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ankoles [38]
3 years ago
7

Please answer this as soon as possible

Chemistry
1 answer:
nordsb [41]3 years ago
5 0
Burning is a chemical property so (c) for #1

Sodium has one valence electron in its 3rd orbit
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A chemist carefully measures the amount of heat needed to raise the temperature of a 894.0g sample of a pure substance from to −
astraxan [27]

Answer:

C = 0.2349 J/ (g °C)

Explanation:

Mass, m = 894.0g

Initial Temperature = −5.8°C

Final Temperature =  17.5°C

Temperature change = 17.5°C - (−5.8°C) = 23.3

Heat, H = 4.90kJ = 4900 J

Specific heat capacit, C = ?

The relationship between these quantities is given by the equation;

H = mCΔT

C = H / mΔT

C = 4900 / (894)(23.3)

C = 0.2349 J/ (g °C)

4 0
3 years ago
If 20 grams of aluminum react with 200 grams of bromide to form aluminum bromide and no aluminum is left after the reaction, but
Varvara68 [4.7K]
The answer is: 197 grams

Why?

All 20 grams of aluminum was used to form aluminum bromide. Only 177 grams of bromide were used to make aluminum bromide, since 23 grams were left over.

20 grams + 177 grams = 197 grams, so the answer is 197 grams.
8 0
4 years ago
Find the solution to the question
Evgesh-ka [11]

Answer:

B

Explanation:

FUN is not building block of matter.

4 0
2 years ago
True or False? When solid mixed with other solid, it changed in color, size and shape?
sergeinik [125]

Answer:

False

Explanation:

It becomes a heterogeneous mixture

8 0
3 years ago
Which atomic property is different in each isotope of an element?
Levart [38]
Elements that have different atomic mass
3 0
4 years ago
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