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REY [17]
2 years ago
13

Measuring Volume

Chemistry
1 answer:
Dvinal [7]2 years ago
7 0
Seems right, but if it’s just asking for one i would pick B
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Why is it difficult for hydrogen atoms to stick together
Rasek [7]

Answer:

So, the energy of two hydrogen atoms is lower when the two atoms are together than when the two atoms are apart; that is why they stay together.

Explanation:

6 0
3 years ago
The burning of a sample of propane
r-ruslan [8.4K]

Answer:

70.0°C

Explanation:

We are given;

  • Amount of heat generated by propane as 104.6 kJ or 104600 Joules
  • Mass of water is 500 g
  • Initial temperature as 20.0 ° C

We are required to determine the final temperature of water;

Taking the initial temperature is x°C

We know that the specific heat of water is 4.18 J/g°C

Quantity of heat = Mass × specific heat × change in temperature

In this case;

Change in temp =(x-20)° C

Therefore;

104600 J = 500 g × 4.18 J/g°C × (x-20)

104600 J = 2090x -41800

146400 = 2090 x

  x = 70.0479

     =70.0 °C

Thus, the final temperature of water is 70.0°C

7 0
3 years ago
Combustion of 6.90g of this compound produced 13.8g of CO2 and 5.64g of H2O. What is the empirical formula of the unknown compou
Alla [95]
The empirical formula for the unknown compound would be: C2H4O (2 molecules of Carbon, 4 molecules of Hydrogen, and 1 molecule of Oxygen)
4 0
3 years ago
Which of the following factors affects the amount of heat absorbed by a substance? (5 points) a. Shape of the substance b. Melti
Ainat [17]

Answer:

d. Specific heat capacity of the substance

8 0
3 years ago
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Helpppppppppppppppp?
Ivenika [448]

Answer: A

Explanation:

6 0
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