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Anna71 [15]
3 years ago
12

Summary of the periodic table

Chemistry
1 answer:
JulsSmile [24]3 years ago
4 0
The periodic table to chart which arranges all of the unknown elements to the automatic numbers the columns in the periodic table are called families or groups the rows are called periods
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tino4ka555 [31]

Answer:

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Explanation:

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8 0
2 years ago
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Which practice does the Montreal Protocol aim to reduce?
PolarNik [594]
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3 years ago
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When 2.50 g of an unknown weak acid (ha) with a molar mass of 85.0 g/mol is dissolved in 250.0 g of water, the freezing point of
baherus [9]
When dT = Kf * molality * i
                = Kf*m*i
and when molality = (no of moles of solute) / Kg of solvent
                               = 2.5g /250g x 1 mol /85 g x1000g/kg
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5 0
3 years ago
The neutrons within the nucleus of an atom have what charge?
vivado [14]

Answer:

the answer is D.

Explanation:

your welcome :)

4 0
2 years ago
A small motor does 4000 J of work in 20 s. What is the power of the motor in watts?
TEA [102]

Answer:

200 W

Explanation:

Formula of Power is

P= W/T

where

W= Work and T= Time

so

4000/20 = 200J/s or 200 W

6 0
2 years ago
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