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MA_775_DIABLO [31]
3 years ago
10

Help Mepleaseeeee !!!

Chemistry
2 answers:
asambeis [7]3 years ago
7 0

Answer:

The 500kg boulder

Explanation:

Sindrei [870]3 years ago
7 0
500kg Boulder, the answer u have rn is right
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Which is composed of alkynes?
telo118 [61]
The correct answer is letter (A) Acetylene. Acetylene is the most simplest form of alkyne and at the same time a hydrocarbon. It is unsaturated because of the presence of only two carbon atoms that are bonded together in a triple bond. I<span>n its pure, it is unstable and thus, it is usually held and handled as a solution.</span>
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3 years ago
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What is the molar mass of (NH), CO?<br> 138g<br> 788<br> 968<br> 1448
aleksandr82 [10.1K]

Answer:

The molar mass of (NH_{4})_{2}CO_{3} is 96.8 g/mol

Explanation:

The given molecular formula - (NH_{4})_{2}CO_{3}

Individual molar masses of each element in the compound is as follows.

Molar mass of nitrogen - 14.01 g/mol

Molar mass of of hydrogen = 1.008g/mol

Molar mass of carbon = 12.01 g/mol

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Molar mass of (NH_{4})_{2}CO_{3} is

2\times[1(14.01)+4(1.008)]+1(12.01)+3(16.00)= 96.8g/mol

Therefore,The molar mass of (NH_{4})_{2}CO_{3} is 96.8 g/mol

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3 years ago
A heptagon has six sides.<br> a. True<br> b. False
AlladinOne [14]
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Rashid [163]

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Use the periodic table to write the electron configuration for rubidium (Rb) in noble has notation
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Answer:

Rb: [Kr] 5s  

Step-by-step explanation:

Rb is element 37, the first element in Period 5.

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The preceding noble gas is Kr, so the electron configuration is Rb: [Kr] 5s.

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3 years ago
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