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Blababa [14]
3 years ago
7

Which of the following are examples of chemical energy being released or stored? (2 points)

Chemistry
1 answer:
vitfil [10]3 years ago
3 0
A boy eating a orange to survive because it’s going in his stomach and the sun heating a rock because Heat from the sun causes rock to crack or buckle from pressure caused by its atoms' increasing speed.
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I NEED HELP PLEASE, THANKS!
Liono4ka [1.6K]
Just need some point sorry
3 0
3 years ago
Please help!! A lot of points!!
Artist 52 [7]
Mean: the average. you have to add the values of the numbers and then divide by the amount of numbers there are. a common mistake to avoid is forgetting to divide the numbers at the end or subtracting them instead of adding.

mean: the middle number. you would first need to order the numbers from least to greatest. a common mistake to avoid is finding the middle number before ordering it from least to greatest

these two can also be commonly mistaken for one another because of the similar spelling.
7 0
3 years ago
Which of the following compounds has the highest boiling point?1. F22. NaF3. HF4. ClF
sergey [27]

Answer:

HF

Explanation:

Hf has hydrogen bonding which is the strongest intermolecular forces. The stronger the IM forces, the higher the boiling point.

7 0
3 years ago
Helium gas in a cylinder is under 1.12atm pressure at 25.0C. What will be the pressure if the temperature increases to 37.0C?
Irina18 [472]

Answer:

p_2=1.17atm

Explanation:

Hello!

In this case, considering that the Gay-Lussac's law allows us to relate the temperature-pressure problems as directly proportional relationships:

\frac{p_2}{T_2} =\frac{p_1}{T_1} \\\\

Thus, for the initial pressure and temperature in kelvins the final temperature in kelvins, we compute the final pressure as:

p_2=\frac{p_1T_2}{T_1} \\\\p_2=\frac{1.12atm*310.15K}{298.15K}\\\\p_2=1.17atm

Best regards!

7 0
3 years ago
Help, please!! If an object with a mass of 4.2 kg accelerates at 2.6 m/s2, what was the force exerted?
Paha777 [63]
10.92N

Force = mass x acceleration
4.2kg x 1.6m/s^2 = 10.92N
6 0
3 years ago
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