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Aloiza [94]
3 years ago
13

Which substance is an example of a colloid?

Chemistry
1 answer:
Semmy [17]3 years ago
8 0

Answer:

Milk would be the only colloid

The sand and water, tomato juice and sugar and water are all known as suspensions (It consists of large particles mixed or suspended in a solution)

Explanation:

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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
By definition 12 grams of carbon-12 must contain how many atoms?
krek1111 [17]
It is defined as the amount of a substance that contains as many particles as there are atoms in 12 grams of pure carbon-12. So, 1 molecule contains 6.022×10^23 elementary entities of the substance.

Hope that helps
5 0
3 years ago
The process though which animals and plants produce offspring
ki77a [65]

Answer:

reproduction

Explanation:

can be asexual or sexual

7 0
2 years ago
Identify the activity that belongs in the field of chemistry.
SVEN [57.7K]
D. All of the above. Developing medicine, analyzing compounds and producing new product such as plastic all have to deal with chemistry. 
3 0
3 years ago
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Leviafan [203]

Answer: b

Explanation:

By adding heat you are adding more energy

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