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nata0808 [166]
3 years ago
6

This is due at 12am HELP!!

Chemistry
1 answer:
Lisa [10]3 years ago
4 0

Answer:

I have the same

Explanation:

like I have the same homework as you are u in my class lol?

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Work the following question out on your own sheet of paper and submit a picture of your work:
valina [46]

Answer:

Heat  absorbed by water = 3985.26 j

Explanation:

Given data:

Mass of water = 75 g

Initial temperature = 20.0°C

Final temperature = 32.7°C

Specific heat of water  = 4.184 j/g.°C

Heat  absorbed by water = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 32.7°C - 20°C

ΔT = 12.7 °C

Q = 75 g ×4.184 j/g.°C ×12.7 °C

Q = 3985.26 j

7 0
3 years ago
HCl(aq)+NaOH(aq)→NaCl(aq)+H2O(l)
Mariulka [41]

Answer:

Amount of H_{2}O produced will be half of its original value.

Explanation:

Balanced reaction: HCl+NaOH\rightarrow NaCl+H_{2}O

According to balanced equation, 1 mol of HCl reacts with 1 mol of NaOH to produce 1 mol of H_{2}O

If amount of reactants (NaOH and HCl) are halved then we can write-

0.5 mol of HCl reacts with 0.5 mol of NaOH to produce 0.5 mol of H_{2}O.

So, it is evident that amount of H_{2}O to be produced will be half if amount of reactants are halved.

5 0
3 years ago
An 80g sample of 3 1 H decays, leaving 2.5g of 3 1 H.
RUDIKE [14]
Here is the link to the answer:
7 0
3 years ago
What can be said of a closed system when an exothermic reaction proceeds in an aqueous solution?
lyudmila [28]
An exothermic reaction is a type of reaction that dissipates heat as the reaction proceeds. This would mean that in a closed system, when a reaction proceeds and is endothermic, the temperature of the solution  or the system would increase so as to maintain the equilibrium with the whole system.
8 0
2 years ago
1. Surface area, agitation, and ____ affect the dissolving rate of a solid. 1. termperature 2. location​
mamaluj [8]

Answer:??

Explanation:

3 0
2 years ago
Read 2 more answers
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