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Radda [10]
3 years ago
13

Which statements are correct about Avogadro’s constant?

Chemistry
1 answer:
abruzzese [7]3 years ago
5 0

Answer:

Explanation:

I,II, and III

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( QUESTION) Physical properties are-
lana66690 [7]

Answer:

The correct answer is A. traits you can assess using your 5 senses (see, hear, smell, touch, hear)

Explanation

for example, physical property, dealing with color, solubility, odor, hardness, density, melting point, boiling point, etc..!

hope this helps <3

5 0
3 years ago
Would you want the starting reactants in an airbag system to have higher density or a lower density
scZoUnD [109]

Answer:

Explanation:

The de velopment of airbags began with the idea for a system that would ... of deaths or serious injuries decrease when an airbag and seat belt are used, ... An airbag must be able to deploy in a matter of milliseconds from the initial ... as hard as stone-- not the protective cushion you would want to crash into! ... Reactants ...

8 0
3 years ago
3H2 + blank, reaction arrow, 2NH3
Helga [31]

The complete equation representing the synthesis reaction for the formation of ammonia is: 3 H₂ + N₂ ⇒ 2 NH₃

<h3>What is a synthesis reaction?</h3>

It is a reaction in which 2 or more substances combine to form 1 product.

Let's consider the following incomplete synthesis reaction.

3 H₂ + ____ ⇒ 2 NH₃

According to Lavoisier's law, the mass and the elements must be conserved in a chemical reaction. So, since there is nitrogen to the right, the missing element to the left must be nitrogen. Molecular nitrogen is diatomic.

The complete reaction is:

3 H₂ + N₂ ⇒ 2 NH₃

The complete equation representing the synthesis reaction for the formation of ammonia is: 3 H₂ + N₂ ⇒ 2 NH₃

Learn more about synthesis reaction here: brainly.com/question/16560802

#SPJ1

7 0
2 years ago
2. If 5.4 g Al are reacted with excess HCI, how many moles of H2 will be produced?
Tanya [424]

Answer:

0.3 moles of H2 will be produced.

Explanation:

           Balanced reaction: 2 Al + 6 HCl → 2 AlCl3 + 3 H2

Given Al mass = 5.4 g, we know Mr of Al is 27

Using the formula:

moles = mass / Mr

moles of Al = 5.4 / 27

moles of Al = 0.2 moles

Here we see that "2" molar mass before Al; so in this reaction, "1" molar mass will have [(0.2)/2] = 0.1 moles. He see "3" molar mass before H2, therefore moles of H2 is (3 * 0.1) = 0.3 moles.

5 0
2 years ago
6. The illustration below represents the Grand Canyon..
andrew-mc [135]
Hmm, I am not quite sure but if I am probably your best bet so I'd go with, either B or D.
5 0
3 years ago
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