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ELEN [110]
3 years ago
11

Missed the week of school when we learned this.

Chemistry
1 answer:
MrMuchimi3 years ago
8 0
1. Is true
2.false
3.A

Easy 
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What is the number of significant figures in the measurement 5.00 cubic meters? *
yulyashka [42]
I think it’s B..........
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3 years ago
Rubidium has two naturally occurring isotopes, rubidium -85 ( atomic mass = 84.9118 amu; abundance = 72.15%) and rubidium -87 (a
son4ous [18]

Answer:

The answer to your question is: 85.458 amu

Explanation:

data

Rubidium-85   A = 84.9118 amu   abundance = 72.15%  

Rubidium - 87  A = 86.9092 amu abundance = 27.85%

Atomic weight = ?

Atomic weight = 84.9118(0.7215) + 86.9092(0.2785)

Atomic weight = 61.2538 + 24.2042

Atomic weight = 85.458 amu

6 0
4 years ago
What is the formula for hexaboron tetrabromide
Sveta_85 [38]

Answer:

The formula for the compound isB6Br7

6 0
3 years ago
Which of the following provides support and protection for many insects
solmaris [256]

D

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4 0
3 years ago
Read 2 more answers
Draw the major organic product for the reaction of 1-phenylpropan-1-one with the provided phosphonium ylide.
prohojiy [21]

Answer:

2-methylene propylbenzene

Explanation:

The Wittig Reaction is a reaction that converts aldehydes and ketones into alkenes through reaction with a phosphorus ylide.

The ketone in this case is 1-phenylpropan-1-one. The provided phosphonium ylide is shown in the image attached. The reaction involves;

i) alkylation  

ii) addition

The product of the major organic product of the reaction is 2-methylene propylbenzene.

4 0
3 years ago
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