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3 years ago

HELP ME PLEASEE!!!! BRAINLIEST FOR CORRECT ANSWER NO COPY AND PASTE. CLICK ON THE IMAGE

Chemistry

2 answers:

a_sh-v [17]3 years ago

8 0

Conversion of energy describes that energy cannot be created or destroyed, when work is done, energy is changed from one form to another.

An example of conversion of energy is when a book is on a shelf it has gravitational potential energy, if it falls of the shelf it will have kinetic energy.

Though due to the process through which energy transfers take place not being 100% efficient, energy is sometimes lost to the surrounding and energy gets more spread out, air resistance and friction.

Some types of energy:

Gravitational
Kinetic energy
Strain energy
Nuclear energy
Internal Energy
Sound energy
Electric energy.

madreJ [45]3 years ago

3 0

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The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another. This means that a system always has the same amount of energy, unless it's added from the outside. ... The only way to use energy is to transform energy from one form to another.

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Give reasons :

Elza [17]

Ans 1:

Ammonia is not collected over water since it is highly soluble in water

Ans 2:

Ammonia gas is lighter than air and hence collected by the downward displacement of air.

Ans 3:

The carbon dioxide is very cold as it comes out of the extinguisher, so it cools the fuel as well.

Ans 4:

H₂SO₄ is not used in the preparation of carbon dioxide Because the calcium sulphate formed is insoluble in water. So, CO₂ will not form.

Ans 5:

The opening of hard glass test tube is slanted down during laboratory preparation of ammonia gas because Ammonia gas is not collected in the gas jar by upward displacement of air because it is lighter than air

Ans 6:

Magnesium is reactive enough to be combusted and oxidized in a reaction with carbon dioxide:

The magnesium strip burns brightly in the air, but continues to burn in the carbon dioxide environment

-TheUnkownScientist

3 0

3 years ago

Read 2 more answers

The proton has a mass of?

aliina [53]

The relative mass is 1

3 0

3 years ago

An example of a property that could change only is a chemical change occurs is

Inga [223]

Color, heat/temperature, light, it could also start to bubble

5 0

3 years ago

There is always some between any surfaces that are in contact with each other

shutvik [7]

Answer:

Friction that is the answer pls brainlist me

6 0

2 years ago

Compounds A and B are colorless gases obtained by combining sulfur with oxygen. Compound A results from combining 6.00 g of sulf

sukhopar [10]

Answer:

1.5

Explanation:

Given that :

Compound A and B are formed from Sulfur + Oxygen.

Compound A :

6g sulfur + 5.99g Oxygen

Compound B:

8.6g sulfur + 12.88g oxygen

Comparing the ratios :

Compound A:

S : O = 6.00 : 5.99

S/0 = 6.0g S / 5.99g O

Compound B :

S : O = 8.60 : 12.88

S / O = 8.60g S / 12.88g O

Mass Ratio of A / mass Ratio of B

(6.0g S / 5.99g O) ÷ (8.60g S / 12.88g O)

(6.0 g S / 5.99g O) × (12.88g O / 8.60g S)

(6 × 12.88) / (5.99 × 8.60)

= 77.28 / 51.514

= 1.50017

= 1.5

4 0

4 years ago