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jeka57 [31]
3 years ago
5

Which element is in group 2 and period 7 of the periodic table

Chemistry
1 answer:
bekas [8.4K]3 years ago
3 0
Hey
      Sorry, But There Is No 7th Element in group two. only six which is Radium.
     ~Spades15
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The steam rotates a turbine that activates a generator, which produces electricity. Many power plants still use fossil fuels to boil water for steam. Geothermal power plants, however, use steam produced from reservoirs of hot water found a couple of miles or more below the Earth's surface.
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3 years ago
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Balance chemical equation Calcium hydroxide + carbon dioxide = calcium carbonate + water
dmitriy555 [2]

Answer:

yaeh

Explanation:

a)Ca(OH)

2

​

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O

No. of atoms:Ca−1;O−4;H−2;C−1

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3 years ago
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Ierofanga [76]

Answer:

Yes, this answer is correct.

Explanation:

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T= Tc+273.15

T is the kelvin temperature

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substitute;

T= -273.15 + 273.15

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5 0
3 years ago
How much mass do 3.4 moles of silver contain?
tensa zangetsu [6.8K]

367.2 g of silver

Explanation:

To find the mass of a substance knowing the number of moles we use the following formula:

number of mole = mass / molecular weight

In the case of silver we use the atomic weight of 108 g/mole.

mass = number of moles × molecular weight

mass of silver = 3.4 moles × 108 g/mole

mass of silver = 367.2 g

Learn more about:

moles

brainly.com/question/2293005

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2 years ago
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6 0
3 years ago
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