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3 years ago

To calculate acceleration you must know both the objects velocity and _______________ 1pt

Chemistry

2 answers:

KATRIN_1 [288]3 years ago

8 0

Answer:

i think its speed

Explanation:

scoundrel [369]3 years ago

8 0

Answer:

Velocety and mass

Explanation:

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Which formula correctly represents the composition of iron III oxide

nikitadnepr [17]

The answer to the question is- Fe2O3

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3 years ago

Virtually no chemical reaction can occur in the body in the absence of enzymes. how might excessively high body temperature or a

olchik [2.2K]

1. The structural unit of nucleic acids are composed of repeating units of monomers called nucleotides. Nucelotides are composed of three functional groups: sugars which are specifically pentoses (5-Carbon sugars), phosphate group and nitrogenous base.

2. The two major classes of nucleic acids in the body are the DNA or deoxyribonucleic acids and RNA or ribonucleic acids.

3.
a. Based on the nitrogenous bases and sugar, the DNA has a deoxyribose as the sugar and its 4 bases are adenine, guanine, cytosine and thymine. For RNA, the sugar is ribose while its 4 bases are adenine, guanine, cytosine, and uracil

b. Based on the general three-dimensional structure, DNA is a double stranded β-helix with a long chain of nucleotides. RNA is composed of a shorter chain with a single strand α-helix structure.

c. Based on relative functions, the DNA is responsible for storing the genetic information while the RNA is responsible for transporting the genetic information to the ribosomes which synthesize proteins.

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3 years ago

At room temperature, all samples of liquid water must have the same

laiz [17]

Density. water's density is always 1 g/ cm^3

4 0

3 years ago

Read 2 more answers

For the simple decomposition reactionAB(g)→ A(g) + B(g)Rate =k[AB]2 and k=0.2 L/mol*s . How long will it takefor [AB] to reach 1

mixer [17]

Answer:

6.66 s will it take for [AB] to reach 1/3 of its initial concentration 1.50 mol/L.

Explanation:

$Rate = k[AB]^2$

The order of the reaction is 2.

Integrated rate law for second order kinetic is:

$\frac{1}{[A_t]} = \frac{1}{[A]_0}+kt$

Where, $[A_0]$ is the initial concentration = 1.50 mol/L

$[A_t]$ is the final concentration = 1/3 of initial concentration = $\frac{1}{3}\times 1.50\ mol/L$ = 0.5 mol/L

Rate constant, k = 0.2 L/mol*s

Applying in the above equation as:-

$\frac{1}{0.5} = \frac{1}{1.50}+0.2t$

$\frac{1}{1.5}+0.2x=\frac{1}{0.5}$

$t = 6.66\ s$

6.66 s will it take for [AB] to reach 1/3 of its initial concentration 1.50 mol/L.

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3 years ago

Can a new element be discovered and be placed in between copper and nickel on the periodic table? Explain your answer.

laila [671]

Answer:

Yes and no

Explanation:

If a new element is discovered and needed to be put into the table of elements, there would have to be a process to find a spot for it. The table is used heavily in chemistry and it revolves around how the elements are placed. So there would have to be a developed spot for the new element.

3 0

3 years ago