2 years ago

What is the correct name for this formula: AI2O3?

1 answer:

5 0

Answer- A

Explanation- Because you have to look at the symbols and remember which symbol goes with each chemical, if you don't then you could get confused.

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Identify the type of reaction:

miskamm [114]

It’s #2 because I saw on edigunity 2020

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2 years ago

A 13.58 g sample of a compound contains 8.67 g of iron, Fe, 1.60 g of phosphorus, P, and oxygen, O. Calculate the empirical

antiseptic1488 [7]

Answer:

$Fe_3PO_4$

Explanation:

To do this, we find the moles of each element. We get around 0.155 moles of Fe, 0.051 moles of P, and 0.206 moles of O. We then divide each one by the smallest one (which is 0.051 moles of P). We then get 3 for Fe, 1 for P, and 4 for O. This correlates to the empirical formula of the compound.

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3 years ago

Is a sodium cation smaller or larger than a sodium atom

omeli [17]

A sodium cation is smaller than a sodium atom.

Hopefully this is right...

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2 years ago

Which system does the endocrine gland influence to fight infections

Fed [463]

Answer:

Thymus. This gland makes white blood cells called T-lymphocytes that fight infection and are crucial as a child's immune system develops

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2 years ago

3 Cu + 8HNO3 --> 3 Cu(NO3)2 + 2 NO + 4 H2O

Vilka [71]

Answer:

5 moles

Explanation:

From the coefficients of the equation, we know that for every 8 moles of nitric acid consumed, 4 moles of water are produced.

So, the answer is 9(4/8), which is 5 moles to 1 sf.

5 0

1 year ago