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3 years ago

Four properties of water are listed.

Chemistry

2 answers:

Andrei [34K]3 years ago

6 0

Answer: 1 and 3

Explanation:

Physical properties refer to those properties of a substance that doesn't involve a chemical change or chemical reaction. They are physically observable properties of a substance. For example, we do not need any chemical reaction to observe the fact that water is odourless in its pure state. Also, we only need a thermometer and no chemical reaction to observe it's boiling point. Physical observation tells us that the liquid turns into vapour at that temperature. This is confirmed by observing the loss in volume of the liquid

kobusy [5.1K]3 years ago

4 0

Answer:

It reacts with metals to form metal hydroxide and hydrogen gas. it s an chemical property and it decomposes to H2 and O2 is also another chemical property property. because in these reaction H2O has changed to something else hence are called chemical property.

Explanation:

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Find the mass in kilograms of the liquid air that is required to produce 600L of oxygen. In normal condition, 1L of liquid air h

IgorC [24]

Mass in kilograms of liquid air required = 0.78 kg

Given that

1 Litre of liquid air contains 1.3 grams of oxygen ( air )

Determine the amount of liquid air in Kg

volume of air given = 600 L

mass of liquid air required = x

1 litre = 1.3 grams

600 L = x

∴ x ( mass of liquid air ) = 1.3 * 600

= 780 g = 0.78 kg

Hence we can conclude that Mass in kilograms of liquid air required = 0.78 kg

Learn more about liquid air : brainly.com/question/636295

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liubo4ka [24]

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3 years ago

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tester [92]

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3 years ago

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Do you think one mole of the different substances has the same amount?

vagabundo [1.1K]

It's because of Avagadro's number.

It is known as Avagadro's constant too.
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2 years ago

Read the word equation: “Propane gas plus oxygen gas produces __________.”

Dmitriy789 [7]

Answer:

Propane gas plus oxygen gas produces water and carbon dioxide.

Explanation:

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