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Sergeeva-Olga [200]
3 years ago
6

Which element is most plentiful in Earth's crust?

Chemistry
1 answer:
dem82 [27]3 years ago
5 0

Answer:

Oxygen is the most contain in earth but you asked in a,b,c and d. So I'll choice A. aluminium.

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True or false: For a spontaneous redox reaction, the products are stronger oxidizing and reducing agents than the reactants.
Tomtit [17]

Answer: False

Explanation: The stronger oxidizing agent, and stronger reducing agent are the reactants.

6 0
3 years ago
An object resting on top of a building has the most potential energy ....
velikii [3]

Answer:

when it stops

Explanation:

potential energy is pretty much energy being stored when an object is inactive or not moving

I believe this is right-

4 0
3 years ago
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Many atomic dimensions are expressed in angstroms (A). (1A = 1 x 10-8cm). What is the angstrom equal to in terms of the SI units
Nataly [62]

Answer:

1 Å = 1.0 × 10⁻¹ nm

1 Å = 1.0 × 10² pm

Explanation:

Angstrom is the unit of the length which is equal to one ten-billionth of the metre or 10⁻¹⁰ m. It is represented by the symbol is Å .

Angstrom is not part of SI system of the units, but it is considered as a part of metric system.  

Angstrom is used often in natural sciences as well as technology in order to express the sizes of atoms / molecules, and the lengths of the chemical bonds, etc.

1 Å = 10⁻¹⁰ m

1 nm = 10⁻⁹ m

1 pm = 10⁻¹² m

So,  

1 Å = 1.0 × 10⁻¹ nm

1 Å = 1.0 × 10² pm

7 0
3 years ago
Hi! Can I have someone that is In the lgbtq+ talk to me, I need some advice...
Kisachek [45]

Answer:

what's the matter?  im an ally... and fully support the lgbtq+ so i might have some advice?

Explanation:

4 0
3 years ago
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At 25.5°C a gas has a volume of 125mL. What would be the volume be if the temperature increased to 50°C
kolezko [41]

Answer:

245 mL

Explanation:

Please see the step-by-step solution in the picture attached below.

Hope this answer can help you. Have a nice day!

7 0
3 years ago
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