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mr Goodwill [35]
3 years ago
5

Mr. Bullis wants to know if he gives teachers candy, it will make them smile more. He gives half the teachers candy and the othe

r half get nothing. He then records the number of times the teachers smiled.
Experimental Group:

Control Group:
Chemistry
1 answer:
mote1985 [20]3 years ago
5 0

Answer:

the experimental group would be the teachers who recieved the candy

control group would be the teachers who dont get any candy

<em>Explanation:</em>

experimental group is the group that receives the test variable being tested in this case the variable being the candy

and the control group is the group who doesn't receive the variable

purpose of having a control is to rule out other factors which may influence the results of an experiment.

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astraxan [27]

Answer: The reaction is endothermic.

Explanation:

Endothermic reaction : It is a type of chemical reaction where the energy is absorbed from the surrounding. In the endothermic reaction, the reactant have less energy than the energy of products

In endothermic reaction, enthalpy terms is located on the reactant side.

Example: A+B+energy\rightarrow C+D

Exothermic reaction : It is a type of chemical reaction where the energy is released into the surrounding. In the exothermic reaction, the energy of reactants are more than the energy of products

In exothermic reaction, enthalpy terms is located on the product side.

Example: A+B\rightarrow C+D+energy

8 0
3 years ago
What volume of methanol should be used to make 1.25 L of a 21.0% by volume solution?<br> ___ mL
Pie

Answer:

  262.5 mL

Explanation:

21% of the 1.25 L volume is methanol, so the required amount of methanol is ...

  0.21 × 1250 mL = 262.5 mL

4 0
3 years ago
I don't understand any of these
77julia77 [94]
Ok well whats the questions
3 0
3 years ago
What is the hypothesis for Is riding the bus or riding a bike a quicker way to get to school?
OleMash [197]
U can assume that riding the bus is a faster way to get to school because it is capable of a faster speed than a bicycle
5 0
3 years ago
How do I solve this?
Xelga [282]

Answer:

Explanation:

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7.95/6.02 = 1.32

10^22/10^23 = 10^-1

1.32 x 10^-1 is your answer

7 0
3 years ago
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