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Sonja [21]
3 years ago
9

A plant uses carbon dioxide and water to form food and oxygen. Why is this a chemical change? The mass of the plant increases gr

eatly. The properties of water and food are same. The plant increases in height as food is produced. The properties of carbon dioxide and oxygen are different.
Chemistry
2 answers:
pantera1 [17]3 years ago
3 0
A chemical change is defined as something that changes the substance of something (such as the creation of water from hydrogen and water), and can be figured out if chemical or physical based on different changes and properties. Your answer will be D because these are two different elements (compounds in case of CO2) that combine to form a different substance, thus changing the identity of the substance. 
Black_prince [1.1K]3 years ago
3 0
Your answer will be D hope this help and can i get brainlist???????
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10 atoms of aluminum reacts with 6 molecules of oxygen gas to produce aluminum oxide. 4 Al + 3 O2 ––> 2 Al2O3 What is the exc
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The excess reactant is Aluminum.

<u>Explanation:</u>

We have to write the balanced equation as,

4 Al+ 3 O₂ → 2 Al₂O₃

According to the molar ratio 4: 3, from the given balanced equation, we can say that 4 atoms of Al reacted with 3 molecules of oxygen.

Given that 10 atoms of aluminum reacts with 6 molecules of oxygen, as per the ratio only 8 atoms of Aluminum is required to react with 6 molecules of oxygen, so excess reactant is Aluminum.

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3 years ago
When Rutherford ran his gold foil experiment, he expected to see results like those in the Plum Pudding Atom simulation. Instead
DENIUS [597]

Rutherford's result can not be explained on the basis of the plum pudding model because of the fact that, since some alpha particles were deflected, the atom must contain a small region with a strong electric charge.

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Learn more: brainly.com/question/730256

4 0
2 years ago
Is it true river flows from areas of low ground to areas of high ground​
melomori [17]
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5 0
3 years ago
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How is bacteria on mars counted as life but a heartbeat on earth not?
Sever21 [200]

Answer:

It is considered life, but that doesn’t have to do much with abortion.

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The question is how much this life is worth. This becomes more a question of ethics, but I think we can all agree a human life is worth a lot. So killing humans is wrong. What about somewhat intelligent animals? Well, killing them just for the fun of it or because you can is wrong as well I think.Most people think that’s okay, although some people will disagree and become vegetarians.

Insect life is worth less, and killing an insect is seen by most people as okay as long as you have even a small reason for it (like being irritated by a buzzing fly).

And all the way on the bottom are bacteria. They are not conscious, even though alive.

Sorry about the first answer. I didn't look at the question carefully since I wasn't wearing my glasses.

If this doesn't help than I'm sorry.

7 0
3 years ago
How are sublimation in evaporation similar
diamong [38]

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