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AlladinOne [14]
3 years ago
6

What have scientists been able to use to create the Geologic Time Scale?

Chemistry
1 answer:
dem82 [27]3 years ago
3 0
The half-life of the carbon-14 isotope is used in dating fossils in a process called radiocarbon dating.

hope this is adequate. 
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What is specific gravity in minerals?
natima [27]

Specific gravity is the "heaviness" of a mineral. It is defined as a number that expresses the ratio between the weight of a mineral and the weight of an equal volume of water.

4 0
3 years ago
Read 2 more answers
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kondor19780726 [428]
We are given the amount of Nitrogen gas and hydrogen gas reacted to form ammonia:

N2 = 19.25 grams
H2 = 11.35 grams

Set-up a balanced chemical equation:

N2 + 3H2 ==> 2NH3

The theoretical amount of ammonia that will be produced from the given amounts is:

First, we need to determine the limiting reactant to serve as our basis for calculation.

number of moles / stoichiometric ratio 

N2 = 19.25  g/ 28 g/mol / 1 = 0.6875
H2 = 11.35 g/ 2 g/mol /3 = 1.89 

The limiting reactant is N2.

0.6875 moles N2 * (2 NH3/ 1 N2) * 17 g/mol NH3

The amount of NH3 produced is 23.375 grams of ammonia. <span />
7 0
3 years ago
Which two functional groups are always found in amino acids?
Dmitry_Shevchenko [17]
The answer would be the amino group and the carboxyl group
hope this helpssss
6 0
3 years ago
What is the concentration in g/L of a solution containing 10 g of solute in 2 L of solution
alekssr [168]

The concentration is 5 g/L.

Concentration = mass/volume = 10 g/2 L = 5 g/L

6 0
3 years ago
What does the oxidizing agent do in a redox reaction?
WITCHER [35]
I think the answer is c not completely sure
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4 years ago
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