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Alexandra [31]
2 years ago
10

Which layer of Earth's atmosphere contains the highest concentration of ozone?

Chemistry
1 answer:
Yuliya22 [10]2 years ago
5 0

Answer: Middle Stratosphere

Explanation:

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1.Which of the following elements will form an ion with a +2 charge?
Gala2k [10]

Answer:

Calcium (Ca)

Explanation:

If you look in your reference table next to each element in the top right corner it shows their charge whether it be positive, negative or zero

5 0
3 years ago
A student measures the sides of a piece of paper to determine the area of the paper. His measurements are: 5.70 cm length and 10
Basile [38]

Answer:

58.254

Explanation:

4 0
3 years ago
The modern periodic table is arranged in order of increasing. True or Fase
Inga [223]

Answer:

The modern periodic table is arranged on order of increasing atomic number.

Explanation:

Modern periodic law states that the position of an element in the periodic table is a function of its atomic number.Atomic number is the number of electon(s) in a neutral atom and it determines the number of electon in the outermost shell of an atom called Group of an atom and also atomic determines the number of electonic shells called  Period

this is opposed to the old periodic table in which elements were arranged based on their mass number

5 0
3 years ago
2LiOH + HNO3 → 2LINO3 + H2O<br> 1<br> Is it balanced
LiRa [457]

Answer:

no need to balance.....

3 0
3 years ago
If 36.2g of Acetic Acid (HC2H302) was dissolved in 300. mL of water, what is the
uysha [10]

Answer:

2.01 M

Explanation:

Step 1: Calculate the moles of acetic acid (HC₂H₃O₂)

The molar mass of acetic acid is 60.05 g/mol. We will use this data to calculate the moles corresponding to 36.2 g of acetic acid.

36.2g \times \frac{1mol}{60.05g} = 0.603mol

Step 2: Convert the volume of solution to liters

We will use the relation 1000 mL = 1 L. We assume that the volume of solution is that of water (300 mL)

300mL \times \frac{1L}{1000mL} = 0.300L

Step 3: Calculate the molarity of the solution

The molarity is equal to the moles of solute (acetic acid) divided by the liters of solution

M = \frac{0.603mol}{0.300L} = 2.01 M

7 0
3 years ago
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