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Mkey [24]
3 years ago
15

A 15.0 g piece of graphite is heated to 100.0°C and placed in a calorimeter. The

Chemistry
2 answers:
never [62]3 years ago
7 0

Answer:

?a e i o iqjfjcjskskxkckbkv

LenKa [72]3 years ago
4 0

Answer:

0.714Jg^-10C^-1.

Explanation:

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2 NaCL + CaO = CaCL2 + Na2O
Naily [24]

222 grams of calcium chloride is produced.

<h3><u>Explanation</u>:</h3>

The mole concept and the chemical equation are very much closely related with each other. In the chemical reaction, the compounds or elements in both sides are balanced according to the number of atoms of each side of the reaction. So from there we can easily find the amount of reactant reacts to produce desired product.

Here we can see that 2 moles of sodium chloride produces 1 mole of calcium chloride.

So, 4 moles of sodium chloride will produce 2 moles of calcium chloride.

Now, atomic weight of calcium =40.

Atomic weight of chlorine =35.5.

So,the molecular weight of calcium chloride = 40+ 35.5\times2

=111.

It means, 1 mole of calcium chloride weighs 111 grams.

So 2 moles of calcium chloride weighs 111\times2 grams = 222 grams.

7 0
3 years ago
Which statement describes climate and not weather?
sasho [114]
I would answer B!! But your guess is as good as mine!!
3 0
3 years ago
Read 2 more answers
Assuming your average walking speed is 1.4 m/s, what time should you leave your house to arrive at school (0.84 km away) at 7:15
Juli2301 [7.4K]

Answer: 6:50

Explanation:

I think that is correct is use the math correctly u could get 6:50 like i got or 7:00.

3 0
3 years ago
Read 2 more answers
A 3-column table with 4 rows. The first column labeled Scenario has entries A, B, C, D. The second column labeled Object 1 has e
Andrews [41]

Answer:

Scenario A: Toward object 1

Scenario B: Toward object 2

Scenario C: Toward object 1

Scenario D: Toward object 1

Explanation: I Just FInished the instruction on edjunueity, please consider giving me the branliest answer

Hope This Helps :)

5 0
3 years ago
Read 2 more answers
A solution containing 1.0 M NiCl2 and 1.0 M SnBr2 undergoes electrolysis by passing a current between two platinum electrodes. W
scoray [572]

Answer:

Sn2+ (aq) + 2e- → Sn(s) ℰ° = -0.14 V

Explanation:

A close look at all the options shows that the most feasible first reaction is the reduction of tin II ion to ordinary metallic tin.

Given the two half cells, nickel is oxidized in one half cell to Ni II while in the second half cell, tin II ion is reduced to metallic tin. The platinum electrodes simply act as electron conduits in the cell.

4 0
3 years ago
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