3 years ago

The red balls represent _____ and have a positive charge.

1 answer:

4 0

The answer is protons. Neutrons have no charge and electrons have a negative charge so the positive charge must be protons.

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alisha [4.7K]

Answer:

1.3M

Explanation:

Convert from grams to moles:

molar mass of HCl = 1.01g(molar mass of H) + 35.45g(molar mass of Cl) = 36.46g HCl

1.2g HCl (1mol HCl/36.46g HCl)

= .0329 mol HCl

Molarity = mol/L (important formula for concentration)

Plug your values in:

Molarity = .0329mol/.025L

1.317M - but you used two significant figures in the question, so:

1.3M

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3 years ago

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aleksandrvk [35]

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C. liquid to a gas

Explanation:

I know this is right but I don't have an explanation

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