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Ivan
3 years ago
13

1. Who was the first person to create a periodic table? When?

Chemistry
2 answers:
Hatshy [7]3 years ago
8 0

Answer:

Mendeleev discovered the periodic table (or Periodic System, as he called it) while attempting to organise the elements in February of 1869.

Explanation:

goldenfox [79]3 years ago
7 0

Mendeleev discovered the periodic table (or Periodic System, as he called it) while attempting to  the elements in February of 1869. also I made a enderBender of our pfp!

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3 years ago
Match the term with the definition:
MrRissso [65]
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5 0
3 years ago
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(06.05 LC)
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7 0
3 years ago
HELPSS!
kirza4 [7]

Answer:

The amount of isopropyl alcohol contained in 150 ml of the solution is 117.15 grams

Explanation:

The density of a substance is the mass per unit volume, therefore, we have;

The density of the isopropyl alcohol = 0.785 g/ml at 25°C

The  density = mass/volume

Mass = Density × Volume

The mass of the 150 ml of isopropyl alcohol is therefore;

Mass = 0.785 g/ml × 150 ml = 117.15 g

The amount in grams contained in 150 ml of sample = 117.15 g.

8 0
4 years ago
How many electrons that may bank in 1.6 g of methane
BlackZzzverrR [31]

Answer:

6.022 x 10^23

Explanation:

There are 6.022 x 10^23 electrons that may bank in 1.6 g of methane.

10×6.023×10²²

6.023 ×10²³

4 0
3 years ago
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