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Charra [1.4K]
3 years ago
5

How many base units exist?

Chemistry
1 answer:
Oksi-84 [34.3K]3 years ago
4 0

Answer:

7

Explanation:

second

metre

kilogram

ampere

kelvin

mole

candela

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For the reaction A(g)
zubka84 [21]

Answer:

Yes

Explanation:

By definition, the equilibrium constanct, Kc, for the reaction A ⇒ 2B is

= [A]^1 / [B]^2

Substitute [A] = 4 and [B] = 2 in the equation,

[A]^1 / [B]^2

= 4^1 / 2^2

= 1

= Kc

So yes the reaction is at equilibrium.

6 0
2 years ago
How many molecules are in 100 g of C6H1206?
rjkz [21]

Answer: 100 grams of glucose represents 0.55 moles .

Explanation:

8 0
3 years ago
Which part of an investigation is only found in an experimental investigation?
pantera1 [17]

Answer:

The correct answer is control group.

Explanation:

A group used in a study or in an experiment, which does not get treatment by the scientists and is used as a foundation to determine the functions of the other tested subjects is known as the control group. The control group is only found in an experimental investigation.  

The group in an experiment, which gets the variable being examined is known as an experimental group. The comparison of an experimental group is done with a control group in order to find the answers in an experiment.  

3 0
3 years ago
How many moles of helium are 8.84×1024 atoms of He?
insens350 [35]

Answer:

14.68 moles of He

Explanation:

To do this, just remember Avogadro's Constant or Avogadro's number. This constant tells us how many units ( in this case atoms) there are in a mole of ANY type of substance.

Avogadro's constant is 6.022140857 × 10²³ units per mole.

Now that we know how many atoms there are in 1 mole, we can use this as our conversion factor.

8.84 x 10²⁴ atoms of He →  moles of He

8.84\times10^{24} atoms of He\times\dfrac{1moleofHe}{6.022140857\times10^{23}atomsofHe}=14.68molesofHe

So the answer would be:

14.68 moles of He

4 0
3 years ago
What does the word distal mean?
erica [24]

There are two meanings to the word "Distal"

   Anatomy

  1.    situated away from the center of the body or from the point of attachment.

 

      Geology

    2.   relating to or denoting the outer part of an area affected by geological activity.

       

5 0
3 years ago
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