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4 years ago

How is the way a mixture is combined different from how a compound is combined?

1 answer:

7 0

Mixture is composed of molecules of different types. A compound can only be separated through chemical means. While a compound is a pure substance that contains 2 or more elements chemically combined together while a mixture are formed when two substances are added together without chemical bonds being formed.

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The element that belongs to period 2 and group 7

Marta_Voda [28]

Answer:

Halogens or Nitrogen.

Explanation:

4 0

3 years ago

An irregularly shaped piece of magnesium with a mass of 11.81 g was dropped into a graduated cylinder partially filled with wate

dlinn [17]

Answer:

The answer is

Explanation:

The density of a substance can be found by using the formula

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

From the question

mass of magnesium = 11.81 g

volume = 6.80 mL

The density of the metal is

$density = \frac{11.81}{6.80} \\ = 1.73676470...$

We have the final answer as

Hope this helps you

7 0

4 years ago

Materials that don't allow electrons to flow freely are called _____.

EastWind [94]

The answer is conductors

You welcome : )

4 0

4 years ago

Read 2 more answers

Which of the following decomposition reactions is/are correct?

qwelly [4]

<span>A) 2NaOH -> 2Na + O2 + H2
is not correct since Na is unstable

B) 2NaOH -> 2Na + H2O + 1/2O2
is not correct since Na is unstable

C) 2NaOH -> Na2O + H2O
is correct since N2O is stable

D) 2NaOH -> 2Na + H2O2
is not correct since Na is unstable</span>

7 0

3 years ago

Read 2 more answers

What kind of waves have more energy than others?

jeyben [28]

Answer:

Gamma ray

Explanation:

Radio waves have low energy photons, microwave photons have a little more energy than the radio waves, infrared photons have more energy than the microwave, then visible, ultraviolet, X-rays, and, the most energetic of all is the gamma-rays

7 0

4 years ago