3 years ago

The specific heat of copper is 0.385 j/g°c which equation would you use

1 answer:

8 0

Since there's specific heat, you should use Q=mc△T. Depends on if this question also involves phase change or not, you might will need Lf (latent heat of fusion) or Lv (latent heat of vaporisation).

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Hello, I really need help in this. I don't understand. :(

leonid [27]

The answer is b, because if it gets colder then means more heat is exiting than it is entering.

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3 years ago

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How many pennies are in $2,020.20?

Nata [24]

Answer:

202,020 pennies

Explanation:

The amount of pennies in 1 dollar is 100.

Basically, you just multiply the whole dollar amount (2020) by 100 and then add 20 to find the amount of pennies.

(2020)(100)+20= 202,000+20= 202,020 pennies.

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3 years ago

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Gold has a molar (atomic) mass of 197 g/mol. consider a 2.47 g sample of pure gold vapor. (a) calculate the number of moles of g

adell [148]

N = given mass/ molar mass.
n = number of moles
given mass = 2.47 g
molar mass = 197 g/mol

n = 2.47 / 197
n = 0.01253 moles.
I'm sure you wanted to ask more than this. Just put some comments in. I can do the same.

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3 years ago

A factor that keeps a population size from growing too large is called a ______ _______.

Liula [17]

Answer:

limiting factor i think

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3 years ago

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Knowing what you know about the nucleus and the subatomic particles in the nucleus, what do you think is the charge of the nucle

iragen [17]

What I think is the charge of nucleus is the proton+neutron