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andriy [413]
3 years ago
14

Characteristics of a substance that can be measured or observed by changing the identity of the material is a

Chemistry
1 answer:
algol [13]3 years ago
4 0
C cause ur changing the identity of the material
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Which of the following elements can form diatomic molecules held together by triple covalent bonds?
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Nitrogen can form a diatomic molecule held together by triple bonds.
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Find the volume of 56.0 grams of O2
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Answer:

39.2 L at STP

Explanation:

Convert the grams to moles first by dividing 56.0 by the molar mass of O2 (32.0) then convert to volume by multiplying by 22.4.

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What defines a mixture?
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B is your best answer because a mixture is when two or more things combine but not chemically. Take soup for example you take out all the pieces because they didn't combine together and just become 1 thing they still have parts. You can still take the noodles, you take the fish or meat out still, you take the broth away to.

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3 years ago
If 1.27 moles of bromine gas (Br2) react with excess phosphorus (P), how many moles of phosphorus tribromide (PBr3) will be prod
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Answer:

0.85 mole of PBr3.

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

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From the balanced equation above,

3 moles of Br2 reacted to produce 2 moles of PBr3.

Therefore, 1.27 moles of Br2 will react to produce = (1.27 x 2)/ 3 = 0.85 mole of PBr3.

Therefore, 0.85 mole of PBr3 is produced by the reaction.

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