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Klio2033 [76]
3 years ago
6

Is smelting copper is a chemical change or physical change?

Chemistry
1 answer:
Grace [21]3 years ago
8 0
Smelting copper is a chemical change
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Why is specific heat capacity more useful then heat capacity when comparing two materials
coldgirl [10]

Answer:

Explanation:

Specific heat capacity can be defined as the heat required to raise the temperature of a unit mass of a substance by 1kelvin.

The heat capacity on the other hand, expresses the heat required to raise the temperature of  asubstance by 1kelvin.

When we use specific heat capacity, we are particular about the amount of heat that would be needed to actually cause a temperature change in a unit of a substance. This suggests that even if we don't have a complete substance, we can be sure that by knowing the mass of a unit of a body one can easily estimate how much heat is required to raise its temperature. The specific heat is fundamental in calculating the heat capacity of a body. Without the value of the specific heat, we cannot evalutate the heat capacity of a body.

5 0
4 years ago
Seafood Watch has made several unsustainable fishing practices illegal. true or false
zysi [14]

Answer:

True

Explanation:

As per the standards of fishing outlined by Seafood watch, fishing related to endangered species , threatened species, over fished or depleted species has been restricted to allow these fishes to recover otherwise they may become extinct. Catching of mammals, sharks, finish, turtles, shellfish  etc. have been strictly restricted . Not only this several fishing practices have also been restricted such as sea floor netting , Night setting , Side setting, Line shooter and mainline  tension, bait caster, live  bait, thawing bait  etc.

6 0
3 years ago
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A liquid with weak intermolecular forces will
SCORPION-xisa [38]

Will be destroyed unless helped.
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3 years ago
Which formula represents 1,2-ethanediol?
Oliga [24]

Answer:

1) C2H4(OH)2

Explanation:

A 1,2-ethanediol has an ethane structure consisting of two Carbon atoms with a hydrogen from each carbon substituted by a hydroxyl group. This makes it a 1,2-diol.

8 0
2 years ago
In 1687, ___ explained that gravitational forces hold the solar system together.
Nimfa-mama [501]
Newton ,perhaps as many other originations  use it as a gravitational law
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3 years ago
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