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3 years ago

Who wants a metal?

Chemistry

2 answers:

tiny-mole [99]3 years ago

8 0

Which best compares 1 mol of sodium chloride to 1 mol of aluminum chloride?

A. Both have the same molar mass.

B. Both have the same number of ions.

C. Both are made up of 6.02 mc014-1 1023 molecules.

D. Both are made up of 6.02 mc014-2 1023 formula units.

The correct answer on E.D.G is ---Both are made up of 6.02 mc014-2 1023 formula units. D

Veronika [31]3 years ago

4 0

Answer: Option (d) is the correct answer.

Explanation:

A formula unit is basically empirical formula of a compound which tells us how many atoms of one element are combining with how many atoms of another element.

For example, empirical formula of sodium chloride is NaCl. So, basically it shows that one atom of sodium is reacting with one atom of chlorine.

Also according to Avogadro, there are $6.022 \times 10^{23}$ atoms present in 1 mole of each substance.

Thus, we can conclude that both are made up of $6.022 \times 10^{23}$ formula units best compares 1 mol of sodium chloride to 1 mol of aluminum chloride.

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Which of the following examples illustrates a number that is correctly rounded to three significant figures? Which of the follow

Alex

Answer:

20.0332 grams to 20.0 grams

Explanation:

6 0

3 years ago

Please help both these answers use the graph . I will mark brainly !!

____ [38]

1 is 4

2 is d

hope it helps

3 0

3 years ago

Which statement below best describes mutations?

Studentka2010 [4]

Answer:

C. Mutations are a change in DNA or a chromosome and can be helpful, harmful or may have no affect.

Explanation:

Mutations are spontaneous random changes that occurs in the genetic make up of an organisms. Mutations are rare and their rate of occurrence is random.
Mutations may occur on the gene level known as gene mutations or at chromosome levels called chromosomal mutations.
Mutations may be beneficial, harmful or have no effect on a given organisms. Harmful mutations cause disorders that may lead to abnormality or death of an organisms. Beneficial mutations improve an organisms adaptability to the environment.

8 0

3 years ago

Vaporized water is also known as

viva [34]

Answer:

fog

Explanation:

4 0

2 years ago

State the definition of the partial molar Gibbs energy.

balu736 [363]

Explanation :

As we know that the Gibbs free energy is not only function of temperature and pressure but also amount of each substance in the system.

$G=G(T,P,n_1,n_2)$

where,

$n_1\text{ and }n_2$ is the amount of component 1 and 2 in the system.

Partial molar Gibbs free energy : The partial derivative of Gibbs free energy with respect to amount of component (i) of a mixture when other variable $(T,P,n_j)$ are kept constant are known as partial molar Gibbs free energy of $i^{th}$ component.

For a substance in a mixture, the chemical potential $(\mu)$ is defined as the partial molar Gibbs free energy.

The expression will be:

$\bar{G_i}=\mu_i=\frac{\partial G}{\partial n_i}_{(T,P,n_j)}$

where,

T = temperature

P = pressure

$n_i\text{ and }n_j$ is the amount of component 'i' and 'j' in the system.

4 0

3 years ago