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alexandr1967 [171]
3 years ago
11

PLEASE HELP MEEE!!! A group of students performed an experiment in which they dropped a cube of metal into a graduated cylinder

of water. The initial temperature of the water was 25 °C. The mass of the water was 50 g
Aher energy in the form of heat was transferred to the water, its temperature was 35 "C. Based on the evidence, how much energy was transferred between the metal and the water?
2 cal
10 cal
50 cal
500 cal
Chemistry
1 answer:
lianna [129]3 years ago
7 0

Answer:

10 cal

Explanation:

No Explanation

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How many moles are in a 111.5 gram sample of sodium chloride, NaCl?
Katarina [22]

Answer: 1.91 moles

Explanation:

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2 years ago
This stadium can hold 100,000, or 1 x 10^5, people. The number of atoms in a grain of iron is about 1 x 10^18. Would you need 1 
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<h3>Answer:</h3>

1 x 10^13 stadiums

<h3>Explanation:</h3>

From the question;

1 x 10^5 people can fill 1 stadium

We are given,  1 x 10^18 atoms of iron

We are required to determine the number of stadiums that  1 x 10^18 atoms of iron would occupy.

We are going to assume that a stadium would occupy a number of atoms equivalent to the number of people.

Therefore;

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Then, to find the number of stadiums that will be occupied by  1 x 10^18 atoms;

No. of stadiums = Total number of atoms ÷ Atoms in a single stadium

                           =  1 x 10^18 atoms ÷  1 x 10^5 atoms

                          =  1 x 10^13 stadiums

Therefore,  1 x 10^18 atoms of iron would occupy  1 x 10^13 stadiums

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What change would increase the amount of solid solute able to be dissolved in liquid water?
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Bonjour,

increasing temperature.
for many solids dissolved in liquid water, the solubility increases with temperature.
3 0
2 years ago
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