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Vera_Pavlovna [14]
2 years ago
15

One mole of which substance contains a total of 6.02 x 1023 atoms? (I need help please.)

Chemistry
1 answer:
Korolek [52]2 years ago
8 0

Answer:

Oxygen

Explanation:

One mole of atoms of oxygen has a mass of 16 g, as 16 is the atomic weight of oxygen, and contains 6.02 X 1023 atoms of oxygen.

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What is the difference between a physical change and a chemical change?
nordsb [41]
A physical change doesn't change what the substance is. In a chemical change where there is a chemical reaction, a new substance is formed as well as new energy.
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3 years ago
How many grams of HNO3 it is required to play 8.75gr N2O<br> 4ZN + 10HNO3-4ZN ( NO3 ) 2 + N20 + 5H2O
Y_Kistochka [10]
Molar mass

 HNO₃ = 63.02 g/mol

N₂O = 44.013 g/mol

The balanced equation is :

<span>4 Zn + 10 HNO₃  = 4 Zn(NO₃)₂ + N₂O + 5 H₂O
</span>
10 * 63.02 g HNO₃-----------> 44.013 g N₂O
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hope this helps!
4 0
4 years ago
Diffusion is a type of active transport
Rudiy27

Answer:

True

Explanation:

Diffusion is an active process that requires a cell to expand a great deal of energy. ... Diffusion through ion channels is a form of active transport. False. Passive transport uses ATP to move molecules against their concentration gradient.

4 0
3 years ago
HELLPPPPP MEEMEMEMEME​
alukav5142 [94]

Its the third answer

6 0
3 years ago
a gap in the rock layer due to erosion from no rocks being deposited.HELP FAST PLEASE!?!?!?!?
Allushta [10]

a gap in the rock layer due to erosion or from no rocks being deposited

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fossil that record the shape and structure of an organism

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the preserved remains or traces of a once living organism.

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sediments spread in all directions until they thin out or hit a barrier.

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age of rock compared to the ages of rock layers.

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words:

1.absolute age

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3.fossil

4.principle of lateral continuity

5.principle of original horizontally

6.principle of superposition

7.relative age  

8.trace fossil

9. unconformity

10.uniformitarianism

Answer is 9,10,2,6,3,8,4,5,7,1

All my answers were correct on this one

6 0
4 years ago
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