3 years ago

What is the rule for determining the mass of an atom

1 answer:

Elena-2011 [213]3 years ago

5 0

Answer:

For any given isotope, the sum of the numbers of protons and neutrons in the nucleus is called the mass number. This is because each proton and each neutron weigh one atomic mass unit. By adding together the number of protons and neutrons and multiplying by 1, you can calculate the mass of the atom.

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Given the incomplete equation representing a reaction:

Akimi4 [234]

O is what should go in the blank. O stands for Oxygen.

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3 years ago

If you pour water into a hot metal pan, the water will absorb heat energy from the pan. Will the water come to the same temperat

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Yes

Explanation:

It is heating up both

4 0

2 years ago

The names and chemical formulae of some chemical compounds are written in the first two columns of the table below. Each compoun

charle [14.2K]

Answer:

See below

Explanation:

Name Formula Major species

Zinc iodide ZnI₂ H₂O(ℓ), I⁻(aq), Zn²⁺(aq),

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Nickel(II) iodide NiI₂ H₂O(ℓ), I⁻(aq), Ni²⁺(aq)

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3 years ago

1.25 cm is the same distance as ? 12.5 Km 12.5 mm 12.5 dm 12.5 m

pogonyaev

Answer:

12.5mm

Explanation:

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so you need to multiply the 1.25 by 10 to get it in mm.

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Please!!!!!!!!!!!!!!!!!!!!!!!

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Answer:

yesir

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yesir yesir yesssirrrr

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