2 → NOCI
с
CaCO3 + CaO + 2CO2
D
2AlCl3 + 3Mg + 3MgCl2 + 2A|
D
B
Ос
ОА
Answers
Answer:
the equation is not correctly written but the answer is option D
The balanced equation among the given options is D, where each of the elements are equal in number on both side.
What is balanced reaction?A balanced chemical equation for a reaction represents perfect stoichiometric ratios of each reactants and products. Each elements have to be equal in number on both sides.
The number of elements or groups can be balanced each side by multiplying with suitable integers. The chemical equation in D is balanced where, Al, Cl and Mg are balanced on both side.
The equation in A, is not balanced where, number of Na and Br are not balanced. In equation B Cl is two in reactant side and one in product side. Thus, not balanced. Similarly in option C, oxygen and calcium are not balanced. Therefore, option D is correct.
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Which lists the elements in order from least conductive to most conductive?
nitrogen (N), antimony (Sb), bismuth (Bi)
nitrogen (N), bismuth (Bi), antimony (Sb)
antimony (Sb), nitrogen (N), bismuth (Bi)
bismuth (Bi), antimony (Sb), nitrogen (N)
Answers
Answer:
A
nitrogen (N), antimony (Sb), bismuth (Bi)
Explanation:
Answer:
A. nitrogen (N), antimony (Sb), bismuth (Bi)
Explanation:
What is the solubility of CaCl2 at 20°C
Answers
Answer:1,01
Explanation:
1.40 L solution was made by mixing 69.3 mL of dioxane, Which has a density of 1.03 g/mL, and 1.3 L of Toluene, Which has a density of 0.87 g/mL. Calculate the volume percent of dioxane in the solution. Be sure your answer has the right number of significant digits.? %(v/v)
Answers
To calculate the volume percent of dioxane we will apply the following formula:
\(Volumepercent=\frac{\text{Volume of solute}}{Volume\text{ of solution}}\times100\)In this case, the solute will be dioxane, and the volume will be 69.3 mL.
To calculate the volume of solution we will sum both volumes:
Volume of solution = Volume of dioxane + Volume of Toluene
Volume of solution = 69.3 mL + 1300 mL
Volume of solution = 1369.3 mL
\(Volumepercent=\frac{\text{6}9.3\text{ mL}}{1369.3\text{ mL}}\times100\text{ = 5.1}\)We are given all the data with a significant digit, therefore we must report the result also with a significant digit. So the answer will be.
The volume percent of dioxane in the solution is 5.1 %(v/v)
Circle the letter of each sentence that is true about what can occur in a chemical change.
a. Compounds may be broken down into elements.
b. Elements may combine to form compounds.
c. Compounds may change from one state to another.
d. Compounds may change into other compounds.
Answers
Answer:
b
Explanation:
The statement that is true about what can occur in a chemical change is b. Elements may combine to form compounds.
What is chemical change?A chemical change can be described as the change which do take place when the substance's composition is been altered which could bring about the formation of another substance.
It should be noted that in the chimical change there is uaually a formation of a new product after one or more substance must have reacted together which implies that in this kind of change there is usuall a new substance that will be formed in the process.
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Question 10 (5 points) (02.04 LO Which of the following most likely causes the particles in a chemical reaction to slow down? (5 points) Ralsing the thermal energy of the particles DU a Ob Increasing the rate of the reaction OC Lowering the temperature Od Adding heat to the reaction
Answers
Answer:
C Lowering the temperature
Explanation:
_____ is a weak acid present in commercial vinegar that can be used to create a buffer solution. Phosphoric acid Acetic acid Hydrochloric acid Formic acid
Answers
Acetic acid is a weak acid present in commercial vinegar that can be used to create a buffer solution.
A buffer solution is a solution that can resist changes in pH when small amounts of acid or base are added to it. A buffer solution is made up of a weak acid and its corresponding conjugate base (or a weak base and its corresponding conjugate acid). Acetic acid is a weak acid that is present in commercial vinegar, and it can be used to create a buffer solution when combined with a salt of its conjugate base (such as sodium acetate).
Acetic acid has a pKa value of approximately 4.76, which means that it is a weak acid that does not dissociate completely in water. This property allows acetic acid to act as a buffer in a solution, helping to maintain a relatively constant pH even when small amounts of acid or base are added.
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What is not a resource of the ocean?
Answers
I think its a natrual gas , i herd it from sombody.
if 3.51 g of cuno3 is dissolved in water to make a 0.300 m solution, what is the volume of the solution in milliliters? volume:
Answers
The volume of the solution is 62.3 mL.
To determine the volume of the solution, we can use the formula:
moles = concentration x volume
First, we need to calculate the number of moles of CuNO3 in the solution:
makefile
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moles = mass / molar mass
moles = 3.51 g / (CuNO3 molar mass: 187.56 g/mol)
moles = 0.0187 mol
Next, we can rearrange the formula above to solve for volume:
volume = moles / concentration
concentration = 0.300 mol/L (since the solution is 0.300 M)
volume = 0.0187 mol / 0.300 mol/L
volume = 0.0623 L = 62.3 mL
Therefore, the volume of solution is 62.3 mL.
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Answer: The volume of the solution is 93.3mL.
Explanation:
1) MASS/MOLAR MASS
3.51 g/125.5 g/mol = 0.028 mol
2) # of moles/ volume
0.028/0.300 = 0.0933 = 93.3 mL
Which two scenarios illustrate the relationship between pressure and volume as described by Boyle’s law?
1. The pressure in a closed bottle decreases when the bottle is squeezed.
2. The volume of an underwater bubble increases as it rises and the pressure decreases.
3. The pressure increases in an inflated plastic bag when the bag is stepped on.
4. When air is blown into a balloon, the pressure and volume both increase.
Answers
Answer:
2) The volume of an underwater bubble increases as it rises and the pressure decreases
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write a paragraph explaining the difference between things that have matter and things that don't have matter.
Answers
There is matter all around you. All matter is made up of very small particles, including atoms and molecules.
Thus, The objects you see and touch on a daily basis were constructed from those atoms. Anything that has mass and occupies space (has volume) is considered matter.
The quantity of matter in an item is its mass. A statue made of lead (Pb) or another little object with a lot of mass may be present.
You might have a massive object with a small mass, like a helium-filled balloon. Additionally, you ought to be aware of the distinction between mass and weight.
Thus, There is matter all around you. All matter is made up of very small particles, including atoms and molecules.
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write the ksp expression for the sparingly soluble compound aluminum hydroxide, al(oh)3. ksp = if either the numerator or denominator is 1, please enter 1.
Answers
The Ksp expression for the sparingly soluble compound aluminum hydroxide, Al(OH)₃, is: Ksp = [Al³⁺][OH⁻]³.
The solubility product constant, Ksp, is a measure of the degree to which a sparingly soluble ionic compound dissolves in water. Aluminum hydroxide, Al(OH)₃, is a sparingly soluble compound that dissociates into one aluminum ion, Al³⁺, and three hydroxide ions, OH⁻.
The Ksp expression for Al(OH)₃ is obtained by taking the product of the concentrations of the dissociated ions, each raised to the power of their stoichiometric coefficient in the balanced chemical equation. Thus, the Ksp expression for Al(OH)₃ is Ksp = [Al³⁺][OH⁻]³.
The value of Ksp represents the equilibrium constant for the dissolution of Al(OH)₃ in water, and its magnitude provides information about the compound's solubility behavior.
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Aqueous solutions of magnesium nitrate and sodium phosphate are mixed together, forming solid magnesium phosphate and aqueous sodium nitrate.
Answers
A balanced chemical formula of magnesium nitrate and sodium phosphate are mixed together, forming solid magnesium phosphate and aqueous sodium nitrate is shown below.
3Mg(NO₃)₂(aq) + 2Na₃(PO₄)(aq) → Mg₃(PO₄)₂(s) + 6NaNO₃(aq)
Aqueous solutions of magnesium nitrate and sodium phosphate are mixed together to form a solid magnesium phosphate and aqueous solution of sodium nitrate, so the chemical formulas for each compound are given below.
Magnesium nitrate - Mg(NO₃)₂
Sodium Phosphate - Na₃(PO₄)
Magnesium Phosphate - Mg₃(PO₄)₂
Sodium Nitrate - NaNO₃
Therefore, the balanced chemical formula is shown below.
3Mg(NO₃)₂(aq) + 2Na₃(PO₄)(aq) → Mg₃(PO₄)₂(s) + 6NaNO₃(aq)
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Which of these is a limitation
of using this simulation to
study and understand the
behavior of light through a
convex lens?
A. The simulation shows the relative
positioning to the rays.
B. It allows us to visualize the behavior of
light rays that we normally cannot see.
C. The measurements of the rays will
change based on the size of the screen.
Answers
The limitation of using this simulation to study and understand the behavior of light through a convex lens is:
C. The measurements of the rays will change based on the size of the screen.The limitations of the simulationThe simulation may not accurately represent the real-world behavior of light through a convex lens because the measurements of the rays can be influenced by the size of the screen or display used for the simulation.
The scaling and proportions on the screen may affect the accuracy of the simulation, potentially leading to discrepancies in the behavior of the light rays compared to their actual behavior in physical experiments or observations.
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Chromosomes _____. (Choose all that apply)
1.) Are tightly coiled bundles of DNA
2.) Carry many genes
3.) Are found inside the nucleus of eukaryote
4.) Can be used to diagnose genetic disorders
5.) Outnumber genes in a cell
Answers
Answer:
1.) Are tightly coiled bundles of DNA
2.) Carry many genes
3.) Are found inside the nucleus of eukaryote
4.) Can be used to diagnose genetic disorders
Explanation:
A chromosome is a thread-like structure made up of DNA. The chromosomes are made of DNA which are tightly coiled around protein.
Chromosomes carry hundreds and thousands of genes. The number of genes in a cell outnumbers the number of chromosomes.
In eukaryotic cells, all the chromosomes are found inside the nucleus of eukaryote.
The chromosomes and DNA can be examined so as to diagnose genetic disorders.
Which statement correctly describes metallic bonds?
O A. They form when certain atoms lose electrons and other atoms gain electrons.
O B.
They involve an attraction between anions and cations.
O C. They always involve both a metal and a nonmetal.
O D.
They can only form between atoms of the same element.
O E.
They form because electrons can move freely between atoms.
Answers
Answer:
e
Explanation:
a line-angle formula shows a ring with six vertices and alternating single and double bonds. a cooh group is attached to the first vertex. a br atom is attached to the third (clockwise) vertex. spell out the full name of the compound.
Answers
The compound is named 2,3-dibromo-2,4-hexadienedioic acid, which consists of a six-membered ring with alternating single and double bonds.
The line-angle formula describes a six-membered ring with alternating single and double bonds. To name the compound, we need to consider the functional groups and substituents present.
The carboxylic acid group, -COOH, is attached to the first vertex of the ring. This group is named as "hexanedioic acid" because it contains six carbon atoms in a linear chain. The prefix "hexa-" indicates the presence of six carbons, and the suffix "-dioic acid" denotes the presence of two carboxylic acid groups.
The bromine atom, represented by "Br," is attached to the third vertex in a clockwise direction. Since there are two bromine atoms present, the prefix "di-" is used. Thus, the compound is named "dibromo-hexanedioic acid."
To specify the positions of the bromine atoms, we start numbering the ring from the vertex where the carboxylic acid group is attached, which is the first vertex. Moving clockwise, the second vertex has a double bond, the third vertex has a bromine atom, and the fourth vertex has a double bond. Therefore, the compound is named as "2,3-dibromo-2,4-hexadienedioic acid." The numbers indicate the positions of the substituents in the ring.
In summary, the compound is named 2,3-dibromo-2,4-hexadienedioic acid, which represents a six-membered ring with alternating single and double bonds, a carboxylic acid group attached to the first vertex, and a bromine atom attached to the third vertex in a clockwise direction.
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A 23. 5-liter balloon holding 3. 0 moles of carbon dioxide. There was a leak and now there is 1 mole of carbon dioxide, what is the new volume of the balloon?
Answers
The new volume of the balloon after the leak, with 1 mole of carbon dioxide, is approximately 7.05 liters. The ideal gas law equation, PV = nRT, relates the pressure (P), volume (V), number of moles (n), gas constant (R), and temperature (T) of a gas.
In this case, we can assume constant temperature and pressure. Initially, the balloon had a volume of 23.5 liters and contained 3.0 moles of carbon dioxide. We can use the equation to find the initial number of moles:
\(\[ P_1 \cdot V_1 = n_1 \cdot R \cdot T \]\)
Similarly, after the leak, the balloon contains 1 mole of carbon dioxide. We can find the new volume using the equation:
\(\[ P_2 \cdot V_2 = n_2 \cdot R \cdot T \]\)
Since the pressure and temperature are constant, we can rewrite the equations as:
\(\[ \frac{{V_1}}{{n_1}} = \frac{{V_2}}{{n_2}} \]\)
Plugging in the values, we have:
\(\[ \frac{{23.5 \text{ L}}}{{3.0 \text{ mol}}} = \frac{{V_2}}{{1.0 \text{ mol}}} \]\)
Solving for \(\(V_2\)\), we find \(\(V_2 \approx 7.05 \text{ L}\)\), which is the new volume of the balloon after the leak.
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Which statement best describes how a salmon's tail fin helps it to survive?
A. It helps the salmon breathe in the water.
B. It helps the salmon keep warm in the water.
O c. It helps the salmon move through the water.
OD. It helps the salmon sense predators in the water.
Answers
Answer:
c
Explanation:
all fins are for movement
A 5.00 cm^3 sample of gold has a mass of 96.5 g. Calculate the density of gold.
Answers
Answer:
\(\boxed {\boxed {\sf 19.3 \ g/cm^3}}\)
Explanation:
We are asked to calculate the density of gold. The density of a substance is its mass per unit volume. It is calculated using the following formula.
\(\rho= \frac{m}{v}\)
The mass of the sample is 96.5 grams. The volume of the sample is 5.00 cubic centimeters.
m= 96.5 g v= 5.00 cm³Substitute the values into the formula.
\(\rho= \frac{ 96.5 \ g}{5.00 \ cm^3}\)
Divide.
\(\rho= 19.3 \ g/cm^3\)
The density of gold is 19.3 grams per cubic centimeter.
The force between electrically charged particles depends on the magnitude of each charge, their separation distance, and what else?.
Answers
When charged matter is placed in an electromagnetic field, it experiences a force due to its physical attribute of electric charge.To understand more about the force between electrically charge particles, we should grasp the idea of Coulomb's Law. It explains that the interaction between charged items is a non-contact force that operates over some distance.On the other hand, magnetic forces could also be generated by moving electric charges. It is categorized as a force due to the motion of the charged particles.
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kathy used stoichiometry calculations to determine how much product that she should get from an experiment in her chemistry lab. what do the numbers from this calculation represent?
Answers
In stoichiometry calculations, the numbers represent the ratios of reactants and products involved in a chemical reaction. These ratios are based on the coefficients of the balanced chemical equation for the reaction.
In stoichiometry calculations, the numbers represent the ratios of reactants and products involved in a chemical reaction. These ratios are based on the coefficients of the balanced chemical equation for the reaction. The coefficients in a balanced chemical equation represent the relative amounts of the substances involved in the reaction. They indicate the number of molecules, moles, or any other unit of measurement that participate in the reaction. When performing stoichiometry calculations, these coefficients are used to determine the quantities of reactants consumed or products produced in a given reaction.
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PLEASE HELPPPP...If you have a mass of 70 kg and you are standing on a platform 8 m above the ground, what is your gravitational potential energy?
Answers
Answer: 5491.72
Explanation:
A house is 57.0ft ieng and 38.0ft wide and has B.0-ft-high celings. What is the volume of the interioe of the house in cubic meters and cubic centimeters? m3
Answers
Volume of the interior of the house in cubic meters = 487.1 m³
Volume of the interior of the house in cubic centimeters = 4.871 × 10^8 cm³
Given the dimensions of the house as 57.0ft length, 38.0ft width and 8.0ft high ceilings.
The volume of the house can be found by using the formula for the volume of a rectangular solid as:
V = lwh
where
V is the volume,
l is the length,
w is the width,
h is the height of the house
Given,
l = 57.0ft
w = 38.0ft
h = 8.0ft
Now, substituting these values in the formula for the volume of the house, we get;
V = lwh
= 57.0 ft × 38.0 ft × 8.0 ft
= 17248.0 cubic feet
We know that 1 cubic meter = 35.3147 cubic feet
Volume of house in cubic meters
V = 17248.0/35.3147 m³ = 487.1 m³
Thus, the volume of the interior of the house in cubic meters is 487.1 m³.
The volume of the interior of the house in cubic centimeters can be found by using the fact that 1 m³ = 10^6 cubic centimeters
Volume of the house in cubic centimeters = 487.1 × 10³ × 10^6= 4.871 × 10^8 cm³
Thus, the volume of the interior of the house in cubic centimeters is 4.871 × 10^8 cm³.
Volume of the interior of the house in cubic meters = 487.1 m³
Volume of the interior of the house in cubic centimeters = 4.871 × 10^8 cm³
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Which is the BEST question to find out whether an object has the right property for you to carry it in your backpack?
What does the object sound like?
What does the object taste like?
What is the color of the object?
What is the size of the object?
Answers
Answer: what is the size of the object
Explanation: then again though, i wouldn't carry something in my backpack that didn't taste good...
How many Faradays of electricity are carried by 1.505×10^23 electronsk
Answers
Mole of electron required by \(1.505 *10^{23}\) mole is \(2.5* 10 ^{-1}\)
Faraday law expressed how the change that is been being produced by a current at an electrode-electrolyte interface is related and proportional to the quantity of electricity that is been used. There is one mole of electron required for 1 Faraday of electricity.Avogadro constant is \(6.02*10^{23}\)Mole of electron can be calculated by dividing the number of electron by avogadro's constant.=\(\frac{1.505*10^{23} }{6.02*10^{23} }\)
= \(2.5* 10^{-1} Faraday of electricity\)
Therefore, it requires \(2.5*10^{-1}\) Faraday of electricity for the \(1.505 * 10^{23} mole.\)
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2 of 3
5. The mesosphere is found at 50 to 85 km above Earth's surface. (5 points)
Answers
Answer:
Mesosphere. This layer extends from around 31 miles (50 km) above the Earth's surface to 53 miles (85 km). The gases, including the oxygen molecules, continue to become denser as one descends. As such, temperatures increase as one descends rising to about 5°F (-15°C) near the bottom of this layer.
Explanation:
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What is the correct name for NO2?
Answers
The correct name for NO₂ is nitrogen dioxide.
NO₂ is a chemical compound composed of one nitrogen atom and two oxygen atoms. It is a reddish-brown gas with a pungent odor and is a major component of air pollution.
Nitrogen dioxide is an important intermediate in the formation of smog and acid rain in the atmosphere. It is also used as a reagent in the production of nitric acid, which is used in the production of fertilizers and explosives. Exposure to high concentrations of NO₂ can cause respiratory problems and contribute to the development of asthma and other lung diseases.
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Rank the following compounds in order of increasing acidity, putting the least acidic first. CH3COOH I FCH2COOH II CICH2COOH III BrCH2COOH IV I LE Iv LE III I LE III LE IV LE II ii LE III LE IV LE I II LE II LE III LE I
Answers
The compounds ranked in order of increasing acidity, from least acidic to most acidic,the correct ranking is:
II (FCH2COOH) < IV (BrCH2COOH) < I (CH3COOH) III (CICH2COOH)
II < IV < I < III
How to rank compounds by acidity?The compounds in order of increasing acidity, from least acidic to most acidic, are as follows:
II (FCH2COOH) < IV (BrCH2COOH) < I (CH3COOH) < III (CICH2COOH)
In compound II, the presence of a fluorine atom (F) reduces the acidity compared to the other compounds. In compound IV, the bromine atom (Br) is slightly more electron-withdrawing than hydrogen (H), making it slightly more acidic than compound II.
Compound I, acetic acid (CH3COOH), is a stronger acid due to the presence of the carboxyl group (-COOH). Compound III, chloroacetic acid (CICH2COOH), is the most acidic as the electronegative chlorine atom (Cl) increases the acidity further compared to the other compounds. Therefore, the correct ranking of increasing acidity is II < IV < I < III.
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The ranking of the compounds in increasing acidity is CH3COOH < ClCH2COOH < BrCH2COOH < FCH2COOH. This order is dictated by the electronegativity of the atoms bonded to the acidic hydrogen. The more electronegative the atom, the more acidic the compound.
Explanation:To rank the given compounds in order of increasing acidity, we primarily evaluate the atoms bonded to the acidic hydrogen. This is due to the fact that acidity is determined by how well a compound can donate a proton and how stable the resulting ion is after this donation. In these compounds, the acidic hydrogen is bonded to a carbon which is next to either fluorine (FCH2COOH), chlorine (ClCH2COOH), bromine (BrCH2COOH), or nothing extra (CH3COOH).
To predict the acidity, we must understand electronegativity: the ability of an atom to attract electrons. The halogens (F, Cl, Br) are highly electronegative, with fluorine being the most electronegative. A more electronegative atom draws electron density away from the hydrogen, stabilizing the resulting ion and making it easier for the compound to donate a proton.
Therefore, the order of increasing acidity, from least to most acidic, is: CH3COOH < ClCH2COOH < BrCH2COOH < FCH2COOH. This is because the carbon in CH3COOH is not directly bonded to a halogen, which makes it less acidic than the others. Among the halogens, Cl is less electronegative than Br, which is less electronegative than F, resulting in ClCH2COOH being less acidic than BrCH2COOH and FCH2COOH.
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Help plzzz I’ll give brainliest
Answers
Answer:
last one
Explanation:
Answer:
full moon
hope this helps