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3 years ago

14

What is the standard unit of density?

1 answer:

sweet-ann [11.9K]3 years ago

6 0

Answer:

1 gram.

Explanation:

Density is commonly expressed in units of grams per cubic centimetre. For example, the density of water is 1 gram per cubic centimetre, and Earth's density is 5.51 grams per cubic centimetre. Density can also be expressed as kilograms per cubic metre (in MKS or SI units).

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What makes an acid acidic? a) Number of protons in a molecule b) Temperature c) Chemical structure d) Phase

charle [14.2K]

Answer:

C.

Explanation:

Chemical structure

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2 years ago

True or false, when a material loses thermal energy, it usually contracts.

Brums [2.3K]

Answer:

True

Explanation:

Whenever something loses thermal energy, it contracts and becomes smaller.

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The radius of an indium atom is 0.163 nm. If indium crystallizes in a face-centered unit cell, what is the length of an edge of

adoni [48]

<u>Answer:</u> The edge length of the unit cell is 0.461 nm

<u>Explanation:</u>

We are given:

Atomic radius of iridium = 0.163 nm

To calculate the edge length, we use the relation between the radius and edge length for FCC lattice:

$a=2\sqrt{2}R$

Putting values in above equation, we get:

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Hence, the edge length of the unit cell is 0.461 nm

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3 years ago

olga2289 [7]

What does matter mean?

Object which has mass and occupies space

What does atom mean?

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What does molecule mean?

A small group of atoms bonded together.

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Converts 800kg into ng

elixir [45]

Answer:

yes

Explanation:

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2 years ago