1 year ago

Help with science question

Chemistry

1 answer:

shutvik [7]1 year ago

8 0

Answer:

(4) Inner core. (5) magma. (6) crust (7) Convection current. (8) energy waves

Explanation:

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What element has 28 electrons when electrically neutral

muminat

Answer:

nickel

It also tells you the number of electrons that the element has in its outside shells. If the atomic number of nickel is 28 then every atom of nickel has 28 protons in its nucleus and 28 electrons outside the nucleus.

Explanation:

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3 years ago

Determine the mass of 5.20 moles of C6H12 (gram-formula mass = 84.2 grams/mole).

muminat

Hello!

Determine the mass of 5.20 moles of C6H12 (gram-formula mass = 84.2 grams/mole).

We have the following data:

m (mass) = ?

n (number of moles) = 5.20 moles

MM (Molar mass of C6H12) ≈ 84.2 g/mol

Now, let's find the mass, knowing that:

$n = \dfrac{m}{MM}$

$5.20\:\:\diagup\!\!\!\!\!\!\!mol = \dfrac{m}{84.2\:g/\diagup\!\!\!\!\!\!\!mol}$

$m = 5.20*84.2$

$\boxed{\boxed{m = 437.84\:g}}\end{array}}\qquad\checkmark$

_______________________

I Hope this helps, greetings ... Dexteright02! =)

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3 years ago

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The is the rate which a substance undergoes a chemical change

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Reaction Rate is the rate at which a substance undergoes a chemical change.

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3 years ago

What is the mass of H2O

Dovator [93]

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The exact molecular mass is 18.01528 g/mol

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A sample of (NH4)2SO4 contains 0.750 mole. what is the mass of the sample

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