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Nonamiya [84]
3 years ago
7

20 Points!! 10 Each Points Please Help ASAP!! View Attached Image!! Will Mark Brainliest If All Are Answered!!

Chemistry
2 answers:
True [87]3 years ago
5 0

Answer:

18.B

19.B

20.D

21.A

Explanation:

emmasim [6.3K]3 years ago
3 0

Answer:

1.a 2.d 3.c 4.b

Explanation:

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the atom was thought to be indivisible. Explain the significance of Thomson's concept of the electron.
Ludmilka [50]

Answer:

Thomson's experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson's plum pudding model of the atom had negatively-charged electrons embedded within a positively-charged "soup.

4 0
3 years ago
1. A rock with a mass of 66.5g<br>occupies 23.0 cm. Density?​
telo118 [61]

Answer:

2.89 g/cm^3

Explanation:

Since density equals mass over volume (or also seen as d=\frac{m}{v} ), simply divide 66.5 grams by 23.0 cm. This will output an answer of 2.89 g/cm^3.

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3 years ago
Which of the following are NOT properties of an base
Sav [38]

Answer:

Reacts with salt to from an acid

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2 years ago
Which of the following would be one of the interacting parts in a weather system?
zhenek [66]

CLOUDS would be one of the interacting parts in a weather system.

6 0
3 years ago
The carbon atoms in saturated hydrocarbons ________. Group of answer choices contain a benzene ring contain at least one double
Aliun [14]

Answer:

Have only single bonds.

Explanation:

Hello,

In this case, we need to remember that saturation is a state at which a carbon chain contains no insaturations, that is neither double nor triple bonds such case are alkenes and alkynes, but saturations only which are characterized by the presence of single bonds between adjacent carbon atoms. Such is the case of ethane (CH₃-CH₃), propane (CH₃-CH₂-CH₃), butane (CH₃-CH₂-CH₂-CH₃) and so on.

Best regards.

4 0
3 years ago
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