Drag each label to the correct location on the image.
Here's one way to follow the scientific method. Place the missing steps in the correct position in the process.
The hypothesis is true. The hypothesis is false.
Make
observations.
↓
Construct a
hypothesis.
Test the hypothesis
with an investigation.
Explain the
results.
Ask questions.
Communicate
the results.
Analyze the data.
Repeat the
process.
Answers
The correct order of the steps in the scientific method is as follows:
Ask questions.Make observations.Construct a hypothesis.Test the hypothesis with an investigation.Analyze the data.Explain the results.The hypothesis is trueCommunicate the results.The hypothesis is falseRepeat the process.What does each step mean?Ask questions: The first step in the scientific method is to ask a question about something you observe in the world around you. For example, you might ask "Why do leaves change color in the fall?"
Make observations: The next step is to make observations about the thing you are interested in. In this case, you might observe the leaves on a tree and notice that they are changing color.
Construct a hypothesis: A hypothesis is a possible explanation for something you observe. In this case, you might hypothesize that leaves change color in the fall because the days are getting shorter.
Test the hypothesis with an investigation: The next step is to test your hypothesis by doing an investigation. In this case, you might set up an experiment to see if the amount of sunlight affects the color of leaves.
Analyze the data: Once you have done your investigation, you need to analyze the data to see if it supports your hypothesis. In this case, you might look at the color of the leaves on different trees at different times of the year.
Explain the results: Once you have analyzed the data, you need to explain the results. In this case, you might explain that the leaves change color in the fall because the days are getting shorter.
Communicate the results: The final step is to communicate the results of your investigation to others. In this case, you might write a report about your findings or give a presentation to your class.
Repeat the process: The scientific method is an iterative process, which means that you can repeat it as many times as you need to. In this case, you might repeat your experiment to see if you get the same results. You might also modify your experiment to see if you can get different results.
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Related Questions
2 of 4 examples as to why humans are the most dangerous creatures in the ocean
Answers
Answer
We kill animals and we are creul :)
Explanation:
Your welcome
for the reaction 2a b ⇌ 2c 3d, the equilibrium expression is: keq = [a]2[b][c]2[d]3 keq = [2][1][2][3] keq = [2c][3d][2a][b] keq = [c]2[d]3[a]2[b] none of the above
Answers
Keq = [C]2[D]3 / [A]2[B]
Therefore, the correct answer is: keq = [c]2[d]3[a]2[b]
I need three examples of objects with high density and three with low density!!
Answers
Answer:
For example, a suitcase jam-packed with clothes and souvenirs has a high density, while the same suitcase containing two pairs of underwear has low density. Size-wise, both suitcases look the same, but their density depends on the relationship between their mass and volume. Mass is the amount of matter in an object.
\(*CreativeGirl*\)
HIGH density: lead, water on the bottom of the ocean, concrete
LOW density: fresh water, oil, wood
Explanation:
Hope it helps!
\(*JoyousLass*\)
Please help me please
Answers
I am only in 6th grade so all I have to say is good luck and I wish you the best on that quiz.
if [h3o+] = 2.65 × 10-4 m, what is [ohâ¯]?
Answers
So, the concentration of [OH⁻] is approximately 3.77 × 10⁻¹¹ M. To find [oh¯],
we can use the equation for the ion product constant of water (Kw): Kw = [H3O+][OH¯], At 25°C, Kw is equal to 1.0 × 10^-14. So, if [H3O+] = 2.65 × 10^-4 M,
we can rearrange the equation to solve for [OH¯]: [OH¯] = Kw/[H3O+]
[OH¯] = 1.0 × 10^-14/2.65 × 10^-4
[OH¯] = 3.77 × 10^-11 M
Therefore, [OH¯] is 3.77 × 10^-11 M.
To find the concentration of [OH⁻] when given the concentration of [H₃O⁺], we can use the ion product constant of water (Kw) formula. The Kw formula is: Kw = [H₃O⁺] × [OH⁻]
Kw is always equal to 1.0 × 10⁻¹⁴ at 25°C. We are given [H₃O⁺] = 2.65 × 10⁻⁴ M. Now, we can solve for [OH⁻]: 1.0 × 10⁻¹⁴ = (2.65 × 10⁻⁴) × [OH⁻]
To find [OH⁻], divide both sides by (2.65 × 10⁻⁴): [OH⁻] = (1.0 × 10⁻¹⁴) / (2.65 × 10⁻⁴), [OH⁻] ≈ 3.77 × 10⁻¹¹ M
So, the concentration of [OH⁻] is approximately 3.77 × 10⁻¹¹ M.
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Which chemical formula corresponds to this structural formula? h6c6h6h2 c14h6 c6h6 c2h6o
Answers
C₂H₆O is referred to the chemical formula corresponds to this structural formula and is denoted as option D.
What is Chemical formula?This contains information about the chemical proportion of atoms present in a molecule.
In this scenario, there are two carbon atoms, six hydrogen atoms and one oxygen atom which can be written as C₂H₆O. This is therefore the most appropriate choice in this scenario.
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Answer: D.) C6H14
Explanation: i hope this helps (this is for another question you might have tho) :)
which of the statements regarding beta particles are true? beta particles have a mass number of 0. beta-particle formation is accompanied by the conversion of a proton into a neutron. beta particles have an atomic number of 1. beta-particle formation is accompanied by the conversion of a neutron into a proton.
Answers
The statement that is true regarding beta particles is D. "Beta-particle formation is accompanied by the conversion of a neutron into a proton."
Beta particles are high-energy electrons or positrons that are emitted during certain types of radioactive decay processes. Beta decay occurs when an unstable nucleus undergoes a transformation in order to reach a more stable state. In beta-minus decay, a neutron in the nucleus is converted into a proton, releasing a beta particle (high-energy electron) and an antineutrino. The conversion of a neutron into a proton increases the atomic number of the nucleus by one.
The statement that beta particles have a mass number of 0 is incorrect. Beta particles do have mass, although they are much less massive compared to protons or neutrons. Similarly, the statement that beta particles have an atomic number of 1 is incorrect. The atomic number refers to the number of protons in an atom, and beta particles are not atoms themselves. Beta particles are high-energy particles emitted from the nucleus during beta decay.
Therefore, the only true statement regarding beta particles is that their formation is accompanied by the conversion of a neutron into a proton, which leads to an increase in the atomic number of the nucleus. Therefore, Option D is correct.
which of the statements regarding beta particles are true?
A. beta particles have a mass number of 0.
B. beta-particle formation is accompanied by the conversion of a proton into a neutron.
C. beta particles have an atomic number of 1.
D. beta-particle formation is accompanied by the conversion of a neutron into a proton.
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2. Many calculations in chemistry will involve certain symbols, such as the symbol triangle or delta
What does this symbol stand for or mean?
A. "The total"
B. "The change in"
C. "The unit"
D. "The formula"
Answers
B. "The change in"
I saw that symbol a lot in chemistry and physics so I immediately recognized it.
B. The change in
4. The octet rule is a rule that governs bond formation. It states that -
a. elements can only gain 8 electrons
b. all elements lose 8 electrons
c.all elements will gain, lose or share electrons in order to obtain 8
electrons in their outer energy level
d. all elements share 8 electrons
Answers
15.6.
A reaction is proposed to occur in two steps. Step 1: Fast \( \quad \mathrm{NO}_{2} \mathrm{Cl}(g) \rightarrow \mathrm{NO}_{2}(g)+\mathrm{Cl}(g) \) Step 2: \( \quad \) Slow \( \quad \mathrm{NO}_{2} \m
Answers
In the proposed reaction, NO2Cl undergoes a fast reaction to form NO2 and Cl, followed by a slower step whose details are not provided.
In the proposed reaction, there are two steps involved. In the first step, the reactant NO2Cl (nitryl chloride) undergoes a fast reaction to produce NO2 (nitrogen dioxide) and Cl (chlorine) as products.
This step is characterized as fast because it occurs rapidly compared to the second step. The reaction is represented as NO2Cl(g) → NO2(g) + Cl(g).
In the second step, which is considered slow, the product NO2 from the first step reacts further, possibly with another reactant or in a subsequent reaction.
The details of this slow step are not provided in the question, so the specific reaction pathway or reaction equation cannot be determined without additional information.
Overall, the proposed reaction involves the initial formation of NO2 and Cl through the fast step, followed by a slower step that involves the further reaction or transformation of NO2.
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3. The equation for the decomposition of sodium hydrogencarbonate is :
2 NaHCO3 (s) → Na2CO3 (s) + H2O(l) + CO2(8)
If 21 g of sodium hydrogencarbonate were decomposed, calculate
(a) the mass of the residue formed.
(b) the volume of carbon dioxide evolved measured at r.t.p.
Answers
a. 13.25 g
b. 3 L
Further explanationGiven
21 g of Sodium hydrogencarbonate
Reaction
2 NaHCO3 (s) → Na2CO3 (s) + H2O(l) + CO2(g)
Required
mass of residue
volume of CO2
Solution
mol NaHCO₃ (MW=84 g/mol) :
\(\tt mol=\dfrac{21}{84}=0.25\)
a. the residue = Na₂CO₃
From the equation, mol ratio NaHCO₃ : Na₂CO₃ = 2 : 1, so mol Na₂CO₃ :
\(\tt \dfrac{1}{2}\times 0.25=0.125\)
mass Na₂CO₃ (MW=106 g/mol) :
\(\tt mass=0.125\times 106=13.25~g\)
b. From equation, mol CO₂ = 0.5 x mol NaHCO₃ = 0.125
RTP= 25 C, 1 atm ⇒ 1 mol =24 L
So volume CO₂ :
\(\tt 0.125\times 24=3~L\)
what are two places that producers can get energy?
Answers
Answer:
The Food Chain: The answer has to do with trophic levels. As you probably know, the organisms at the base of the food chain are photosynthetic; plants on land and phytoplankton (algae) in the oceans. These organisms are called the producers, and they get their energy directly from sunlight and inorganic nutrients.
Explanation:
Brainliest?
Temperature depends on the average kinetic energy of the particles in a sample. How does this help explain why a plasma-based light does not have a high temperature? No particles in the plasma have high kinetic energy. The fastest particles have the greatest mass. Most particles in the plasma are heavy, slow, and very low density. The fastest particles transfer most of their energy through collisions.
Answers
Answer:
C: Most particles in the plasma are heavy, slow, and very low density.
Explanation:
i'm smart like dat
Answer:
C is correct
Explanation:
formular for solubility
Answers
Answer:
= konstanta produk kelarutan
= kation dalam larutan berair
= anion dalam larutan berair
= konsentrasi relatif a dan b
DARI WEB
Divide the mass of the compound by the mass of the solvent and then multiply by 100 g to calculate the solubility in g/100g . Solubility of NaNO3=21.9g or NaNO3 x 100 g/ 25 g =87.6. Calculate the molar mass of the dissolved compound as the sum of mass of all atoms in the molecule.
Answer:
K_{sp} = [A^+]^a [B^-]^b
K_{sp} = solubility product constant
A^+ = cation in an aquious solution
B^- = anion in an aqueous solution
a, b = relative concentrations of a and b
Explanation:
Describe a place or a situation in which you could find water as a solid, a liquid, and a gas all at the same time.
Answers
Answer:
yes
Explanation:
Yes. Take, for example, an ice cube in an open or closed container, that is in the process of melting at room temperature. There is solid water, liquid water, and water vapour (gas) in the air.
There are three recognized states of water: solid, liquid, and gas. Snow, rain, and clouds are all composed of water in some way. A snowflake is a collection of many ice crystals, a cloud is made up of microscopic water droplets and ice crystals, and rain is just liquid water.
What are states of matter ?There are four states of matter are observable in everyday life that are solid, liquid, gas, and plasma. Solids have a definite volume and shape while liquid does not have definite shape and volume.
The states of matter are the three distinct physical forms which matter can take in most environment.
Water exists in all the three states, solid, liquid and gas. It changes according to the temperature.
Thus, There are three recognized states of water: solid, liquid, and gas. Snow, rain, and clouds are all composed of water in some way.
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* Write ionic equation, including state symbols for the reaction of
Silver nitrate solution + sodium chloride solution = silver chloride + sodium nitrate solution.
please hurry
Answers
Answer:
Ag+ (aq) + Cl- (aq) --> AgCl (s)
Explanation:
Calculate the volume of 5250 kilograms of wood if the density of wood is 750 kg/m³.
Answers
Answer:
The correct answer is "7 metre cube OR 7m^3"
Explanation:
Using the formula :
Density=(Mass)/(Volume)
Here ; mass=5250 kg
density = 750 kg/m^3
so putting the values in above formula we get volume as 7m^3
What is the difference between an exothermic and endothermic reaction, in terms of energy?.
Answers
An exothermic reaction releases energy in the form of heat, light or sound, whereas an endothermic reaction absorbs energy from its surroundings. In other words, exothermic reactions release heat and endothermic reactions absorb heat. Exothermic reactions are characterized by a negative change in enthalpy, while endothermic reactions have a positive change in enthalpy. An example of an exothermic reaction is the combustion of a fuel, while an example of an endothermic reaction is the process of melting ice.
The difference between exothermic and endothermic reactions lies in the energy changes. In an exothermic reaction, energy is released to the surroundings, typically in the form of heat. Conversely, in an endothermic reaction, energy is absorbed from the surroundings, usually as heat.Exothermic and endothermic are two terms used to describe the direction of heat flow in a chemical or physical process.
Exothermic processes release heat into the surrounding environment, while endothermic processes absorb heat from the environment.An exothermic reaction is a chemical reaction that releases heat into the surrounding environment, typically in the form of light or heat energy. This type of reaction is characterized by a negative enthalpy change, meaning that the products of the reaction have less energy than the reactants. Examples of exothermic reactions include combustion reactions, such as burning of fuels like wood, coal or gas, and oxidation of metals, such as rusting of iron.
In contrast, an endothermic reaction is a chemical reaction that absorbs heat from the surrounding environment, typically causing the reaction mixture to feel colder. This type of reaction is characterized by a positive enthalpy change, meaning that the products of the reaction have more energy than the reactants. Examples of endothermic reactions include the melting of ice, the evaporation of water, and the reaction between citric acid and baking soda in a cold pack.Similarly, physical processes can also be exothermic or endothermic. For example, the process of condensation of water vapor into liquid water releases heat, making it an exothermic process. On the other hand, the process of melting of ice absorbs heat, making it an endothermic process.
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Other than nuclear power there are products that we get from nuclear reactions that have some benefits to us in society
Answers
Other than nuclear power there are products that we get from nuclear reactions that have some benefits to us in society
How many grams of lithium are in 3.50 moles of lithium
Answers
which statement best explains why chlorine is added to drinking water? A. Chlorine cures infections caused by bacteria or other microorganisms B. Chlorine protects people teeth against cavities C. Chlorine prepares the body to fight future infections D. Chlorine kills most pathogens in water
Answers
Answer:
to protect peoples teeth against cavities
Explanation:
i just know
Answer: its D
Explanation: A.P.E.X.
A sample of silica gel (SiO₂) contains 7.52 x 10^22
molecules of SiO2. How many moles of SiO2
molecules does this sample contain?
Answers
The number of moles in 7.52 × 10²² molecules of silicon dioxide is 0.125 moles.
How to calculate number of molecules?The number of moles in a substance can be calculated by dividing the number of molecules by Avogadro's number as follows:
no of moles = no of molecules ÷ 6.02 × 10²³
According to this question, a sample of silica gel (SiO₂) contains 7.52 x 10²² molecules of silica. The number of moles can be calculated as follows:
no of moles = 7.52 × 10²² ÷ 6.02 × 10²³
no of moles = 1.249 × 10-¹
no of moles = 0.125moles
Therefore, 0.125 moles are present in 7.52 × 10²² molecules of silica.
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CH3COOC5H11 Draw this structure it is an ester
Answers
The structure of Ester:
\(CH_3CH_2CH_2CH_2CH_2-C-O-CH_2CH_3\)
I
\(CH_3\)
An alcohol and a carboxylic acid react to form an ester, a type of chemical molecule. Esters are often used in a variety of common items including plastics, flavorings and fragrances. They often have a pleasant fruity or floral scent, which is what gives many fruits their distinctive aroma.
An alkyl group (R) is attached to one oxygen atom and a carbonyl group (C = O) is attached to another oxygen atom to form an ester structure. Alkyl or aryl groups can form alkyl groups.
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Andrew and Sullivan were arguing over bond lengths. Andrew said that F-CI has a shorter bond
length than F-H because F and Cl have greater electronegativity and therefore form a shorter
bond. Sullivan disagrees, stating that electronegativity has nothing to do with bond length.
Who's right? Why?
Answers
The ability of an atom to draw in the shared pair of electrons is measured by its electronegativity. For calculating electronegativity, people frequently utilize the Pauling scale.
What is electronegativity?When an electron is added to a neutral atom in a gaseous state to create a negative ion, the energy of the atom changes (in units of kJ/mole). In essence, it conveys the atom's propensity to pick up an electron.
In the modern periodic table's 17th group, fluorine is located above chlorine. Despite having seven electrons in its valence shell, it is smaller than an atom of chlorine.
The electron density rises as a result. Fluorine has a higher electronegativity because of its high electron density, which can draw in a shared pair of electrons.
Therefore, The ability of an atom to draw in the shared pair of electrons is measured by its electronegativity. For calculating electronegativity, people frequently utilize the Pauling scale.
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(a) according to the equation for the reaction, if the number of moles of reactants is halved, how does this affect the number of moles of h2o(l) produced in the reaction?.
Answers
According to the mole ratio from the equation for the reaction, if the number of moles of reactants is halved, the number of moles of H₂O produced will be halved.
What is the equation of the reaction?The equation of the reaction of hydrochloric acid and sodium hydroxide to produce sodium chloride and water is given below as follows:
HCl (aq) + NaOH (aq) ----> NaCl (aq) + H2O (l)
The mole ratio of the reactants and the products is 1 : 1
This means that 1 mole of each of the reactants, HCl and NaOH will react together to produce 1 mole of the products, water, and sodium chloride.
Considering the given equation;
If the number of moles of reactants is halved, how does this affect the number of moles of H₂O (l) produced in the reaction:
based on the mole ratio of the reaction, if the moles of the reactants are halved, it also means that the moles of products formed will be halved.
Hence, halving the mole of the reactants in the reaction of hydrochloric acid and sodium hydroxide to produce sodium chloride and water will result in half the amount of products to be formed.
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Complete question:
HCl(aq)+NaOH(aq)→NaCl(aq)+H2O(l)
A student was given the task of titrating a 20.mL sample of 0.10MHCl(aq) with 0.10MNaOH(aq). The HCl(aq) was placed in an Erlenmeyer flask. An equation for the reaction that occurs during the titration is given above. (a) According to the equation for the reaction, if the amount of the reactants is halved, how does this affect the amount of H2O(l) produced in the reaction?
Write three sentences that provide evidence supporting your claim about how the illustration and student observations support the cell theory?
Answers
Answer:
The cell theory claims these three components:
1. cell is the smallest functional unit of life: It can be observed under the microscope that cells have various type of molecules and organelles present and have adifferent functional role in the cell which explains that the cell is the smallest unit of life as its molecules or organelles can not carry the life process on their own.
2. All organisms are made up of cells: From bacteria and archaea to human and other life forms are made up of a single cell or organization of cells in a specific pattern it also can be observed by the microscopic of blood or other tissue or cell of an organism.
3. Arise from pre-existing cell: The cells are can be studied under a microscope during cell division where we can observe that new cells come from the pre existing cell by the cell division.
The net movement of molecules from a region where their initial concentration is higher to a region where their initial concentration is lower is called.
Answers
Answer:
It is Diffusion
A 5g piece of aluminum foil (c=0.897) at 100°C is dropped into a 25g container of water (c=4.184) at 20°C. What is the final temperature of the aluminum? show work
Answers
Answer:
23.6°C
Explanation:
use delta h method
Abel was running a fever of 107 degrees Fahrenheit, what was her temperature in degrees
Celsius?
Answers
Explanation:
we know the formula to convert farenheit to Celsius
=(F-32)(5/9)
=(107-32)(5/9)
(5/9)=375/9= 41.6 degrees Celsius
... A standard backpack is approximately 30cm x 30cm x 40cm. Suppose
you find a hoard of pure gold while treasure hunting in the wilderness. How
much mass would your backpack hold if you filled it with the gold? An
average student has a mass of 70 kg. How do these values compare?
Answers
Answer:
1) The mass that the backpack can hold when filled with gold is 694.8 kg of gold
2) The mass of the backpack is approximately 9.93 times the mass of an average student
Explanation:
1) The given information are;
The dimension of the backpack = 30 cm × 30 cm × 40 cm
The mass of an average student = 70 kg
The volume of the backpack = 30 cm × 30 cm × 40 cm = 36000 cm³
The density of gold = 19.3 g/cm³
Therefor, the mass of the gold is given by the relation;
Density = Mass/Volume
Mass = Density × Volume
The mass of the pure gold = 19.3 g/cm³ × 36000 cm³ = 694,800 grams
1,000 grams = 1 kilogram = 1 kg
694,800 grams = 694,800 grams/(1,000 grams)×1 kg = 694.8 kg
The mass that the backpack can hold when filled with gold = 694.8 kg
2) Given that the mass of an average student = 70 kg, we have;
The mass of the bag of gold is 694.8 kg/(70 kg) or approximately 9.93 times heavier than the average student
The mass of the backpack is approximately 9.93 times the mass of an average student.