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alexandr1967 [171]
3 years ago
13

N

Chemistry
1 answer:
andrey2020 [161]3 years ago
8 0

Answer:

yes

Explanation:

the definition for time is correct, the definition for speed is incorrect

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What is the oxidation state of Hydrogen in H20<br><br> +2<br> +1<br> -2<br> -1
xeze [42]
<h3>What is the oxidation number of oxygen in H2O?</h3>

Oxygen almost always has an oxidation number of -2, except in peroxides (H 2 O 2) where it is -1 and in compounds with fluorine (OF 2) where it is +2. Hydrogen has an oxidation number of +1 when combined with non-metals, but it has an oxidation number of -1 when combined with metals.

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6 0
2 years ago
ILL GIVE YOU BRAINLIST !!! HAVE TO GET IT RIGHT !!
inysia [295]

Answer: The 3rd and 6th bullet point is the quantitative data.

Explanation: Quantitative data is expressed by NUMBERS and Qualitative data is expressed by WORDS. The 3rd and 6th one is correct because they both use numbers to compare how much time hummingbirds spent feeding on nectar.  

4 0
3 years ago
There are diffrent types of cells for every job in your body. How do we refer to those cells that develop differently?
kotykmax [81]

<u>Answer:</u>

Those cells that develop differently are referred  to Specialised Cells.

<u> </u><u>Explanation:</u>

Specialised cells are the one that is assigned to perform a specific role. Every specialised cell in the body is assigned to do their own job. The special features in them help them to perform their functions effectively.

Examples of specialised cells are- red blood cells (they are responsible to carry oxygen in the body), nerve cells (specialises in transmitting electrical signals) and muscle cells (brings body parts together).  

3 0
3 years ago
At which instance contain 1 molecule of substances from following?
Black_prince [1.1K]

Answer:

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6 0
2 years ago
2. What is the total mass of Chlorine in ZnCl,?
Vedmedyk [2.9K]

Answer:

35.5

Explanation:

35.5.

relative moleculer mass

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