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Vikentia [17]
3 years ago
5

What is chemical change

Chemistry
1 answer:
Igoryamba3 years ago
8 0

Answer:

Chemical change is a chemical process that occurs when a substance combines with another to create an entirely new substance, this process is also called chemical synthesis

Explanation:

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Your lab partner told you that he measured out 25.0 mL of the unknown acid solution. But he actually went above the line on the
Sav [38]

Answer:

Final calculated molarity of the unknown acid be  lower than the actual concentration.

Explanation:

Volume required unknown acid = V= 25.0 mL

Volume actually measure was more than V that is = V'

V' > V

Molarity of the solution is the moles of compound in 1 Liter solutions.

Molarity=\frac{\text{Mass of compound}}{\text{Molar mas of compound}\times Volume (L)}

As we can see from the formula that molarity is inversely proportional to the volume of the solution.

Molarity\propto \frac{1}{Volume}

  • Molarity of solution decreases with increase in volume
  • Molarity of solution Increases with decrease in volume.

We have added more volume than required which will be increase the volume of solution and the molarity of the solution will lower than the actual value.

6 0
3 years ago
The average density of whole milk is 1.034 g cm ^3. What is it’s density in lb gal ^-1?
Goshia [24]
You will need to look up some conversions of gram to lbs

1 gram = 0.00220462262 pounds


1 mL = 0.000264172052 US gallons

and mL to gal

1.035 g / cm^3 x 0.0022 lbs / 1 gram x 1 mL / 0.000264 gal
7 0
3 years ago
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What are some ways to prevent heat energy loss in matter?
Lera25 [3.4K]

Answer:

Use less heat in your house.

Explanation:

You have blankets in your house, huddle up for a good movie together.

5 0
3 years ago
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Consider the following representation of a reaction mechanism.
Stells [14]

The rate law depends on only A because it is the reactant in the rate-determining step.

<h3>What is the rate law;</h3>

The rate law is a representation of the rate of reaction. The fast reaction is  E+B ------> A+ D. The slow reaction is A + A ----->C + E. The overall reaction is A + B ------> C + D.

We know that the rate law depends  only on the  the slow reaction hence the rate law depends on only A because it is the reactant in the rate-determining step.

Learn more about the rate law:brainly.com/question/4222261

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4 0
2 years ago
Balance Reaction<br><br> Al(s) + HCl(aq) —&gt; AlCl3 + H2
musickatia [10]

Answer:

2 Al + 6 HCl ⇒ 2 AlCl₃ + 3 H₂

3 0
2 years ago
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