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balandron [24]
3 years ago
12

In a chemical reaction, energy may be released in what forms

Chemistry
2 answers:
Ipatiy [6.2K]3 years ago
7 0
Exothermic reactions
bezimeni [28]3 years ago
7 0
In a chemical reaction, energy may be released in exothermic reaction. One example may be the reaction of water with H2SO4.

The opposite is endothermic reaction such as ice melting
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Heating curve shows temperature verses energy gain. Which parts of the curve represent a gain in potential energy?
Brilliant_brown [7]

Answer:

Those two horizontal lines.

Explanation:

Hello there!

In this case, when focusing on these heating curves, it is important to say they tend to have two constant-temperature sections and three variable-temperature sections. Thus, from lower to higher temperature, the first constant-temperature section corresponds to melting and the second one vaporization, whereas the three variable-temperature sections correspond to the heating of the solid until melting, the liquid until vaporization and the gas until the critical point.

In such a way, we infer that the boxes referred to constant temperature are referred to a gain in potential energy, that is, the two horizontal lines.

Regards!

6 0
2 years ago
____P + ____Br2 ---> ____PBr3
mr Goodwill [35]
2 P + 3 Br2 —> 2 PBr3

8 0
3 years ago
Which process changes sedimentary rock into igneous rock?
Fantom [35]

Answer:

Melting

Explanation:

When you melt a sedimentary rock it becomes magma. Once that magma cools and hardens it becomes an igneous rock.

6 0
2 years ago
TRUE OR FALSE, Nibiru is a Brown Dwarf that is 20 times the size of the Jupiter.
Ganezh [65]

Answer:false I think

Explanation:

5 0
2 years ago
HELP ME PLEASE!
ale4655 [162]
1) 180 days. 24 hours in a day. 60 minutes in an hour. 24X60=1440. Then, take that by the days: 180. 180X1440=259,200 minutes in 180 days.

2) One English ton is 2,240 pounds. There are approximately 453.6 grams in one pound. 1.8X10^-4= .00018(2240)=.4032 TONS. To convert to pounds: .4032(2240)=903.168. To convert that to grams, multiply by the number of grams in a pound. 453.6(903.168)=409,677 grams. I apologize if I misunderstood your question (your 1.80X10-4 Tons was confusing)

3)First of all, figure out how many years 62 months is. The closest divisible is 60, which would be 5 years. So, first let's take care of the 5 years. Multiply it by the number of minutes in a year to start. 525,600(5)=2,628,000 minutes. Then multiply by 60 to get seconds: 2,628,000(60)= 157,680,000. Now, DON'T FORGET the other two months! Assuming that they are normal months (not February), they would equal 61 days (one 31 days, the other 30). The seconds in a day are 24x60x60=8,400. Multiply that by your number of days. 8,400(61)=5,270,400. DON'T FORGET TO ADD THEM TOGETHER!!! Add your two months and your 5 years: 157,680,000+5,270,400= 162,950,400 seconds!
5 0
3 years ago
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