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lawyer [7]
3 years ago
5

Why do you think humpback whales sing

Chemistry
1 answer:
SIZIF [17.4K]3 years ago
5 0

Answer:

to help explore seas around them.

Explanation:

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What happens during a chemical reaction?
frozen [14]

Answer: The reactants’ bonds break, and bonds of the products form.

Explanation:

When a chemical reaction takes place, the bonds are broken and new bonds are formed to make new molecules. Like when 2 water molecules are broken down to form hydrogen and oxygen.

3 0
3 years ago
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How is the sugar cube like a sedimentary rock?
noname [10]
This is heated until evaporation occurs and sugar crystals are precipitated. This is similar to how chemical sedimentary rocks are formed (like rock salt or cave limestone). It is then separated into small individual crystals. This can be representative of weathering and erosion of rock into sediment
4 0
3 years ago
When a ball is rolling down a hill, what forces are acting on the ball? Why does it speed up?
Margaret [11]

Answer:gravity

Explanation:

3 0
3 years ago
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A gas mixture contains helium (He ), argon (Ar) , neon (Ne ), Xenon ( Xe), and krypton (Kr) gases. The total pressure of the gas
MA_775_DIABLO [31]

Answer:

0.488atm = Pressure Kr

Explanation:

The total pressure in a mixture of gases could be defined as the sum of the partial pressures of a mixture. For the mixture of gases in the problem:

Total pressure = Pressure He + Pressure Ar + Pressure Ne + Pressure Xe + Pressure Kr

Converting the total pressure to atm:

1252.5mm Hg * (1atm / 760 mmHg) = 1.648 atm

Replacing:

1.648atm = 0.32atm + 0.21atm + 0.44atm + 0.19atm + Pressure Kr

<h3>0.488atm = Pressure Kr</h3>
5 0
3 years ago
Pure substances are _______ in appearance ​
harina [27]

Answer:

constant appearance

Explanation:

this mean that a pure substance will have a constant appearance ,colour,density ,melting point and boiling point

3 0
3 years ago
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