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Firdavs [7]
3 years ago
6

What was the time frame?

Chemistry
1 answer:
faltersainse [42]3 years ago
7 0

Answer:

If you are referring to the Precambrian time, the answer is 500 Million Years Ago.

Explanation:

Precambrian time is the time period that started with the formation of Earth and ended about 500 million years ago.

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What percent of SPT (3.10 g/mL) is present in a solution with a density of 2.60 g/mL, suitable to separate quartz and feldspar?
nataly862011 [7]

We have that the percentage  of SPT (3.10 g/mL)  present in a solution with a density of 2.60 g/mL is

Percentage of spt=2\%

From the question we are told

What percent of SPT (3.10 g/mL) is present in a solution with a density of 2.60 g/mL, suitable to separate quartz and feldspar? The other component of this solution is water (1.00 g/mL)

Generally the equation for the Desired SPT is mathematically given as

3.10x+(2.6-\rho)*1=2.7

Where

Density of Quartz is Generally given as 2.7g/ml

Therefore

3.10-\rho=2.7\\\\2.1=0.05\\\\\rho=0.02

Therefore

Percentage of spt=0.02*100

Percentage of spt=2\%

For more information on this visit

brainly.com/question/1689737  

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