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MaRussiya [10]
3 years ago
9

Magnesium carbonate decomposition on heating to form magnesium oxide and carbon dioxide. how many grams of magnesium oxide will

be formed if 20 grams of magnesium

Chemistry
1 answer:
KIM [24]3 years ago
3 0
This is how you would do it. set up the rxn. balance, in this case you didn't need to. make a grid and cancel out units.

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What is the name of a solution whose concentration of solute is equal to the maximum concentration that
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Answer:

g

Explanation:

7 0
3 years ago
Please and thank you
Virty [35]

3.8mL of 0.42 phosphoric acid is required.

Reaction

2H3PO4 + 3CaCL3 → Ca3(PO)4 + 6HCl

moles CaCl2 =0.16 mol/L x0.010 L = 0.0016 mol

moles of H3Po4

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= 0.00106 mol

V of H3PO4 = 0.0016/0.42 = 0.0038L = 3.8mL

V of H3PO4=3.8mL

To know more about calculation in milliliters refer to:-

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Neon is a gas made up of only one type of atom. Which term best describes neon
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Neon is an element because it is a pure atom
8 0
3 years ago
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A solution of H2SO4(aq) with a molal concentration of 4.80 m has a density of 1.249 g/mL. What is the molar concentration of thi
Naddika [18.5K]
Imagine we have <span>mass of solvent 1kg (1000g)
According to that: </span>molality =n(solute) / m(solvent) =\ \textgreater \  4.8m = 4.8mole / 1kg
= 4.8 mole * 98 g/mole = 470g
m(H2SO4) = n(H2SO4)*Mr(H2SO4) =\ \textgreater \=\ \textgreater \  Molarity = 4.8 mole / 1.2 L = 4 M m(H2SO4)  which is =<span>470g

</span><span>m(solution) = m(H2SO4) + m(solvent) = 470 + 1000 = 1470 g
d(solution) = m(solution) / V(solution) =>
=> 1.249 g/mL = 1470 g / V(solution) =></span>
Molarity = n(solute) / V(solution) =\ \textgreater \
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3 years ago
What relationship do you see between an electronic configuration of an element to its most common ion formed?
ZanzabumX [31]
An ion is an atom that has lost or gained an electron so the relation ship you would see would be a negative or a positive one depending on if it gained or lost an electron.<span />
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3 years ago
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