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lakkis [162]
3 years ago
7

Which of the following statements is NOT true about combustion reactions?

Chemistry
1 answer:
marissa [1.9K]3 years ago
8 0

Answer:

The answer is option C..

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Which of the following traits are heritable?
sertanlavr [38]

Answer:

C

Explanation:

D: Wrong! going to bed early is a learned behavior. If someone wakes you up early enough times, you will get up early.

B: Being musical is possible that you will inherit such an ability, but I think you are intended not to give B as an answer.

A: You can learn to like favorite foods because they are being served. Favorite foods are a craving. It is like B. It might be, but I don't think you are intended to answer it.

C: is definitely an inherited quality.

8 0
3 years ago
Read 2 more answers
Most galaxies in the universe are irregular-shaped galaxies. True False.
GalinKa [24]

Galaxies are the lump of matter. The shape of major galaxies is spiral shape. Thus, the given statement is false.

<h3>What are the shapes of galaxies?</h3>

The galaxies are the lump of dust and mass, held together by the gravitational force. The galaxies are continuously moving in the universe.

The formation of galaxies is believed to be due to the force of attraction between the components.

The shape of major galaxies is assumed to be spiral-shaped, however, the irregular shape galaxies are also present.

Thus, the given statement about the shape of galaxies is false.

Learn more about galaxies, here:
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7 0
2 years ago
Concentration required to begin precipitate pbcl2 for pbcl2 ksp=1. 17×10−5
Ne4ueva [31]

The concentration required to begin to precipitate PbCl2 for PbCl2 is 0.0216 M.

<h3>What is molarity?</h3>

Molarity is the measure of the concentration of any solute in per unit volume of the solution.

The reaction is \rm Pb^2^+(aq) + 2Cl^-(aq) \rightarrow PbCl_2(s).

The molarity of lead is 0.025 M

The ksp is given 17×10⁻⁵

Now, calculating the concentration

[Pb^2^+] = 0.025 M.\\Ksp = 1.17 \times 10^-^5\\Ksp = [Pb^2^+] \times  [Cl^-]^2\\[Cl^-] =  \dfrac{\sqrt{ Ksp}}{[Pb^2^+]} \\\\[Cl^-] =  \dfrac{\sqrt{ 0.0000117}}{0.025}  \\[Cl^-] = 2.16 \times 10^-^2M.

Thus, the concentration required to begin to precipitate PbCl2 for PbCl2 is 0.0216 M.

Learn more about molarity

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#SPJ4

5 0
2 years ago
A saline solution similar to that used for intravenous drips is made by dissolving 0.45 g sodium chloride in 50.00 g water. Whic
beks73 [17]

Answer:

E) 1, 2, and 3

Explanation:

50g H2O + 0.45g NaCl --> 50.45g saline solution

7 0
3 years ago
Explain how scientists use geologic time to determine the age of land forms.
valentina_108 [34]
I am sorry i wish i could help you but i dont know the answer either.
5 0
3 years ago
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