2 years ago

What makes this lever effective?

Chemistry

1 answer:

ser-zykov [4K]2 years ago

7 0

D because the rock is making it lean less to the man so that means the rock has more mass

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An ostrich runs north in a straight line for 21 meters. She then turns around and runs 25 meters back toward her nest (south) on

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The ostrich runs 21 N then goes back by 25 S

The displacement is -4 S

21 - 25 = -4

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In a metabolic pathway, succinate dehydrogenase catalyzes the conversion of succinate to fumarate. the reaction is inhibited by

Pani-rosa [81]

Competitive inhibitor

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If 3 moles of a compound use 12 J of energy in a reaction, what is the Hreaction in kJ/mol

igomit [66]

Answer:

$\Delta _RH=4x10^{-3}\frac{kJ}{mol}$

Explanation:

Hello,

In this case, the molar enthalpy of reaction is obtained by dividing the involved energy by the reacting moles:

$\Delta _RH=\frac{12J}{3mol} =4\frac{J}{mol}$

Thus, it is important to notice that the compound "uses" the energy, it means that it absorbs the energy, for that reason the sign is positive. Moreover, computing the result in kJ/mol we finally obtain:

$\Delta _RH=4\frac{J}{mol}*\frac{1kJ}{1000J} =4x10^{-3}\frac{kJ}{mol}$

Best regards.

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Which alkaline earth metal has the highest ionization energy? Refer to the periodic table.

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