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N76 [4]
3 years ago
6

PLEASE ANSWERRRRRRRRRRRRRRRRRRRRRRR

Chemistry
2 answers:
Usimov [2.4K]2 years ago
8 0
C because it’s just leaning against the wall it’s not moving
Leokris [45]2 years ago
4 0
D as acceleration means that the thrust force is bigger than the friction force, in this case, air resistance.
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Predict what would happen if the ammonium system described in the experiment was heated.
Stella [2.4K]
Answer is: concentration of products increases (ammonia nad water).
Chemical reaction: heat + NH₄⁺ + OH⁻ ⇄ NH₃ + H₂<span>O.
</span>According to Le Chatelier's Principle, the position of equilibrium moves to counteract the change, because heat is increased, system consume that heat, so equilibrium is shifted to right, by decreasing concentration of reaactants and increasing concentration of product.
7 0
3 years ago
Marcus measured the masses and volumes of samples of four different substances, and he calculated their densities. The table sho
Zina [86]

<u>Given:</u>

Calculated density values-

Aluminum = 2.7 g/cm3

Copper = 9.0 g/cm3

Iron = 7.9 g/cm3

Titanium = 4.8 g/cm3

Unknown sample mass = 9.5 g

Sample volume = 2.1 cm3

<u>To determine:</u>

The identity of the unknown sample

<u>Explanation:</u>

'Density' is a physical parameter which can be used to identify the nature of the unknown substance.

Density = Mass/Volume

For the unknown sample

Density = 9.5 g/2.1 cm3 = 4.52 g/cm3

This matches closely with the calculated density of titanium

Ans: The unknown substance is made of titanium

4 0
2 years ago
Here is my question only answer if you understand this question​
sasho [114]
1- false
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3- true
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Hope it helps :)
8 0
3 years ago
A student asks a class the following question, “Polyethylene has a relatively short formula (C2H4) while nylon has a long formul
Verdich [7]

Answer:

ok

Explanation:

6 0
3 years ago
Read 2 more answers
Plants have functions that make them a(n) ?????????? part of the world. ^Insignificant or vital
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I don't fully understand your question, but I believe that plants have functions that are vital to the planet. They take sunlight, make it into food for themselves, and release oxygen that we need to survive.
5 0
3 years ago
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