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mr_godi [17]
3 years ago
9

How is the preodictable arranged by atomic mass, coloms , and rows

Chemistry
2 answers:
bearhunter [10]3 years ago
5 0

answer:an arrangement of elements in columns, based on a set of properties that repeat from row to row

Explanation:

hope this helps love <3

marta [7]3 years ago
5 0

Answer:

I dont get it

Explanation:

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2) What is the concentration of NaCl in a solution prepared by diluting 56.98 ml of 0.5894 M stock
RSB [31]

Answer:

The NaCl concentration will be 0.03 M.

Explanation:

Given data:

Initial volume = V₁ = 56.98 mL (56.98/1000 = 0.05698 L)

Initial concentration = M₁= 0.5894 M

Final volume = V₂= 1.20 L

Final concentration = M₂= ?

Solution:

By diluting the solution volume of solution will increase while number of moles of solute remain the same.

Formula:

Initial concentration × Initial volume  = Final concentration × Final volume

M₁V₁ = M₂V₂

M₂ = M₁V₁ / V₂

M₂ = 0.5894 M × 0.05698 L / 1.20 L

M₂ = 0.0336 M /1.20  

M₂ = 0.03 M

3 0
4 years ago
How many molecules are ther in 3.5 moles of Corbin dioxide
Serga [27]

Answer:

3 molecule of CO2 = 18069 * 10^20

half the answer to geet the .5

Explanation:

4 0
3 years ago
What was boyle’s most famous discovery about gases?
Alexus [3.1K]

Answer:

Boyle's most famous discovery had to do with how the pressure and volume of gases relate, either this or he discovered the volume of a gas decreases with increasing pressure...

Explanation:

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8 0
3 years ago
A gradual change over time in a species that enables the species to better survive in its environment is known as a(n)
sattari [20]

Answer:

Adaption

Explanation: the definition of adpation is to learn how to survive or to learn what to do to be better or wtvr

4 0
3 years ago
Read 2 more answers
A first-order reaction has a half-life of 20.0 minutes. Starting with 1.00 x 10^20 molecules
blsea [12.9K]

Answer:

E

Explanation:

100 minutes is   5 half lives  ( 100 min/20 min/half life)

         = (1/2 )^5

1 x 10^20    *    (1/2)^5 =   3.125 x10^18   molecules

7 0
2 years ago
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