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3 years ago

Describe two advantages and two disadvantages of building your 3D model with modeling clay. (5 points)

Chemistry

1 answer:

marishachu [46]3 years ago

8 0

Answer:

A model or simulation is only as good as the rules used to create it. It is very difficult to create an entirely realistic model or simulation because the rules are based on research and past events. The main disadvantage of simulations is that they aren't the real thing.

Explanation:

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What is one use for halogens?

Ahat [919]

The correct answer is D. Light bulbs

Explanation:

In chemistry, halogens are a group of elements characterized for being non-metallic elements (they cannot conduct heat or electricity), and for forming salts. In terms of uses, halogens had been used mainly as part of disinfectants, as well as, in the production of light bulbs and lamps. This last application implies small quantities of halogens such as iodine are used in the mechanism of bulbs or lamps and this is a better option than other elements as it increases the life of the bulb and makes bulbs to a whither color. According to this, one use of halogens is light bulbs.

8 0

3 years ago

How many atoms of K are present in 195.49 grams of K? 3.0110 × 1024 6.0220 × 1024 1.1772 × 1026 4.5797 × 1027

Ierofanga [76]

<h2>Hello!</h2>

The answer is: $3.0110x10^{24}$

First, we need to look for the K molecular mass:

$K=39,098 g/mol$

Also, we need to remember that 1 mol of a compound or element is equal to $6,022x10^{23}$ of that compound.

From the statement, we are asked to calculate how many atoms of K are present in 195,49 of K.

So, doing the calculations, we have:

$195,49g*\frac{1mol}{39,08}*\frac{6,022x10^{23} atoms}{1 mol K} =3,0110x10^{24} \\$

So, we have $3.0110x10^{24}$ atoms of K in 195,49 grams of K.

Have a nice day!

3 0

3 years ago

What is the the formula for the compound cobalt(II) phosphate.

Lena [83]

Cobalt(II) has a charge of 2+
Phosphate has a charge of 3-

Because it's an ionic compound, you will need to take the charge and make them subscripts.

The formula for cobalt(II) phosphate is Co₃(PO₄)₂

Your answer is
$\sf{Co_3(PO_4)_2}$

3 0

4 years ago

What would you need to lower to change a gas to a liquid

IrinaVladis [17]

The temperature or the average kinetic energy of the molecules

5 0

4 years ago

What is the molar mass of Cr3(AsO4)2?<br> g/mol

ioda

433.8267 g/mol according to Chemical aid

7 0

3 years ago