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larisa86 [58]
3 years ago
7

Please Help ASAP 100 points! Students set up a controlled experiment. They put five crickets in each of three identical containe

rs. They set one container to 15C, one to 20C and one to 25C. Then they count the number of cricket chirps in each container during 1 hour. What are the TWO constants in this experiment? A: The number of crickets in each container. B:The temperature of each container. C: The number of cricket chirps. D: The kind of containers used.
Chemistry
2 answers:
Solnce55 [7]3 years ago
3 0

Explanation:

They put five crickets in each of three identical containers. They s ... to 15°C, one to 20°C, and one to 25°C. Then they count the number of cricket chirps in each container

vladimir2022 [97]3 years ago
3 0

Answer:

A and C.

Explanation:

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How to solve a balanced equation
geniusboy [140]

Explanation:

To balance a chemical equation, there are so many approaches to solve the problem.

A balanced chemical equation is one that obeys the law of conservation of matter.

According to this law "matter is neither created nor destroyed by atoms are just rearranged in chemical reaction".

This implies implies that equal number of atoms must be on both sides of the equation.

      There are two main approaches to balancing chemical equation;

  • Inspection
  • mathematical equation

We can inspect the equation and affix the proper coefficients to combining species.

Mathematically, we establish simple solvable algebraic equations to find the number of respective coefficients that will balance the equation:

 For example:

          H₂     +      O₂    →     H₂O

mathematically;

           aH₂     +      bO₂    →     cH₂O

  conserving:

         H :   2a  =  2c

         O:    2b  = c

 let a = 1

      c = 1

      b = \frac{1}{2}

multiply by 2 to give;

   a = 2, b = 1 , c= 2

               2H₂     +      O₂    →     2H₂O

learn more:

Balanced equation brainly.com/question/9325293

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7 0
3 years ago
1.If 6 moles of KNO3 should be produced in a reaction, but only 4.78 mol KNO3 are produced, what is the % yield?
irakobra [83]

Answer:

79.7%

Explanation:

Percent yield of reaction is defined as the ratio between theoretical yield of a reaction and actual yield obtained.

In the problem, theoretical yield are 6 moles of KNO₃ and actual yield are 4.78 moles. Thus, percent yield is:

4.78 mol / 6 mol × 100 =<em> 79.7%</em>

3 0
3 years ago
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