can someone please help me?

I am assuming you are talking about their phase and in that case, they are mostly solid except for mercury and bromine.

Hope that helps!

Answer:

you can also get oxygen from the mouth but you get more from the nose so i would chose nose

From what we know we can confirm that currently, the primary source of sulfur dioxide of emissions into the atmosphere is coal and other fossil fuel burning in industry.

From what we know, this compound has proved to be quite toxic for humans to breathe. Increased concentrations of this in the atmosphere lead to increased rates of lung disease among other health complications.

Therefore, we can confirm that the primary source of sulfur dioxide of emissions into the atmosphere is coal and other fossil fuel burning in industry.

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Answer:

c

Explanation:

plants decrease the levels of carbon dioxide in the atmosphere due to the process of photosynthesis

Answer:

C = q / m x dT

Explanation:

By definition, specific heat, C = heat absorbed, q divided by mass, m and change in temperature, dT

So C = q / m x dT

Answer:

The specific heat capacity of a material is the energy required to raise one kilogram (kg) of the material by one degree Celsius (°C)

Formula:

energy (J) = mass (kg) * specific heat capacity (J/kg°C ) * change in temperature

required answer:

using the formula:

C =   [tex]\frac{102}{12.5*(55-22)}[/tex]

C = 0.2473 J/kg°C

             ↑

This is the specific heat capacity of copper

Answer: Neutral

Explanation: This is because, in the ph scale, greater than 7 indicates base or alkaline (basic), while less than 7 indicates that it is acidic.

Answer: The water Inside the cell is stored inside the vacuole(s)

Explanation:

Hope this helps :)

Answer: that all thre water cycle and C is vaporation

Explanation:

Answer:

what do you need help with .

Explanation:

?

Answer:

Based on stoichiometry HNO3 to H2O is 6:2

Use 9 grams to find the moles of HNO3

9 grams/63g/mol=0.143 moles of HNO3

HNO3:H2O

6:2

0.143*2/6=0.048

H2O moles is 0.048moles

Mass of water =0.048moles*18g/mol=0.864g

To the nearest tenth=0.9grams

( sorry if its not right)

Answer:

C. an ether

Explanation:

The chemical equilibrium has the concentration of reactants and products equal. The addition of NaCl shifts the equilibrium towards the left, leading to soap precipitation.

The chemical equation for the reaction is:

[tex]\rm C_{17}H_{35}COONa\;\leftrightharpoons C_{17}H_{35}COO^-\;+\;Na^+[/tex]

The addition of NaCl to the reaction results in the dissociation of Na and Cl ions.

At the equilibrium condition, the concentration of all the species is equal. The addition of NaCl results in an increase in the product concentration in the solution, with the common ion effect.

The increase in the product concentration results in the reaction moving towards the reactant formation and process in the left direction.

Thus, the addition of NaCl shifts the equilibrium towards the left, leading to soap precipitation. Thus, option B is correct.

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Answer:

the correct answer is (B The equilibrium will shift to the left to such an extent that it leads to the precipitation of solid soap.)

i just took the test

Explanation:

To convert it in Kg/m³ divide by 1000 and multiple with 10⁶

[tex]Density = 0.2 \: \times \frac {{10}^{6} }{10 {}^{3} } = 0.2 \times {10}^{3} \\ Density = 200 \: kg \: m {}^{ - 3} [/tex]

This problem is providing a chemical reaction between 0.15 mol of copper and 0.38 mol of HCl and asks for the moles of HCl that are left over. At the end, the answer turns out to be 0.08 mol.

In chemistry, we define stoichiometry as a tool allowing to calculate mole-mass or mole-mole relationships between different species involved in a chemical reactions.

In this case, for 0.15 mol of copper and 0.38 mol of HCl one can apply a mole ratio in order to calculate the moles of HCl consumed by the former, considering the 1:2 mole ratio between them:

[tex]0.15 molCu*\frac{2mol HCl}{1molCu} \\\\=0.30 mol HCl[/tex]

This means that if 0.30 moles of HCl react and 0.38 moles are available, there is a left over or unused moles of:

[tex]leftover=0.38mol-0.30mol\\\\leftover=0.08mol[/tex]

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Answer:

B,) a carboxylic acid and an amine

Explanation:

A functional group is an atom or group of atoms inside a molecule that has comparable chemical properties anytime it appears in numerous compounds. When other parts of the molecule are not similar, some functional groups react in certain manners.

Carboxylic acid is a carbonyl-containing functional group, with carbon atom bonded to an hydroxyl group on one side and on the other side is either a carbon or hydrogen atom.  

An amine group is composed of a nitrogen atom bonded to a combination of carbon and hydrogen atoms.

Answer:

a carboxylic acid and an amine

Explanation:

Answer: the number of a chemical element in the periodic system,

Explanation:

Answer:

Option B

Explanation:

All people who are asked to testify in a criminal case must first be issued a subpoena by law enforcement, is a "false statement" or option B. A subpoena is a request to appear in court which is usually given out by the attorneys who are a part of the case, the law enforcement does not give out subpoenas, so this is indeed a false statement.

Hope this helps.

Answer: B

Explanation:

Thrust acts on the spacecraft and propels in the space.

1. The force created by the shuttle's engines in expelling the burning fuel produces an equal thrust in the opposite direction. This thrust acts on the spacecraft and propels in the space.

2. The thermosphere and the stratosphere are our hottest atmosphere layers because these two layers are present near the sun as compared to other layers of atmosphere.

3. When the meteors hit the atmosphere, meteors rub against air particles and create friction which is heating the meteors. The heat vaporizes most meteors, creating what we call shooting stars.

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Ionic compound is defined as those which contains ion and are held together by the attractive forces among the oppositely charged ions.

The names of the ionic compounds is given above and is the most appropriate answer.

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Answer:

A. Karl Landsteiner is the most likely for her to mention.

Answer:

D

Explanation:

if they didn't all use accounting skills and info I'd be considered

Answer:

If the speed is increasing, the car has positive acceleration. When the car slows down, the speed decreases. The decreasing speed is called negative.

Answer:

Krypton

Explanation:

It is a noble gas, so it isn't reactive since it already has 8 valence electrons.

The mutation is a helpful mutation since it helps bacteria to survive and reproduce.

Hope you could understand.

If you have any query, feel free to ask.

Catabolic reactions break down large organic molecules into smaller molecules, releasing the energy contained in the chemical bonds. These energy releases (conversions) are not 100 percent efficient. The amount of energy released is less than the total amount contained in the molecule.