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yan [13]
3 years ago
8

Which is another name for a homogenous mixture?

Chemistry
1 answer:
polet [3.4K]3 years ago
5 0

C: Solution is another name for Homogenous mixture


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which of the following is not part of the big bang theory?A. In the beginning the universe was too hot for atoms to exist. B. As
erastovalidia [21]
A.) In the beginning the universe was too hot for atoms to exist. 

Because choice b,c,and d are all part of the big  bang theory.
8 0
3 years ago
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NaCl has a Delta. Hfus = 30. 2 kJ/mol. What is the mass of a sample of NaCl that needs 732. 6 kJ of heat to melt completely? Use
tia_tia [17]

The mass of NaCl sample has been 24.3 g. Thus, option A is correct.

The heat of fusion has been the amount of heat required to convert  1 mole of substance into solid to liquid state.

The heat required has been given as:

Q=m\Delta H

<h3>Computation for the mass of NaCl</h3>

The given solution has heat of fusion, \Delta H_{fus}=30.2\rm kJ/mol

The heat required to melt the sample has been, Q=732.6\;\rm kJ/mol

Substituting the values for the mass of NaCl

\rm 732.6\;kJ/mol=Mass\;\times\;30.2\;kJ/mol\\\\&#10;Mass=\dfrac{732.6}{30.2}\;g\\\\&#10; Mass=24.3\;g\\

The mass of NaCl sample has been 24.3 g. Thus, option A is correct.

Learn more about heat of fusion, here:

brainly.com/question/87248

5 0
3 years ago
Electron configuration of ag
stepladder [879]

Silver/Electron configuration

[Kr] 4d¹⁰ 5s¹

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4 0
3 years ago
How many moles of ammonia can be formed from 4.0 mol H2
Bess [88]

Answer: 1. 2.7 moles  of ammonia are formed

2. 12.0 moles  of hydrogen are required

3. 2.0 moles of nitrogen are required

Explanation:

The balanced chemical equation is:

N_2+3H_2\rightarrow 2NH_3

According to stoichiometry:

3 moles of hydrogen form = 2 moles of ammonia

Thus 4.0 moles of hydrogen form =\frac{2}{3}\times 4.0=2.7moles of ammonia

According to stoichiometry:

2 moles of ammonia are formed by = 3 moles of hydrogen

Thus 8.0 moles of ammonia are formed by  =\frac{3}{2}\times 8.0=12.0moles of hydrogen

According to stoichiometry:

3 moles of hydrogen react with = 1 mole of nitrogen

Thus 6.0 moles of hydrogen react with =\frac{1}{3}\times 6.0=2.0moles of nitrogen

3 0
3 years ago
What model did Rutherford make??
Rainbow [258]
A model of the atom devised by Ernest Rutherford.
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