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TEA [102]
3 years ago
5

What must occur in order for a chemical reaction to be specifically classified as endothermic instead of exothermic?

Chemistry
2 answers:
Jlenok [28]3 years ago
8 0

Answer:

hey the comments are maxed out

Explanation:

Alla [95]3 years ago
6 0

Answer:  B- Chemical bonds are formed. Energy is released in the form of heat.

Explanation: I hoped that helped !

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Identify each of the following household substances as a strong electrolyte, weak electrolyte, or non-electrolyte: salt solution
wolverine [178]

Answer:

Electrolytes are substances that can ionize in water. They could be acids, bases or salts as long as they give ions when they dissolve in water.

Explanation:

  • <em>Strong electrolytes</em> completely ionize when dissolved in water, leaving no neutral molecules. The strong electrolytes here are:<u> salt water</u>, <u>baking soda (NaHCO3) solution.</u>
  • <em>Weak electrolytes</em> do not completely dissociate in solution, and hence have a low ionic yield. Examples of this would be<u> vinegar </u>and <u>bleach </u>(which could be sodium hypochlorite or chlorine, which are weakly dissociated).
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8 0
3 years ago
We gave an object with a density of 620 g/cm^3 and a volume of 75cm^3. What is the mass of this object?
Hitman42 [59]
d=\frac{m}{V} \ \ \ \Rightarrow \ \ m=dV\\\\&#10;d=620\frac{g}{cm^{3}}\\&#10;V=75cm^{3}\\\\\&#10;m=620\frac{g}{cm^{3}}*75cm^{3}=46500g
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PLEASE HELP PICTURE BELOW
seraphim [82]

Answer:

A.      

sorry if  it's wrong

Explanation:

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