2 years ago

The structure of an atom is

1 answer:

5 0

Answer:

Atoms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged).

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If the copper cube had a mass of 28.7 grams and a volume of 3.2 mL, what would its density be?

Otrada [13]

Answer:

ρ=m÷v

=28.7÷3.2

≈8.97 g/m³

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2 years ago

A sample in made of copper and zinc. It has a high melting point, can conduct electricity in a solid and liquid state, and is ma

Scrat [10]

The answer is C. Only metallic alloys are malleable and ductile. The other descriptions can apply to all 3 answers

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2 years ago

Which statement describes the differences between chemical reactions and nuclear decay rates? Chemical reaction rates vary, but

DanielleElmas [232]

Answer:

Answer the last one Nuclear decay rates vary, but chemical reaction rates are constant

Explanation:

Correct me if im wrong

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3 years ago

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NH3 +HCl ----> NH4Cl

moles of HCl used = (0.8 x 17.4) /1000= 0.0139 moles
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molar concentration is therefore= (0.0139/5) x1000 = 2.7 M

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3 years ago

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the area that stretches from the highest high-tide line on land out to he point of the continental shelf exposed by he lowest lo

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Is called the Intertidal zone

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