0.764 km to centimeters

Answers

Answer 1
Answer:

Answer: 76400cm

Explanation:


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Tin-126 has a half life of 100,000 years. How many years does it take toreduce 100 g of Tin-126 to 12.5 g?
100,000 years
200,000 years
50,000 years
300,000 years

Answers

Answer:

300,000 years

Explanation:

100g=0 years

50g=100,00 years

25g=200,00 years

12.5g=300,000 years

300’000 yes I think she is correct

Is tomatoe juice acidic?

Answers

Tomatoes are acidic in the mouth and stomach, yet their Alkaline residue Alkalizes
no it is not an acid is more like lemons

A 10.0-milliliter sample of NaOH(aq) is neutralized by 40.0 milliliters of 0.50 M HCl. What is the molarity of the NaOH(aq)?(1) 1.0 M (3) 0.25 M(2) 2.0 M (4) 0.50 M

Answers

The reaction equation of this is NaOH + HCl = NaCl + H2O. So the mol number of NaOH and HCl are the same. So we can get equation: 40*0.5=10*[NaOH]. (both side of equation is using the same unit of volume) [NaOH]=2.0 M. The answer is (2) 2.0 M.

Answer:2.0M

Explanation

How many moles of oxygen (O2) are required to completely react with 27.4 mol of H2?

Answers

This reaction can be written as
H2 + O2 => H2O. 
Then, balanced, as
2H2 + O2 = 2H2O

There we see that we need 2 times more mol of H2 than O2. So mol of O2 is 1/2 mol of H2. That is 27.4 mol / 2 = 13.7 mol.

Answer:

B

Explanation:

H2 + O2 => H2O.

Then, balanced, as

2H2 + O2 = 2H2O

There we see that we need 2 times more mol of H2 than O2. So mol of O2 is 1/2 mol of H2. That is 27.4 mol / 2 = 13.7 mol.

What is the difference and synthetic fibers ?

Answers

Synthetic fabrics are textiles man – made rather than natural fibers. Examples are acrylic, nylon, rayon, acetate, spandex, lastex and Kevlar. It is made by joining the monomers into polymers by the process known as polymerization.

What happens when you mix soil with water?

Answers

Depends on the soil but it will usually become muddy.
It becomes dirt water and like sometimes it turns red when u sit it out for 1 week.