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3 years ago

How are protons, neutrons be, and electrons similar?

Chemistry

2 answers:

Blababa [14]3 years ago

8 0

Answer:

This is how

Explanation:

<em>Protons and neutrons have approximately the same mass, but they are both much more massive than electrons (approximately 2,000 times as massive as an electron). The positive charge on a proton is equal in magnitude to the negative charge on an electron.</em>

lord [1]3 years ago

4 0

Answer: They are all subatomic particles that make up an atom.

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gregori [183]

Answer:

Its a physical

theres no chemical properties involved.

Explanation:

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3 years ago

What’s the mass of a empty glass measuring cup

viktelen [127]

1 empty cup is equal to 8 OZ
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3 years ago

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3 years ago

What is the correct formula for combining Mg2+ and Br1+

True [87]

Answer: The correct formula is $MgBr_2$

Explanation:

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.

Here magnesium is having an oxidation state of +2 called as $Mg^{2+}$ cation and bromine $Br^{-}$ is an anion with oxidation state of -1. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral $MgBr_2$ .

The cations and anions being oppositely charged attract each other through strong coloumbic forces and form an ionic bond.

6 0

3 years ago

Why does tin oxide weigh more than tin?

Oxana [17]

Answer:

Explanation:

The mass of the actual tin will remain constant; however I assume you are comparing the mass of the reactant, tin, with the mass of the products. The increase in mass stems from the oxides of tin present due to its reaction with oxygen in the air:

Sn(s) + O2(g) → SnO2(s)

By working out the atomic mass of the tin and the relative formula mass of tin oxide, you can see why there is a mass increase; 119:151. As you can see here, for every 119g of tin reacted, there will be 151g of tin oxide, hence why you think the mass of the tin increased (by 32g).

Hope this helped!

4 0

3 years ago