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Naya [18.7K]
3 years ago
7

20 Which of these statements about plants are true?

Chemistry
1 answer:
solong [7]3 years ago
6 0

Answer:

C) 2 and 4 only

Explanation:

plants are the producers in a food chain

plants use sunlight for photosynthesis

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Guys help me out please ​
kifflom [539]

Answer:

See explanation

Explanation:

A net ionic equation shows only the chemical species that are involved in a reaction, while a complete ionic equation also includes the spectator ions(Khan Academy).

From the species shown in the image we can write the molecular equation, ionic equation and net ionic equation and also identify the spectator ions.

Chemical equation: KX + BY --------> BX + AY

Ionic Equation; X^- + A^+ + B^+ + Y^- -----> BX + A^+ + Y^-

Spectator ions;  A^+ and Y^-

Net Ionic Equation; X^- + B^+ ------> BX

7 0
2 years ago
Which option is an example of a chemical property?
bulgar [2K]
Reactivity
Hope it helps!
7 0
3 years ago
Read 2 more answers
What is the percent of O in CO2
zmey [24]

72.71 . simple google search, you shouldnt waste points

5 0
3 years ago
Read 2 more answers
5. There is no water cycle where it is cold.<br> O true<br> O false
Archy [21]

Answer:

False

Explanation:

There is a water cycle wherever there is water. If it is cold, the water cycle will just be very slow.

5 0
3 years ago
Among the different types of scientific knowledge ______ are likely to be modified or discarded most frequently. Long ago, in th
Tresset [83]

During a scientific study a hypotheses is generally modified or discarded

so for first blank the answer is hypotheses

Now in case of phlogiston theory it was assumed that when a substance catches fire it evolve certain substances known as phlogiston which was later on discarded as there is no such particle. Infact a substane undergoing oxidation may gain weight

Hence in second blank the answer is new evidence didn’t support it,

4 0
3 years ago
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