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BlackZzzverrR [31]
3 years ago
6

Can a physical or chemical change the amount of matter present

Chemistry
1 answer:
dezoksy [38]3 years ago
5 0

Extensive properties, such as mass and volume, depend on the amount of matter being measured. Intensive properties, such as density and color, do not depend on the amount of the substance present. Physical properties can be measured without changing a substance's chemical identity.

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2. How much heat is released when 432g of water cools down from 710C to 180C?
nadya68 [22]
The heat released by the water when it cools down by a temperature difference AT

is Q = mC,AT

where

m=432 g is the mass of the water

C, = 4.18J/gºC

is the specific heat capacity of water

AT = 71°C -18°C = 530

is the decrease of temperature of the water

Plugging the numbers into the equation, we find

Q = (4329)(4.18J/9°C)(53°C) = 9.57. 104J

and this is the amount of heat released by the water.
7 0
3 years ago
Why do solids maintain their shape, whereas fluids do not?
Vinvika [58]
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3 0
3 years ago
Read 2 more answers
What substance can act as catalysts in the body?
pickupchik [31]

Answer:

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Explanation:

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8 0
2 years ago
Define density and mass
KengaRu [80]

<u>density</u> is a measure of mass per volume. <u>mass</u> is both a property of a physical body and a measure of its resistance to acceleration.

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6 0
3 years ago
How many grams of sodium are needed to produce 12.5g of sodium oxide
Hatshy [7]

Answer:

25 possibly

Explanation:

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If someone else comes up with a more convincing argument listen to them

4 0
3 years ago
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