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Norma-Jean [14]
3 years ago
5

Can y'all help me on number 10❤️

Chemistry
1 answer:
RoseWind [281]3 years ago
4 0
I believe the answer is A.
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If the distance between two objects of the same mass decreased the force of gravity between them would
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Answer:

The force of gravity between two objects will decrease as the distance between them increases.

Explanation:

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3 years ago
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A balloon is filled to a volume of 1.6 L at 278 K. The balloon is left outside overnight and the temperature has dropped to 253
german

Explanation:

Charles' law gives the relationship between the volume and the temperature of the gas. Mathematically,

Volume ∝ Temperature

i.e. \dfrac{V_1}{V_2}=\dfrac{T_1}{T_2}

We have, V₁ = 1.6 L, T₁ = 278 K, T₂ = 253, V₂=?

V_2=\dfrac{V_1T_2}{T_1}\\\\V_2=\dfrac{1.6\times 253}{278}\\\\V_2=1.45\ L

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3 years ago
Iron will most likely react with which of the following elements?
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Answer:

bromine (Br)

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5 0
3 years ago
Consider the reaction pathway graph below.
Alex17521 [72]
Hello!

The reaction that the graph represents is A. Exothermic because Hrxn=-167 kJ

To calculate Hrxn we apply the following equation:

Hrxn=Hproducts-Hreagents=-625kJ-(-458kJ)=-167kJ

Looking at the graph, and at the result of the calculations, we can see that the enthalpy of the products is lower than the enthalpy of the reagents, because the sign is negative. That means that the reaction releases energy in the form of heat and that the reaction is exothermic.

Have a nice day!
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4 years ago
Which of these is NOT a reason that scientists do experiments?
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Design a new procedure
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