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Llana [10]
3 years ago
15

A sodium atom can easily lose an electron. What happens to this electron?

Chemistry
1 answer:
meriva3 years ago
4 0

Answer:

A.it is converted into thermal energy

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What is the answer to this?
Vesnalui [34]

Answer:

spring

Explanation:

cause i just took le test U-U

5 0
3 years ago
The freezing and thawing action of water affects a rock by?
Alex Ar [27]
<span>The water soaks in the cracks of rocks, freezes and expands breaking the rock apart.</span>
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3 years ago
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13. What is the symbol for Enthalpy change?
OverLord2011 [107]

Answer:

Explanation:

13 ) symbol of enthalpy change = Δ H .

14 ) enthalpy change is nothing but heat absorbed or evolved .

During fusion enthalpy change

Δ H .= m Lf , m is mass and Ls is latent heat of fusion

During evaporation, enthalpy change

Δ H .= m Lv , m is mass and Lv is latent heat of evaporation

during temperature rise , enthalpy  change

Δ H = m c Δ T

In case of gas , enthalpy change can be calculated by the following relation

Δ H = Δ E + W , Δ E is change in internal energy , W is work done by gas.

15 ) When enthalpy change is negative , that means heat is released to the environment .So reaction is called exothermic .

when heat is absorbed enthalpy change is positive . Reaction is endothermic.

5 0
3 years ago
Which is an example of chemical weathering?
kobusy [5.1K]

Answer:

b. the layer of oxide formed on statues made of metal

Explanation:

Chemical weathering is a process whereby rocks are disintegrated or weathered causing a chemical reaction thereby leading to change in the parent rock constituents .

In chemical weathering a new substance is usually formed after the weathering takes place.

From the question the layer of statue made by metal will likely form oxides of those metals. Example Silver will react with oxygen to form an entirely new substance like silver(i)oxide.

7 0
3 years ago
The velocity (speed) of an object was determined to be 45 miles per
Ahat [919]

Answer: 72.58 km/hr

Explanation:

\frac{45 miles}{1 hour}×\frac{1 km}{0.62 miles} = 72.58 km/hr

4 0
2 years ago
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