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siniylev [52]
3 years ago
13

What best defines concentration​

Chemistry
2 answers:
zmey [24]3 years ago
7 0
When you focus on something
arsen [322]3 years ago
7 0

Answer:

Explanation:

Answer. In chemistry, concentration refers to the amount of a substance per defined space. Another definition is that concentration is the ratio of solute in a solution to either solvent or total solution. Concentration usually is expressed in terms of mass per unit volume.

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Hydrogen (H) and Beryllium (Be) are members of the same <br> a Group <br> b Period <br> c Neither
Solnce55 [7]

Answer:

C. Neither

Explanation:

According to the periodic table, Hydrogen is in group 1 and period 1. Beryllium is in group 2, period 2.

3 0
3 years ago
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What happens to the boiling point of hydrocarbon compounds when the number of carbon atom increases
kumpel [21]
The boiling points of alkanes increases with increasing number of carbons. This is because the intermolecular attractive forces, although individually weak, become cumulatively more significant as the number of atoms and electrons in the molecule increases.



So therefore your answer choice will increase. (B)
3 0
2 years ago
Why is photosynthesis essential for plant homeostasis?
nadya68 [22]
To make food for the plant
7 0
3 years ago
This equation is not balanced. Click on the coefficient we should change first.<br> help ASAP
horrorfan [7]

Answer:  The coefficient we should change first is for NO_{3}.

Explanation:

The given reaction equation is as follows.

Al + Ni(NO_{3})_{2} \rightarrow Al(NO_{3})_{3} + Ni

Here, number of atoms present on reactant side are as follows.

  • Al = 1
  • Ni = 1
  • NO_{3} = 2

Number of atoms present on the product side are as follows.

  • Al = 1
  • Ni = 1
  • NO_{3} = 3

To balance this equation, multiply Al by 2 and NO_{3} by 3 on reactant side. Also, multiply Al(NO_{3})_{3} by 2 and Ni by 3 on the product side.

Hence, the equation can be rewritten as follows.

2Al + 3Ni(NO_{3})_{2} \rightarrow 2Al(NO_{3})_{3} + 3Ni

Now, number of atoms present on reactant side are as follows.

  • Al = 2
  • Ni = 3
  • NO_{3} = 6

Number of atoms present on product side are as follows.

  • Al = 2
  • Ni = 3
  • NO_{3} = 6

Since, the atoms on both reactant and product side are same. Hence, it is now a balanced chemical equation.

Thus, we can conclude that the coefficient we should change first is for NO_{3}.

7 0
3 years ago
How much NaNO3 will dissolve into 100 g of Water at 35*C? *<br> 45 g<br> 100 g<br> 80 g<br> 150 g
VARVARA [1.3K]

Answer:

100g

Explanation:

8 0
3 years ago
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