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mihalych1998 [28]
2 years ago
12

When calculating specific heat, what does the variable 'Q'

Chemistry
2 answers:
Kruka [31]2 years ago
7 0
The answer is thermal energy.
mariarad [96]2 years ago
4 0
The answer is AIM NOT POSTIVE
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Complete and balance the precipitation reactions. Include physical states. Refer to the solubility rules as necessary. precipita
Tcecarenko [31]

The balanced chemical reactions are:

AgNO{_3}(aq) \ + \ NaCl(aq) \rightarrow \ AgCl(s) \ + NaNO_{3}(aq)\\2K_{3}PO_{4}(aq) \ + 3MgCl_{2}(aq) \rightarrow \ 6KCl(aq) \ + Mg_{3}(PO_{4})_{2}(s)

Further Explanation:

The following reactions will undergo double displacement where the metal cations in each compound are exchanged and form new products.

For reaction 1, the compounds involved are nitrates and chlorides. To determine the states of the products, the solubility rules for nitrates and chlorides must be followed:

  • All nitrates are generally soluble.
  • Chlorides are generally soluble except AgCl, PbCl2, and Hg2Cl2.

Therefore, the products will have the following characteristics:

  • silver chloride (AgCl) is insoluble
  • sodium nitrate (NaNO3) is soluble

For reaction 2, the compounds involved are phosphates and chlorides. The solubility rules for phosphates and chlorides are as follows:

  • Phosphates are generally insoluble except for Group 1 phosphates.
  • Chlorides are generally soluble except for AgCl, PbCl2, and Hg2Cl2.

Hence, the products of the second reaction will have the following characteristics:

  • potassium chloride (KCl) is soluble
  • magnesium phosphate is insoluble

Insoluble substances are denoted by the symbols (s) in a chemical equation. The soluble substances are denoted as <em>(aq).</em>

Learn More

  1. Learn more about solubility brainly.com/question/1163248
  2. Learn more about solubility rules brainly.com/question/1447161
  3. Learn more about net ionic equations brainly.com/question/12980075

Keywords: solubility rules, precipitation reaction

3 0
3 years ago
What are the units of molality? A. mol/kg B. g/mol C. mol/L D. kg/mol
mezya [45]

Answer:

A. mol/kg

Explanation:

hope it helps .

4 0
3 years ago
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Which scenario ensures that Earth’s global temperature is maintained?
Angelina_Jolie [31]

Answer:

The energy that flows into the Earth system is equal to the energy that flows out of the Earth system.

Explanation:

Because I geussed it right

3 0
3 years ago
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Calculate the percentage of copper in copper oxide
WITCHER [35]

Well, look up the atomic weights of copper and oxygen; add them appropriately; divide the total for the copper by the total for the molecule; then multiply by 100 to get it as a percentage.

5 0
3 years ago
Using this illustration, what is the chemical formula? Picture and possible answers are below.
qwelly [4]
NH3. 1 nitrogen and 3 hydrogen
4 0
3 years ago
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