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aliina [53]
1 year ago
14

How many groups are in the modern periodic table?

Chemistry
2 answers:
Jet001 [13]1 year ago
8 0

Answer:

IA....... VIIIA. main groups (A groups)

IB....... VIIIB. sub groups (B groups)

totally they are 18

Ainat [17]1 year ago
5 0

Answer:

there are 18 groups

Explanation:

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WILL OFFER BRAINLIEST IF YOU CAN ANSWER THIS
AleksAgata [21]

Answer:

3

Explanation:

Thats the correct anwers

5 0
3 years ago
Having studied the data for patterns and trends, you should now be able to draw
avanturin [10]

Answer:

The situation given here is imaginary such that the life of Rock has to be found using the half-life of the element lokium that has been found inside the rock.

Half-life of any material is the amount of time taken by that particular material to decay. Now the amount of lokium found in rock can show after how many half-lives this amount has been left out.

The time elapsed will be log (L) atoms X half-life.

Explanation:

3 0
2 years ago
Which soup would likely be more flavorful, a nicely heated but not too hot to eat bowl of soup or a bowl of leftover soup direct
ira [324]

Answer:

The soup that is not too hot to eat would be better

Explanation:

because the flavours would be fresher than if it is leftover

3 0
2 years ago
Read 2 more answers
Name 3 flammable liquids that you could use to start a campfire.
Svet_ta [14]
Gasoline, kerosene, and lighter fluid.
4 0
3 years ago
A solution is prepared by dissolving 23.7 g of cacl2 in 375 g of water. the density of the resulting solution is 1.05 g/ml. the
alekssr [168]
<span>The density of the solution =1.05 g/ml.
</span><span>The total mass of the resulting solution is = 398.7 g (CaCl2 + water)
</span>
Find moles of CaCl2 and water.
Molar mass of CaCl2 = 110 (approx.)

Moles of CaCl2 = 23.7 / 110  = 0.22
so, moles of Cl- ion = 2 x 0.22 = 0.44  (because each molecule of CaCl2 will give two Cl- ions)
Moles of water = 375 / 18 = 20.83

Now, Mole fraction of CaCl2 =  (moles of CaCl2) / (total moles)

total moles = moles of Cl- ions + moles of Ca2+ ions + moles of water

                  = 0.44 + 0.22 + 20.83

=21.49


So, mole fraction = 0.44 / (21.49) = 0.02

Guess what !!! density is not used. No need

4 0
3 years ago
Read 2 more answers
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