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Alex787 [66]
3 years ago
11

The Periodic Table of elements is arranged by:

Chemistry
2 answers:
alekssr [168]3 years ago
6 0

Answer:

number of electrons and number of neutrons

elena55 [62]3 years ago
5 0

Answer:

atomic number

Explanation:

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Please help asap thank you.
Aleks [24]

Answer:

a)0.816g/l

b)0.241g/l

8 0
3 years ago
What does changing densities cause to occur
Dafna1 [17]

Answer:

Explanation:

Please Elaborate

8 0
3 years ago
What happens when you grow the same crop over and over again in the same field
irinina [24]
Well there's a couple reasons why. First, the land itself can become “tired" and less fertile<span>. This is because the same type of </span>crop<span> planted repeatedly in the same area keeps draining the land of the same nutrients needed for that plant's growth. Pest can also plant their nest near the crop if the farmer continues to plant the same crop in the same place. 

Which is the reason why things such as "crop rotation" exist to keep things fresh, and prevent what I described above from happening.</span>
6 0
3 years ago
3. How many moles of NaCl are present in 6000. La 1.5 M NaCl solution?
Leno4ka [110]

Answer:

Option A (9.0) is the correct alternative.

Explanation:

The given values are:

Molarity,

= 1.5 M

Volume,

= 6000 mL

or,

= 6 L

As we know,

⇒ Molarity=\frac{Moles}{Volume}

or,

⇒ The \ moles \ of \ NaCl=Molarity\times Volume

By putting the values, we get

                                     =1.5\times 6

                                     =9 \ mol

7 0
3 years ago
What relationship exists between two variables when their ratio is a constant? a negative slope a direct proportion an inverse p
Verdich [7]
Direct proportion

Hope this helps (:
6 0
3 years ago
Read 2 more answers
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