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MA_775_DIABLO [31]
3 years ago
5

A soccer player kicks a ball 6.5 meters. How much time is needed for the ball to travel this distance

Chemistry
1 answer:
Ahat [919]3 years ago
8 0
It is 67 I think it is
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2 years ago
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A piece of wood burns to form ash. ____C_____ Water evaporates into steam. ____P_____ A piece of cork is cut in half. ____P_____
IceJOKER [234]

Answer:

A piece of wood burns to form ash - Chemical change

Water evaporates into steam - Physical change

A piece of cork is cut in half. __ Physical change

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Water is absorbed by a paper towel. _____Physical change

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Explanation:

Matter undergoes two types of changes: physical changes and chemical changes.

A physical change is one that affects only the physical properties of a substance such as colour, size, shape, etc., and in which no new substances are formed. Physical changes are easily reversible.

Chemical changes are changes which affect the chemical characteristics and properties of a substance such as reactivity, acidity, basicity, etc., resulting in the formation of new substances.

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A piece of wood burns to form ash - Chemical change

Water evaporates into steam - Physical change

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A bicycle chain rusts. _____Chemical change

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3 years ago
A gas exerts a pressure of 1.35 atm. What is the equivalent measures in mmHg?
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1.35atm(760mmHg/1atm)=1026mmHg
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3 years ago
Thermal energy is __________.
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Answer:

Thermal energy (also called heat energy) is produced when a rise in temperature causes atoms and molecules to move faster and collide with each other. The energy that comes from the temperature of the heated substance is called thermal energy.

Credit:

https://www.solarschools.net/knowledge-bank/energy/types/thermal

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Use the drop-down menus to complete the statement.
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