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3 years ago

When carbon is in the atmosphere, what form is it in?

Chemistry

2 answers:

eduard3 years ago

8 0

Answer:

gas

Explanation:

gas?

Naya [18.7K]3 years ago

6 0

Answer:

$\boxed {\sf Gas}$

Explanation:

The atmosphere is defined as all the layers of gas that surround a planet. Therefore, carbon must be in the <u>gaseous</u> form.

Also, if you think about it another way: part of the atmosphere is the gas surrounding somebody right now. When they exhale, they release carbon dioxide as a gas.

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What is one product of a condensation reaction between two amino acids, such as glycine and alanine?

Ipatiy [6.2K]

Answer:

Gly-Ala

(Dipeptide).

Explanation:

A condensation reaction is a reaction in which two molecules combine to form a single molecule with the loss of a small molecule e.g water.

When two amino acids, such as alanine and glycine react, they yield a mixture of dipeptides (via dipeptide bond) and water. That is, The −OH from the carboxyl group (-COOH) of one amino acid combines with a hydrogen atom from the amine group (-NH2) of the other amino acid to produce water.

3 0

3 years ago

If 75.8 grams of Ca(OH)2 were dissolved in enough water to make a solution with a total volume of 1.20 liters, what would the mo

schepotkina [342]

The molarity of the solution is calculated by dividing the number of moles of the solute, in moles, by the total volume of the solution, in liters.

The molar mass of calcium hydroxide, Ca(OH)2 is calculated below.

m = molar mass Ca + 2(molar mass O) + 2(molar mass H)

Substituting,
m = 40 g/mol + 2(16 g/mol) + 2(1 g/mol)
m = 74 g/mol

To get the number of moles Ca(OH)2 in 75.8 grams,
n = (75.8 grams)(1 / 74 g/mol) = 1.024 moles

The molarity, M, is therefore,
M = (1.024 moles Ca(OH)2) / (1.2 L)
M = 0.854 M

<em>Answer: 0.854 M</em>

7 0

3 years ago

Read 2 more answers

How does energy move

Gekata [30.6K]

energy is transferred through vibrations of electric and magnetic fields

6 0

3 years ago

In an exactly.200M solution of benzoic acid, a monoprotic acid, the [H+] = 3.55 × 10–3M. What is the Ka for benzoic acid? 8.88 ×

kondaur [170]

Answer : Option C) 6.3 X $10^{-5}$ .

Explanation : Given is the concentration of benzoic acid is 0.200 M, now only one monoprotic acid ion is getting separated from it [ $[ H^{+} ]$ .

So, the reaction will be as,

$H C_{7} H_{6}O_{2}$ ⇔ $[ H^{+} ]$ + $C_{7} H_{6}O_{2}$ .

We can use the ICE method for calculation,
The molar concentration of $H C_{7} H_{6}O_{2}$ is 0.200 M and the [ $[ H^{+} ]$ is 3.55 X $10^{-5}$ .

So here on reactant side we get, (0.2 - 3.55 X $10^{-5}$ ) = 0.196
on the product it remains as 3.55 X $10^{-5}$ .

So, $K_{a}$ = (3.55 X $10^{-5}$ ) X (3.55 X $10^{-5}$ ) / 0.196

We will get $K_{a}$ as 6.42 X $10^{-5}$ which is close to 6.3 X $10^{-5}$ .

4 0

3 years ago

Which example indicates that a chemical change has occurred? *

andrezito [222]

Answer:

A. When two aqueous solutions are mixed, a precipitate is formed.

Explanation:

The precipitate (a solid substance that falls from the liquid) is the result of a chemical reaction taking place between the liquids.

The other three answer choices are indicative of physical changes (temperature change, phase change, color change).

7 0

3 years ago