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Alexus [3.1K]
2 years ago
6

Which statement is true?

Chemistry
2 answers:
alisha [4.7K]2 years ago
4 0

Answer:

The correct answer is:

Atoms always remain intact during chemical reactions.

Just took it, Have a nice day!

algol [13]2 years ago
3 0

The statement that is true is that B. Atoms always remain intact during chemical reactions.

Atoms simply mean the <u>basic units of matter.</u> They're the defining structure of an element. Atom is also known as the smallest unit of matter.

It should be noted that atoms always remain intact during chemical reactions. They cannot be added and removed when there are <em>chemical reactions.</em>

Read related link on:

brainly.com/question/19338615

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In calculating the equilibrium constant for a reaction, the coefficients of the chemical equation are used as exponents for the
BartSMP [9]

Answer: The given statement is TRUE.

Explanation:

An equilibrium reaction is one in which rate of forward reaction is equal to the rate of backward reaction.

Equilibrium constant is defined as the ratio of the product of the concentration of products to the product of the concentration of reactants each raised to their stochiometric coefficient.

For example for the given equilibrium reaction;

2H_2O(g)\leftrightharpoons 2H_2(g)+O_2(g)

K_{eq}=\frac{[H_2]^2[O_2]}{[H_2O]^2}

Thus the given statement that in calculating the equilibrium constant for a reaction, the coefficients of the chemical equation are used as exponents for the factors in the equilibrium expression is True.

7 0
3 years ago
Generally speaking, elements with high electronegativities are 1. nonmetals. 2. likely to form anions (except the noble gases).
satela [25.4K]

Answer:

1. Nonmetals.  

2. Likely to form anions (except the noble gases).  

3. All of these  

4. Easily reduced (except the noble gases).

Explanation:

Elements with high electronegativities are found towards the upper right corner of the Periodic Table. Thus, they have all the above properties.

4 0
3 years ago
The amino acids are combinations of
aalyn [17]

Answer:  The correct answer is:  [B]:

_________________________________________________

                         " organic acid and amines " .

_________________________________________________

<u>Note</u>:  Choice B:  "organic acid and amines" ;

            is the only answer choice that contains "amines" (hint: <u> amin</u><u>o acid</u> / <u>amin</u><u>e)</u> ;  which are "proteins" .

           As such;  Choice "B" is the <u><em>only</em></u>  correct answer choice.

_____________________________________________________

Hope this helps!

    Best wishes to you!

_____________________________________________________

5 0
3 years ago
Read 2 more answers
Describe the structure of atoms including the masses, electrical, charges, and locations of protons, neutrons in the nucleus ,an
steposvetlana [31]

Answer:

The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge).

Explanation:

The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge).

3 0
2 years ago
A sample of a pure compound that weighs 60.3 g contains 20.7 g Sb (antimony) and 39.6 g F (fluorine). What is the percent compos
Volgvan

Answer:

The percent composition of fluorine is 65.67%

Explanation:

Percent Composition is a measure of the amount of mass an element occupies in a compound. It is measured in percentage of mass.

That is, the percentage composition is the percentage by mass of each of the elements present in a compound.

The calculation of the percentage composition of an element is made by:

percent composition element A=\frac{total mass of element A}{mass of compound} *100

In this case, the percent composition of fluorine is:

percent composition of fluorine=\frac{39.6 g}{60.3 g} *100

percent composition of fluorine= 65.67%

<u><em>The percent composition of fluorine is 65.67%</em></u>

4 0
3 years ago
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