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Papessa [141]
3 years ago
9

PLZ HELP

Chemistry
1 answer:
riadik2000 [5.3K]3 years ago
8 0
Too many to know in the world.
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Which of these equations is balanced? a. H2SO4 + 2Al → Al2(SO4)3 + H2 b. 2KCl + Pb(NO3)2 → 2KNO3 + PbCl2
Lapatulllka [165]
The answer is B, you just check if it is the same on the left and right side

A:
Left side - Right side
2xH - 2xH
1xS - 3xS
4xO - 12xO
2xAl - 2xAl

Therefore A is not correct

B:
Left side - right side
2xK - 2xK
1xCl - 1xCl
1xPb - 1xPb
2xN - 2xN
6xO - 6xO

B is therefore correct as both sides add up
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3 years ago
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A pound is approximately 0.45 kilogram. A person weighs 87 kilograms. What is the person’s weight, in pounds, when expressed to
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Answer:

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Write out the stepwise ka reaction for the diprotic acid h2so3
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<span>This is a 2 step dissociation reaction. But to find \(\large K_a = \frac{[prodcuts]}{[reactants]}\)</span>
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Answer:

B) the kinetic energy of the particles in the spoon will decrease as the thermal energy moves from the soup to spoon.

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