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3 years ago

Which is an example of a chemical change

Chemistry

2 answers:

kondaur [170]3 years ago

7 0

Answer: C) baking a cake

Explanation: I said that because A & B are examples of physical change and D & E makes no sense to me. You could’ve just searched it too but it’s C ✨

jonny [76]3 years ago

4 0

The answer is baking a cake.

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What 2 solutions could help restore the ecosystem back to normal?

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3 years ago

0.378g grams of a compound is made up of 0.273g of Mg and 0.105g nitrogen. Find its empirical formula.

Harrizon [31]

Answer:

The empirical formula of the compound is $Mg_3N_2$ .

Explanation:

Mass of magnesium in compound = 0.273 g

Mass of nitrogen in the compound = 0.105 g

Moles of magnesium = $\frac{0.273 g}{24.305 g/mol}=0.0112 mol$

Moles of nitrogen = $\frac{0.105 g}{14.0067 g/mol}=0.00750 mol$

Form empirical formula divides the lowest value of moles of an element present with all the moles of elements present.

Magnesium $=\frac{0.0112 mol}{0.00750 mol}=1.5$

Nitrogen $=\frac{0.00750mol}{0.00750 mol}=1$

The empirical formula of a compound:

$Mg_{1.5}N_1=Mg_{\frac{15}{10}}N_1=Mg_{15}N_{10}=Mg_3N_2$

The empirical formula of the compound is $Mg_3N_2$ .

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3 years ago

Help me

Valentin [98]

Answer:

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Explanation:

When you look at a map of plates, only South American forms a boundary with the African plate out of those specific plates

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3 years ago

Read 2 more answers

The thioketal product of a certain reaction is given below. draw the structure of:

SVETLANKA909090 [29]

https://images.app.goo.gl/NnQUnwKUPa7d2nAt5 go here to get to get your anwser

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3 years ago

Carbon dioxide and water is produced when a hydrocarbon combines with ____________________.

Kaylis [27]

They combine with oxygen atoms, I think.

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4 years ago