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Harrizon [31]
2 years ago
9

How can we use properties to identify unknown minerals?

Chemistry
2 answers:
tiny-mole [99]2 years ago
8 0

Answer:

<em>NAMING THE MINERALS</em>

Explanation:

Anni [7]2 years ago
6 0

Answer:

BY NAMING THE MINERALS :>

Explanation:

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As a gas changes to a solid, energy<br> A. is not used.<br> B. is released.<br> C. is absorbed.
pogonyaev

Answer:

B

Explanation:

Energy is released, when a gas changes to solid

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I have been stuck on this for a while I know you work it out through Hess's law but I can't seem to have the equations balanced
katovenus [111]

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7 0
2 years ago
How does the behavior of the water molecules change as the pan of water is heated?
VladimirAG [237]
The behavior of the water molecules change as the pan of water is heated, As the water is heated, the water molecules move faster and farther apart. The molecules change as the water is heated and the water molecules move faster and farther.<span>
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5 0
3 years ago
Lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample contains 0.0011% Pb by mass. How m
Shalnov [3]

Lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample contains 0.0011% Pb by mass. 13.6 × 10³ ml water contains 150 mg of Pb.

<h3>How to calculate the mass of solution ? </h3>

Given percentage of Pb present in the sample solution is 0.0011%

That means 0.0011 grams of Pb present in the 100g of solution.

So,

= \frac{0.150\ \text{g Pb} \times 100\ \text{g water}}{0.0011\ \text{g of Pb}}

= 13.6 × 10³ g water

<h3>What is Density ? </h3>

The mass per unit volume is called density. Density is represented as D or ρ.

It is expressed as:

\rho = \frac{m}{V}

where,

ρ = Density

m = mass of the object

V = Volume of object

Now put the value in above expression we get

\rho = \frac{m}{V}

1\ g/ml = \frac{13.6 \times 10^3}{V}

V = 13.6 × 10³ ml

Thus from the above conclusion we can say that Lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample contains 0.0011% Pb by mass. 13.6 × 10³ ml water contains 150 mg of Pb.

Learn more about the Density here: brainly.com/question/1354972

#SPJ4

6 0
1 year ago
According to the modern atomic model, electrons in an atom are always
babymother [125]
The electrons always orbit around the nucleus, forming what is called an electron cloud. :)
8 0
3 years ago
Read 2 more answers
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