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netineya [11]
3 years ago
12

Water contrasts on freezing ?

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

No. When water first begins to cool down, it contracts. However, as it gets colder and eventually freezes, it begins to expand.

You can test this by freezing water in a water bottle: when you take it out of the freezer, the cap might have popped off or cracks may have formed in the sides of the bottle.

Answer: Water expands when frozen, not contracts.

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Which objects in space formed from the huge disk of ice and debris beyond the outer planets? Check all that apply. Pluto comets
Anni [7]

Answer: -

A solar nebula is a rotating cloud of gas and dust from which the sun and the planets formed.

A planetesimal is a small body from which planet originated in the early stages of development of the solar system.

Kupier belt is region of the solar system that is just beyond the orbit of Neptune and that contains bodies made mostly of ice. This is the region of the solar system that contains small bodies that are made mostly of ice.

Thus Pluto is formed from the huge disk of ice and debris beyond the outer planets. Comets originating from the Kupier belt are also composed of ice and debris.


7 0
3 years ago
Given the name select the correct formula for each ion compound
MariettaO [177]

Please provide more info

4 0
3 years ago
What is the difference between a rock and a mineral?
SVEN [57.7K]

Answer:

A rock is an inconsistent mixture of minerals, while mineral is "pure" and made  up of a precise combination of chemicals.

Explanation:

5 0
2 years ago
A chemical reaction yields 3 moles of lithium hydroxide (LiOH). How many grams of
grin007 [14]

72g

Explanation:

Given parameters:

Number of moles of LiOH = 3moles

Unknown:

Mass of LiOH = ?

Solution:

A mole of  substance is a unit used to make quantitative measures in chemistry.

It is the amount of substance that contains the avogadro's number of particles.

The mole is related to mass using the expression below;

    Mass of a substance = number of moles x molar mass

Molar mass of LiOH = 7 + 16 + 1 = 24g/mol

 Mass of LiOH = 3 x 24 = 72g

learn more:

Number of moles brainly.com/question/1841136

#learnwithBrainly

8 0
3 years ago
Why is saponification
max2010maxim [7]

Saponification is a process that involves conversion of fat or oil into soap and alcohol by the action of heat in the presence of aqueous alkali

5 0
3 years ago
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