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blsea [12.9K]
3 years ago
6

What is the lowest temperature that a subtance can reach

Chemistry
1 answer:
Damm [24]3 years ago
3 0

Answer: Theoretically: Absolute Zero

Explanation:

which is about -273.15 degrees Celsius

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An object has a mass of 0.0124kg and a volume of 1893mm3. What is its density in grams per cubic centimeter?
anyanavicka [17]

Answer:

6.25×10⁻⁶ g / cm³

Explanation:

Density is the relation between mass and volume as this formula shows.

Density of a compound = Mass of the compound / Volume of compound

In the values, we were given:

0.0124 kg / 1983 mm³ = 6.25×10⁻⁶ kg/mm³

This number means that in a volume of 1 mm³ of compound, the mass of it occupies 6.25×10⁻⁶ kg. Let's make a rule of three:

1 cm³ = 1×10⁻³ mm³

In 1 mm³ we have 6.25×10⁻⁶ kg of compound

So in 1×10⁻³ mm³ we would have (1×10⁻³ mm³ . 6.25×10⁻⁶ kg) / 1 mm³ =

6.25×10⁻⁹ kg

Now let's convert the kg to g.

1 kg  = 1000 g

6.25×10⁻⁹ kg . 1000 = 6.25×10⁻⁶ g

Finally density is : 6.25×10⁻⁶ g / cm³

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Is mud a mixture, solution, colloid, or suspension?
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If element X has 65 protons, how many electrons does it have
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In an atom there are the same number of protons as electrons to start with. The answer would be 65 aswell.

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Chemistry is another word for science just  higher level.the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.

Explanation:

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