In what way is the Moon like the Earth?
The Moon has volcanoes.
The Moon has an atmosphere.
The Moon has oceans and seas.
The Moon is a solid, rocky body.
PLS ANSWER RIGHT ILL GIVE BRAINLIST :)

The shells are present outside the nucleus of an atom, where the electrons are said to be present. The atom of Mg²⁺ has a full outer shell. Thus, option C is correct.

An atom is the unit of the molecule that comprises sub-atomic particles, electrons, protons, and neutrons. The electron is present in the shells of the atom and can be completely filled by forming the bonds.

Magnesium has atomic number 12 and its electronic configuration is given as 2, 8, 2. When it gives or donates 2 electrons it becomes positively charged and now has completely filled outer shell.

Therefore, option C. Mg²⁺ has a full outer shell.

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Answer:

will be 9.7 Liters

Explanation:

A salesforce solution to accountability concerns is to ensure that salespeople are aware of the ethical and regulatory framework for their markets, including cultural and worldwide market variances.

Sales managers have the right to discipline salesmen. As a result, they are often able to sway salespeople without resorting to coercion, threats, or promises.

One of a sales manager's most crucial responsibilities is inspiring the team. He needs to organise his team so that they work together as a single unit to achieve a common goal. He is responsible for making sure the team members get along well and don't fight.

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The percentage purity of common salt, given that the mass of dried precipitate of Silver chloride formed was 2.11 g is 39.1%

First, we shall obtain the mole of the 2.11 g of Silver chloride, AgCl. Details below:

Mole of AgCl= mass / molar mass

= 2.11 / 143.5

= 0.0147 mole

Next, we shall obtain the mole of the pure common salt, NaCl. Details below:

NaCl + AgNO₃ → AgCl + NaNO₃

From the balanced equation above,

1 mole of AgCl was obtained from 1 mole NaCl

Therefore,

0.0147 mole of AgCl will also be obtain from 0.0147 mole NaCl

Finally, we shall obtain the percentage purity of the common salt, NaCl. This is shown below:

Percentage purity of salt = (mole pure / Mole of sample) × 100

= (0.0147 / 0.0376) × 100

= 39.1%

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The word "symptom" refers to a specific manifestation or indication of a condition, disease, or disorder that is experienced or observed by an individual.

Symptoms are subjective or objective changes in the body's normal functioning that may be recognized as abnormal, uncomfortable, or problematic. Symptoms can manifest in various ways depending on the nature of the underlying condition. They can be physical, such as pain, rash, cough, fever, or fatigue, indicating an illness or injury affecting the body. Symptoms can also be psychological, such as anxiety, depression, or confusion, reflecting disturbances in mental health.

Symptoms serve as important clues for medical professionals to identify and diagnose diseases or disorders. They provide valuable information about the nature, severity, and progression of an illness, helping healthcare providers formulate appropriate treatment plans. Additionally, symptoms may also be important for individuals to self-assess their own health status and seek appropriate medical attention.

It is essential to note that symptoms alone may not provide a definitive diagnosis, as they can overlap across different conditions. Further evaluation, including medical tests and examinations, is often necessary to confirm a diagnosis and determine the appropriate course of action.

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Answer:

gases at room temperature.

Explanation:

The final temperature of the water is: T_final = 45.0°C

We can use the formula for the specific heat capacity of the water to solve this problem:

q = mcΔT

First, we can calculate the initial energy of the water:

q = mcΔT

q = (10.0 g) (4.184 J/g°C) (25.0°C)

q = 1,046 J

Next, we can calculate the final temperature after absorbing 840 J:

q = mcΔT

840 J = (10.0 g) (4.184 J/g°C) (ΔT)

ΔT = 20.0°C

Therefore, the final temperature of the water is:

T_final = T_initial + ΔT

T_final = 25.0°C + 20.0°C

T_final = 45.0°C

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Answer:

B. Because the planet travels slowly when it is far away from the sun

Consumers are organisms which depend on the producers or autotrophs for their food and nutrition.

Consumers are also known as heterotrophs, and they feed on the producers (autotrophs or self-feeders or plants) and herbivores (animals that eat plants) for food and energy. They don't produce their own food.

There are four types of consumers:

1) Primary – Herbivores are known as primary consumers and their source of food is plants or the first trophic level of the food chain. Example, Rabbits, Butterflies, Zooplanktons, etc.

2) Secondary – these consumers eat both plants and herbivores and are therefore also known as omnivores. Example, Ants, Crabs, Rats, Humans, etc.

3) Tertiary – these consumers eat primary and secondary consumers. Thus, they can be omnivores as well as carnivores. Example, Hawks, Snakes, Lions, etc.

4) Quaternary – these consumers prey on the tertiary consumers. Example, Polar bear, Alligator, etc.

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Answer:

Language

Explanation:

this is very obvious not to be mean

Answer:

is it c

Explanation:

Answer:

-It is considered the modern atomic model.

-It describes the probable locations of the electrons

Explanation:

edge 2020

The correct answer is:

The electron cloud model is another name used to describe the modern wave mechanical model of the atom.

It is the atomic model introduced by Erwin Schrodinger in 1927 based on the principles of quantum mechanics. It was an advancement over the Bohr model of the atom.

In this model, the atomic orbital is described as a region in space where there is a high probability of finding an electron. Hence, the electron is not found in specific orbits according to the Bohr model, rather, we describe the probability of finding the electron. This is the contemporary approach to the study of atomic structure.

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Answer:

299 mL/m

Explanation:

\((\frac{29.9L}{1 cm})(\frac{1000mL}{1L})(\frac{1 cm}{100 m}) = \frac{(29.9)(1000mL)}{100 m} = 299 mL/m\)

Question 1 : the empirical formula for the compound is CBr₄.

Question 2 : the molecular formula for the compound is CBr₄.

To determine the empirical formula and molecular formula of the compound, we need to analyze the given percentage composition and molecular weight. Let's go through the process step by step:

Empirical Formula:

The percentage composition by mass states that the compound contains 3.622% carbon and 96.38% bromine. We can assume a 100g sample of the compound to simplify the calculations.

Mass of carbon = (3.622/100) * 100g = 3.622g

Mass of bromine = (96.38/100) * 100g = 96.38g

Next, we need to find the moles of each element. We can use their atomic masses to convert the masses to moles.

Atomic mass of carbon (C) = 12.01 g/mol

Atomic mass of bromine (Br) = 79.90 g/mol

Moles of carbon = Mass of carbon / Atomic mass of carbon = 3.622g / 12.01 g/mol ≈ 0.3017 mol

Moles of bromine = Mass of bromine / Atomic mass of bromine = 96.38g / 79.90 g/mol ≈ 1.205 mol

To find the simplest whole-number ratio between the elements, we divide both moles by the smallest number of moles (0.3017 mol in this case):

Moles of carbon (C) = 0.3017 mol / 0.3017 mol = 1

Moles of bromine (Br) = 1.205 mol / 0.3017 mol ≈ 4

Therefore, the empirical formula for the compound is CBr₄.

Molecular Formula:

Given that the molecular weight (molar mass) of the compound is 331.6 amu, we need to compare it with the empirical formula weight.

Empirical formula weight = (Atomic mass of carbon × Number of carbon atoms) + (Atomic mass of bromine × Number of bromine atoms)

= (12.01 amu × 1) + (79.90 amu × 4) = 12.01 amu + 319.6 amu = 331.61 amu

The molecular weight is very close to the empirical formula weight, indicating that the empirical formula represents the molecular formula as well. Therefore, the molecular formula for the compound is also CBr₄.

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The volume of carbon dioxide gas forms is equal to 48 L and The volume of oxygen gas needed is 76 L.

A combustion reaction can be explained as a reaction that forms fire and takes place at a high temperature. Combustion Reaction is the combustion of hydrocarbon reacts with oxygen gas to give carbon dioxide and water molecules.

Given the chemical reaction of the combustion reaction of hexane:

\(2C_6H_{14}(g) + 19O_2(g) \longrightarrow 12CO_2(g)+14H_2O(g)\)

Given the volume of hexane = 8.00 L

The number of moles of hexane  = 8/22.4 = 0.357 mol

The moles of oxygen required to react with 0.357 mol of Hexane is equal to :

= (19/2) × 0.357

= 3.39 mol

The volume of oxygen gas = 3.39 × 22.4 = 76 L

The moles of CO₂ produced from 0.357 mol of Hexane is equal to :

= (12/2) × 0.357

= 2.14 mol

The volume of carbon dioxide gas forms = 2.14 × 22.4 = 48 L

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Yes, s = u+v/2+t, where s is the displacement, u is the beginning velocity, v is the end velocity, and t is the time required, is the equation of motion for a body travelling with uniform acceleration.

The basic law of motion, which states that a body's rate of change in displacement is directly proportional to its velocity, provides the basis for this equation. The equation of motion for a body travelling with constant acceleration, s = ut + 1/2at2, may be used to derive it.

The equation of motion for a body travelling with uniform acceleration is given by replacing the value of an as (v-u)/t and getting s = u+v/2+t. This formula is only accurate when the body's acceleration is constant and uniform.

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This representation suggests that the element is phosphorus (P) with a mass number of 30, which is incorrect. The correct mass number for phosphorus is approximately 30.97. The incorrect representation for a neutral atom is 36Li

To determine the correct representation for a neutral atom, we need to consider the atomic number (Z) and mass number (A) of the element. The atomic number represents the number of protons in the nucleus, while the mass number represents the sum of protons and neutrons.

Let's analyze the given representations:

36Li:

This representation suggests that the element is lithium (Li) with a mass number of 36, which is incorrect. The correct mass number for lithium is approximately 6.94.

613C:

This representation suggests that the element is carbon (C) with a mass number of 13, which is correct. Carbon has different isotopes, and 13C represents one of its stable isotopes.

3063Cu:

This representation suggests that the element is copper (Cu) with a mass number of 63, which is correct. Copper has different isotopes, and 63Cu represents one of its stable isotopes.

1530P:

This representation suggests that the element is phosphorus (P) with a mass number of 30, which is incorrect. The correct mass number for phosphorus is approximately 30.97.

Therefore, the incorrect representation for a neutral atom is 36Li, as it does not match the known properties of lithium.

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Answer:

metallic bond

because this diagram is electron gas theory which shows metallic bond

Answer:

40,113 years

Explanation:

To find the age of the sample, you need to use the half-life formula:

\(N(t)=N_0(\frac{1}{2})^{t/h\)

In this formula:

------> N(t) = current mass (g)

------> N₀ = initial mass (g)

------> t = time passed (yrs)

------> h = half-life (yrs)

You can plug the given values into the equation and rearrange the formula to find "t".

N(t) = 0.781 g                       t = ? yrs

N₀ = 100 g                           h = 5730 yrs

\(N(t)=N_0(\frac{1}{2})^{t/h\)                                           <----- Half-life formula

\(0.781=100(\frac{1}{2})^{t/5730}\)                                     <----- Insert values

\(0.00781=(\frac{1}{2})^{t/5730}\)                                       <----- Divide both sides by 100

\(log_{1/2}(0.00781)=log_{1/2}((\frac{1}{2})^ {t/5730})\)               <----- Take \(log_{1/2}\) of both sides

\(7.00 = \frac{t}{5730}\)                                                   <----- Solve \(log_{1/2}\)

\(40,113 = t\)                                                   <----- Multiply both sides by 5730

The given sample is 40,113 years .

Half-life, in radioactivity, is the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay.

Half-life formula,

\(\rm N(t)\;=N_0(\dfrac{1}{2})^\frac{t}{t1/2}\)   .......(1)

where,

N(t)=current mass

N₀=initial mass

t=time period

h=half -life

Given,

N(t)=0.781g, t=? yrs, N₀=100g, h=5730 years

\(\rm N(t)\;=N_0(\dfrac{1}{2})^\frac{t}{t1/2}\)

put the values, in ......(1)

0.781=100(1/2) \(t/5730\\\)

log₁/₂(0.00781)=log₁/₂ ( 1/2)\(t/5730\)

7=t/5730

40,113=t

Hence, the given sample is 40,113 years .

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The mass of CaF₂ formed when 47.8 mL of 0.334 M NaF is treated with an excess of aqueous calcium nitrate, Ca(NO₃)₂ is 0.624 g

We'll begin by calculating the number of mole of NaF in the solution. This can be obtained as follow:

Volume = 47.8 mL = 47.8 / 1000 = 0.0478 L

Molarity of NaF = 0.334 M

Mole = Molarity x Volume

Mole of NaF = 0.334 × 0.0478

2NaF + Ca(NO₃)₂ —> CaF₂ + 2NaNO₃

NOTE: This is a double displacement reaction.

From the balanced equation above,

2 moles of NaF reacted to produce 1 mole of CaF₂.

Therefore,

0.016 mole of NaF will react to produce = 0.016 / 2 = 0.008 mole of CaF₂.

Mole of CaF₂ = 0.008 mole

Molar mass of CaF₂ = 40 + (19×2) = 78 g/mol

Mass = mole × molar mass

Mass of CaF₂ = 0.008 × 78

Therefore, the mass of CaF₂ formed when 47.8mL of 0.334 M NaF is treated with an excess of aqueous calcium nitrate, Ca(NO₃)₂ is 0.624 g

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Answer:

0.623

Explanation:

Answer:

Titanium

Explanation:

titanium can form 4+ cations

Answer:

most common non metal is chlorine

Answer:

are u ok

Explanation:

Answer:

C.) That all matter was composed of earth, fire, water and air

Explanation:

Just took the test

Sense receptors belong to autonomic nervous system which include brain , spinal cord and the nerves.

The brain is defined as a complex organ which is capable of controlling various actions like thinking, memory,emotions, touch , huger and every regulatory process of our body.

The brain along with the spinal cord make up the central nervous system.The average adult brain is made up of 60% of fat and remaining 40 % comprises of water, carbohydrates, proteins and salts.

It has blood vessels and nerves which include neurons and glial cells.It has 3 parts,cerebrum,cerebellum and medulla oblongata which can also be divided into forebrain,midbrain and hindbrain. The brain controls the involuntary actions of body like breathing,digestion,etc.

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Answer:

Hope this helps ;) don't forget to rate this answer !

Explanation:

The molar mass of a sample can be calculated using the formula:

Molar mass = (molecular weight) / (number of moles)

To find the molar mass, we first need to find the molecular weight of the sample. The molecular weight is the weight of a single molecule of the substance in atomic mass units (amu).

To find the molecular weight, we need to convert the weight of the molecule from grams to amu. One amu is equal to 1.66 x 10^-24 grams.

So, to convert the weight of the molecule from grams to amu, we can divide the weight of the molecule (5.34 x 10^-23 grams) by the conversion factor (1.66 x 10^-24 grams/amu):

Molecular weight (amu) = (5.34 x 10^-23 grams) / (1.66 x 10^-24 grams/amu)

= 3.22 x 10^-22 amu

Now that we have the molecular weight, we can use it to calculate the molar mass. However, we need to know the number of moles in order to do this. Without this information, it is not possible to calculate the molar mass.

Answer:

i agree

Explanation: