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mart [117]
3 years ago
9

When you light a fire place what energy transformation takes place

Chemistry
2 answers:
salantis [7]3 years ago
5 0
Kinetic energy is transformed into heat energy
DedPeter [7]3 years ago
3 0
Heat energy is released to warm the house
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Silver chloride is virtually insoluble in water so that the reaction appears to go to completion. How many grams of solid NaCl m
masya89 [10]

Answer:

0.535 g

Explanation:

The reaction that takes place is:

  • NaCl + AgNO₃ → AgCl + NaNO₃

First we <u>calculate how many AgNO₃ moles are there in 25.0 mL of a 0.366 M solution</u>, using the <em>definition of molarity</em>:

  • Molarity = moles / liters
  • moles = Molarity * liters

<em>Converting 25.0 mL to L </em>⇒ 25.0 / 1000 = 0.025 L

  • moles = 0.366 M * 0.025 L = 0.00915 mol AgNO₃

Then we <u>convert AgNO₃ moles into NaCl moles</u>:

  • 0.00915 mol AgNO₃ * \frac{1molNaCl}{1molAgNO_3} = 0.00915 mol NaCl

Finally we<u> convert NaCl moles into grams</u>, using its <em>molar mass</em>:

  • 0.00915 mol NaCl * 58.44 g/mol = 0.535 g
4 0
3 years ago
4g of sugar is dissolved in 46 g of water calculate the concentration as percent by mass
Lina20 [59]
The  concentration as  %  by  mass  is  calculated as below

mass  of  solute/mass of  solvent x100
mass of  solute(sugar) = 4g
mass of   solvent(water) =46  g

= 4g/  46 g x100 = 8.7%
3 0
3 years ago
Read 2 more answers
If 20 grams of aluminum react with 200 grams of bromide to form aluminum bromide and no aluminum is left after the reaction, but
Varvara68 [4.7K]
The answer is: 197 grams

Why?

All 20 grams of aluminum was used to form aluminum bromide. Only 177 grams of bromide were used to make aluminum bromide, since 23 grams were left over.

20 grams + 177 grams = 197 grams, so the answer is 197 grams.
8 0
4 years ago
ILL GIVE BRAINLISTS!!!!!!
8_murik_8 [283]

I think A would be the correct answer to this question.

4 0
3 years ago
Read 2 more answers
What is the balance of this chemical equation Ca+N2→Ca3N2?
Schach [20]

Answer:

The balance of chemical equation is given below.

3Ca + N2------ Ca3N2

5 0
4 years ago
Read 2 more answers
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