Question 6 of 10

Chemistry

1 answer:

Levart [38]2 years ago

3 0

Answer:

C. Solids made of molecules

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What is the average atomic mass of einsteinium? what are its common isotopes?

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Answer:

Boom

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Why is an element's atomic mass not listed as a whole number on the periodic table?

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Answer: it represents an average mass of all isotopes

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Question 3 of 10

Nookie1986 [14]

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A change in a substance where one or more new substances form

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2 years ago

A piece of rubber has a mass of 495 kg and a volume of 355 liters. Will it float in water, which has a density of 1.0 g/mL?

hoa [83]

Compare the density of the rubber to water. If it is less that 1 g/mL then it floats in the water.

You must compare density in the same units. So convert to g/mL

$( \frac{495kg}{355L} )*( \frac{1000g}{1kg} )*( \frac{1L}{1000mL} ) = 1.39 g/mL$

The rubber does not float in water.

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When an atom loses electrons it undergoes ____.

Karo-lina-s [1.5K]

When a atom loses electrons it becomes a ion

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3 years ago

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