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pantera1 [17]
4 years ago
8

How do solids liquids and gases differ at the molecular level?

Chemistry
1 answer:
Rasek [7]4 years ago
6 0
Solids are packed together closely, liquids are farther apart but still relatively close, and gases are very far apart with lots of space.
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Compare the mass of the Mg ribbon with the mass of the magnesium oxide. Notice that the the mass of the magnesium oxide is great
Artist 52 [7]

Answer:

Magnesium oxide is a binary compound of magnesium and oxygen while magnesium ribbon consists only of magnesium atoms.

Explanation:

The burning of magnesium in oxygen is a chemical change. It produces magnesium oxide having greater mass than magnesium ribbon. The greater mass results from the fact that the chemical reaction has added another element to the sample- oxygen. The mass of magnesium ribbon is the mass of magnesium atoms alone but in magnesium oxide, we consider the masses of magnesium and oxygen atoms making magnesium oxide heavier than magnesium ribbon.

4 0
3 years ago
A sunscreen preparation contains 2.60 % by mass benzyl salicylate. If a tube contains 6.0 oz of sunscreen, how many kilograms of
Marrrta [24]

Answer : The mass of benzyl salicylate needed to manufacture 350 tubes of sunscreen are, 1.55 kg

Explanation :

As we are given that a sunscreen preparation contains 2.60 % by mass benzyl salicylate. That means, 2.60 grams of benzyl salicylate present in 100 g of solution.

First we have to convert the given mass from oz into kg.

Conversion used:

1 kg = 35.274 oz

or,

1oz=\frac{1}{35.274}kg

So,

6oz=\frac{6oz}{1oz}\times \frac{1}{35.274}kg=0.1701kg

Now we have to determine the mass of benzyl salicylate.

As, 100 g of solution contains mass of benzyl salicylate = 2.60 g

So, 0.1701 kg of solution contains mass of benzyl salicylate = \frac{2.60g}{100g}\times 0.1701kg=0.00442kg

Now we have to determine the mass of benzyl salicylate are needed to manufacture 350 tubes of sunscreen.

Mass of benzyl salicylate in 350 tubes of sunscreen = 0.00442 kg × 350

Mass of benzyl salicylate in 350 tubes of sunscreen = 1.55 kg

Thus, the mass of benzyl salicylate needed to manufacture 350 tubes of sunscreen are, 1.55 kg

6 0
4 years ago
Which best describes the process that occurs when liquid water becomes<br> ice?
garri49 [273]

Answer:

Freezing

Explanation:

When a liquid goes to a solid, this process is called freezing.

7 0
3 years ago
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Various pieces of safety equipment are used in the lab to provide protection against injury. Which of the following pieces of la
Aleks [24]

Answer:

C

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When a chemical substance gets in contact with an individuals eye in a laboratory, there is an area called the eye wash station that is used for washing off these substances. This station is important because when a chemical substance enters tour eye(s) you need to wash it off within 15 minutes after the injury has occurred.

3 0
3 years ago
Intrusive igneous rocks _____.
Lady bird [3.3K]
Crystallize below earths surface
8 0
4 years ago
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