3 years ago

Does the model below represent a mixture or a substance ?

Chemistry

1 answer:

Vikentia [17]3 years ago

4 0

Answer:

substance

Explanation:

A mixture is when two or more <u>different</u> atoms/molecules are together, but not joined.

A substance is when the <u>same </u>atom/molecule is in a group together.

In this example, it is a substance because it is comprised of the same molecule not joined all together. If you wanted a mixture, other colored atoms/molecule (e.g. add green atoms) would change it to this property.

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A liquid has a density of 4.0 oz/cup. Express the density of the liquid in lb/gallon.

Julli [10]

Answer:

3.99998575239 pounds per gallon (US)

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2 years ago

Ions of an element (elements with different charges) contain different numbers of what

Vadim26 [7]

Answer:

an ion is an element that has different numbers of protons and electrons

Explanation:

An ion is positive when it has more protons than electrons and negative when it has more electrons than ions.

(Hope this was helpful!) :)

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3 years ago

Why is this reaction considered to be exothermic? a Because energy difference A is greater than energy difference C. b Because e

Pani-rosa [81]

Answer:

we would need a bit more info for this

Explanation:

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4 years ago

What is the volume of an object with a density of 2.6 g/cm³ and a mass of 30.5g?

inessss [21]

Answer:

The answer is

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

$volume = \frac{mass}{density}$

From the question

mass of object = 30.5 g

Density = 2.6 g/cm³

The volume is

$volume = \frac{30.5}{2.6} \\ = 11.7307692...$

We have the final answer as

Hope this helps you

5 0

3 years ago

An atom x contains 14 protons, 13 electrons, and 12 neutrons, and atom y contains 14 protons, 14 electrons, and 12 neutrons. wha

Vika [28.1K]

<span>a. x and y are atoms of the same element.

If both atoms contain the same amount of protons, they are always the same element.
</span>

7 0

3 years ago

Read 2 more answers