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VashaNatasha [74]
3 years ago
12

A polymer contains monomers linked by

Chemistry
1 answer:
pshichka [43]3 years ago
3 0

Answer:

a

Explanation:

covalent bonds

polymer deal with plastic

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Acids reacts with base and produces salt and water represent it in the form of chemical equation
tatiyna

Answer:

HCl+ NaoH- Nacl+H2O

Explanation:

base react with acid

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It is letter C: Continental crust is thicker than oceanic crust.
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A solution was prepared by mixing 50.0 g
frez [133]

Answer:

4.78 %.

Explanation:

<em>mass percent is the ratio of the mass of the solute to the mass of the solution multiplied by 100.</em>

<em></em>

<em>mass % = (mass of solute/mass of solution) x 100.</em>

<em></em>

mass of MgSO₄ = 50.0 g,

mass of water = d.V = (0.997 g/mL)(1000.0 mL) = 997.0 g.

mass of the solution = mass of water + mass of MgSO₄ = 997.0 g + 50.0 g = 1047.0 g.

<em>∴ mass % = (mass of solute/mass of solution) x 100</em> = (50.0 g/1047.0 g) x 100 = <em>4.776 % ≅ 4.78 %.</em>

4 0
3 years ago
The symbol for the hydroxide ion is _____. <br> H +<br> H 3O - <br> H(OH) <br> OH -
erastova [34]
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PLEASE ANSWER CORRECTLY! MARKING BRANLIEST!
seropon [69]

Answer: oil spill, forest fire

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The short term environmental change is a change that occur in an environment which exerts it's effect over the environment and the living beings for a short duration. The damage caused by the short term environmental change can be recovered in a short time. The oil spill and forests fire are the example of short term environmental changes.

The oil spill will reduce the abundance of the aquatic species until the oil is circulated out at the bay of the water body therefore, it is a short term environmental change.

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