Answer:
The answer to your question is:
Explanation:
3.- Convert each into
1.56 x 10⁴ = 15600
0.00259 x 10⁵ = 259
0.00259 x 10³ = 2.59
0.56 x 10⁻² = 0.0056
0.000459 x 10⁻¹ = 0.0000459
0.0209 x 10⁻³ = 0.0000209
3.69 x 10⁻² = 0.0369
13.69 x 10⁻² = 0.1369
736.9 x 10⁵ = 73690000
6.9 x 10⁴ = 69000
4.- Calculate the following
a) 2653000 = 2.653 x 10⁶
b) -2687 = - 2.687 x 10³
c) 2.532 x 10²⁴
d) 1470 = 1.47 x 10³
A chemical change is a change that cannot be reversed, usually chemically combining the elements together (hence the name). The composition of the element also changes.
When boiling the egg, the yolk and the liquid inside both undergo a chemical change. You will notice that the yolk and liquid cannot be liquified again.
Hope I helped :)
Inference is an educated guess darlin
Answer:
The answer to your question is: The second option.
Explanation:
Atoms are stable when they gain or lose electrons to have 8 electrons.
They have one valence electron. Noble gases have 8 electrons, not one, If they would have 1 electron they would be extremely reactive.
They have eight valence electrons. This is the right answer, noble gases have 8 electrons that is why they are unreactive.
They have seven valence electrons. If noble gases would have 7 electrons, they would be very reactive.
They have two valence electrons. This option is incorrect, elements that have 2 electrons are reactive like Calcium, Magnesium, etc.
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
Where
Density of Quartz is Generally given as 2.7g/ml
Therefore
Therefore
Percentage of spt=0.02*100
Percentage of spt=2\%
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