2 years ago

What is the meaning of science?

Chemistry

2 answers:

boyakko [2]2 years ago

8 0

Answer:

Science is systematised body of organised knowledge.

skad [1K]2 years ago

4 0

The intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.

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Can anyone solve this?

Sonja [21]

Answer:

3P2O5:

P:6 O:15

5CO2

C:5 O:10

3C6H12O6

C:18 H:36 O:18

4C6H12

C:24 H:48

3Mg3(PO4)2

Mg:9 P:2 O: 8

4(NH4)2S

N:8 H:32 S:4

4 0

3 years ago

I need this please my brain hurts

GarryVolchara [31]

8.4 grams. I think but I’m not 100% sure

5 0

3 years ago

at 55 years what mass remains of a 200.0 g sample of a radioactive isotope with a half life of 10.0 years

Harman [31]

Answer:

4.419 g

Explanation:

55 years is 5.5 half lives

200 g * (1/2)^5.5 = 4.419 g

3 0

1 year ago

(WILL GIVE BRAINLESS )Complete the sentence describing Newton's third law of motion: For every action in one direction, O b ос O

Liono4ka [1.6K]

Answer:

An equal force acts in the opposite direction.

Explanation:

3 0

3 years ago

(b) A compound X contains carbon, hydrogen and oxygen only

faust18 [17]

Answer:

C2H4O

Explanation:

C H O

54.54/12 9.09/1 36.37/16

4.545 9.09 2.27

4.545/2.27 9.09/2.27 2.27/2.27

2.00 4.00 1

Empirical formula is C2H4O

3 0

3 years ago