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mamaluj [8]
3 years ago
13

Which of the following is NOT a characteristic of stars? A) Size B) temperature C) texture D) color

Chemistry
1 answer:
Lynna [10]3 years ago
7 0

Answer:

C

Explanation:

Characteristics used to classify stars include color, temperature, size, composition, and brightness.

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Is copper and silver nitrate a physical change or Chemical change
bekas [8.4K]

Explanation:

One of the most fascinating chemical experiments is the reaction between silver nitrate and copper wire in water. Characterised by fractal-like precipitates, this experiment is a stunning example of a simple redox reaction.

6 0
1 year ago
Describe how electrons move up and down energy levels (from ground state to an excited state, and vice versa).
Fittoniya [83]

When elements are heated/energized their electrons then absorb the energy and transition into a higher energy level known as the excited state. Then electrons then eventually fall back to their lowest state of energy or their ground state.

hope this helps :)p

3 0
3 years ago
Which option should a person avoid doing in order to better protect the quality of watersheds?
Norma-Jean [14]

"People should remove native plants around watersheds" option should a person avoid doing in order to better protect the quality of watersheds.

<u>Option: A</u>

<u>Explanation:</u>

Watershed is basically a source of large amount of water like river, sea, etc to another location like lake, ponds and stream.This is seen majorly during rainy season by water harvesting to supply further for farming, portable water plant, manufacturing sectors, enrich habitat to number of plants and animals, etc. Waterways face issues when erosion, pollutants and runoff of animal waste take place, which act as barrier for water flow, as it decreases the quality which affect aquatic animals life, reduce oxygen content. Native plants near watersheds is also a habitat for many animals and species thus it should not be removed until some major flaw occurs.

5 0
3 years ago
Empirical formula for compound of 2.17 mol N and 4.35 mol O
balu736 [363]

Answer:

Explanation:

ratio of  moles of N and O in molecule =

N / O = 2.17 / 4.35

1/2

empirical formula = NO₂

4 0
2 years ago
C-12 has 6 protons.<br> How many neutrons does C-13 have?<br> A. 6<br> B. 7<br> C. 13<br> D. 19
atroni [7]

Answer:

B-7

Explanation:

13-6=7

8 0
3 years ago
Read 2 more answers
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