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ella [17]
3 years ago
11

Will mark brainliest if solved correctly.

Chemistry
2 answers:
Kamila [148]3 years ago
6 0

Answer:

The answers for the questions are in the picture.

rusak2 [61]3 years ago
4 0

Answer:0.25M

Moles

Explanation:

In a solution of 2.0 litres

The mole of kno3= reacting mass/molar mass

Reacting mass = 56

Molar mass =101

Substituting the values

Mole= 56/101*2

Mole 0.25M

Number 2

N= CV

C= concentration

V=volume

N= 3*2230/1000

N= 6690/1000

N= 6.69

N=6.7moles

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PolarNik [594]

Answer:

1.Magnetosphere

2.Liquid Outer core

3.Atmosphere

4.Lightening

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10.Lithosphere

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12.Longitude

Explanation:

The invisible field that protect us from solar radiation is called Magnetosphere.

This protective field is created by movement between solid inner core and earth's Liquid outer core.

The layer of gases is called atmosphere.

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Because of water earth looks Blue.

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Look for the latitude first ,horizontal line ...

8 0
3 years ago
Exercise while in space is important because it PREVENTS what?
dsp73

Answer:

bone loss and muscle deterioration

Explanation:

this helps the body keep thriving and bones strong and muscles in tact

8 0
4 years ago
If a substance changes from one phase to another, is it still same substance? why
shutvik [7]
When you boil water, you aren't changing the elements. You're just making water vapor. However, when you burn paper, it becomes carbon (mostly). So physical changes will not change the substance, only chemical changes will.
5 0
3 years ago
Which is larger CA or CA2+ and why?
Vika [28.1K]
Ca because it has a larger atomic radius.
3 0
3 years ago
Arrange ZN HG CU AU metals in order of decreasing activity with the most active first
Andrej [43]
  • AU ZN CU HG

Explanation:

hope it helps you

6 0
3 years ago
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