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suter [353]
3 years ago
11

Twh-bmyd-aer please j.o.i.n...

Chemistry
1 answer:
BartSMP [9]3 years ago
3 0

Explanation:

ok will do

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Which of the following statements about DNA is false? A. DNA is the molecule that stores information an organism needs to surviv
VladimirAG [237]

Answer:

<u>C. DNA is made up of smaller molecules called chromosomes.</u>

Explanation:

Chromosomes are thread like structure in the nucleus of the cell. DNA is the part of chromosomes so it is not made up of chromosomes. DNA is made up of Nucleotides.

All other statements are true because DNA is the integral part of every Organism.

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3 years ago
What is silica sand used for?
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Microchips I know for sure and some types of glass
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Which is true about relative dating?
AleksAgata [21]

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8 0
3 years ago
Read 2 more answers
please help I don’t understand the difference between ammonium and ammonium ion. I possibly did 9.a) correct but part b is a bit
ozzi

You may find the electron diagram of ammonia and the ammonium ion in the attached picture.

Explanation:

Ammonia NH₃ have covalent bonds with the hydrogen atoms in which for each bond one electron comes from nitrogen atom (blue dot) and the other from the hydrogen atom (red dot). You may see that the nitrogen remains with the lone pair of electrons that does not participate in bonding.

Ammonia NH₃ have a basic character and is able to accept a proton H⁺ from an acid to form the ammonium ion NH₄⁺. The fourth bond formed its called a coordinative-covalent bond that is created only with the nitrogen lone pair of electrons (blue dots).

Learn more about:

ammonium ion

brainly.com/question/10874844

#learnwithBrainly

5 0
3 years ago
After 42 days, a 2.0 g sample of phosphorous-32 contains only 0.25 g of the isotope. What is the half-life of phosphorus-32?
tester [92]

Answer:

Half life of phosphorous-32 = 14 days

Explanation:

Given data:

Total mass of phosphorous-32 = 2.0 g

After 42 days mass left = 0.25 g

Half life of phosphorous-32 = ?

Solution:

First of all we will calculate the number of half lives passed.

At time zero = 2.0 g

At first half life = 2.0 g/2 = 1.0 g

At 2nd half life = 1.0 g/2 = 0.5 g

At 3rd half life = 0.5 g/2 = 0.25 g

Half life:

Half life = T elapsed / half lives

Half life = 42 days/ 3

Half life = 14 days

4 0
3 years ago
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