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3 years ago

15

Two chemical samples were heated individually in a flame and both produced an identical orange flame. What conclusion can you dr

aw from this experiment?

1 answer:

cestrela7 [59]3 years ago

6 0

Answer: they both contain the same metal(calcium)

Explanation: calcium burns with a characteristic orange color.

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A molecule contains 24.36 g of nitrogen and 62.64g of sliver

Komok [63]

Answer:

This molecule is AgN3

Explanation:

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Which of the following is not true of a scientific theory?

Furkat [3]

Answer: a,b

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Consider the reaction.

Alex_Xolod [135]

Note the signs of equilibrium:-

Reaction don't procede forward or backward
Concentration of products and reactants remains same .

So

if

Concentration of A is 2M then concentration of B should be same .

So equilibrium constant K is 1

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So

[B]=[A]^2
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2 years ago

What mass of Na2SO4 is needed to make 2.5L of 2.0M solution? (Na=23g; S=32g; O=16g)

zaharov [31]

The molar mass of Na₂SO₄ -
2 x Na - 2 x23 = 46
1 x S - 1 x 32 = 32
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in 1 L of solution , 2.0 moles
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What is the symmetry of n??

Aleks [24]

Answer:

n don't hv symmetry lines.

so the symmetry of n is 0

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