2 years ago

Here is a word equation for a chemical reaction.

1 answer:

soldier1979 [14.2K]2 years ago

4 0

Explanation:

From the word equation, it shows that when copper oxide reacts with sulphuric acid, a double replacement reaction will occur, where copper and sulphate forms a bond with each other, and so do water.

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What is the energy of a 933 nm wave?

vovikov84 [41]

E=hc/l

E=(6.626 x 10-34 J s)(3.0 x 108m/s )=2.88 x 10-19J6.90 x 10-7m

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2 years ago

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A student was asked to determine the densities of the four metals listed. The student was asked to determine the density of an u

Iteru [2.4K]

Answer:

D is correct

Explanation:

because

we know that

density of lead is 11.36 g/cm3

and

density of tin is 7.31 g/cm3

so..

density of alloy by mixing 50/50

=(11.36+7.31)/2 g/cm3

=18.67/2 g/cm3

=9.33 g/cm3

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3 years ago

Which noble gas is closer to magnesium

cricket20 [7]

I believe Neon is closest to Magnesium on the Periodic Table of elements.

Sorry if I'm wrong, hope I could help though! :)

3 0

2 years ago

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masya89 [10]

Answer:

Yes

Explanation:

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2 years ago

The label shown above contains information about some harmful effects of acetone.A group of students plans to use acetone to rin

Fed [463]

Answer:

Heating water with an open flame

Explanation:

Remember, we are told in the label that Acetone is a "flammable liquid and vapor." Being flammable means the substance can easily be set on fire, and we would expect an open flame from heating water to trigger an explosion (a disaster) in which the Acetone is set on fire causing life-threatening dangers to the second group of students.

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2 years ago