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PolarNik [594]
3 years ago
15

Steve left for a fishing trip at 11:00. He

Chemistry
1 answer:
Lemur [1.5K]3 years ago
5 0

Answer:

Ne gets home at 1:45.

Explanation:

It’s 11:00. He takes 1 hour to make the 40 mile trip. It’s 12:00. He takes 60 minutes to gather lunch, rod and reel, and at the lake. It’s 1:00. He takes 45 minutes to get home. It’s 1:45.

I hope this helped and please mark me as brainliest!

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Which electrons are responsible for most chemical bonding? outer electron shell because these electrons can be readily exchanged
Ymorist [56]

Answer:

The answer to your question is: The first option.

Explanation:

Outer electron shell because these electrons can be readily exchanged with adjacent atoms As is mentioned in the statement, these electrons can be exchanged easily with adjacent atoms, so this is the right answer.

Innermost electron shell because the electrons can be transferred to the nucleus. Innermost electrons can not react as easily as the outermost, because they are protected by the outermost shells. This answer in not correct.

Middle electron shell because they are intermediate in distance between the nucleus and the adjacent atom that bonds with the atom. In order that an electron can react, it must be located in the outermost shell, it is not an advantage to be in the middle shells. This option is incorrect.

Any electron can exchange with adjacent atoms to form a bond; there is no preference. Not any electron can react with another element, only the electrons in the outermost shell can react, this option is incorrect.

5 0
3 years ago
Can someone help me to understand stochiometry ?? <br>plz
Nana76 [90]
Stoichiometry is the relationship between the relative quantities of substances taking part in a reaction or a compound. this is normally a ratio of whole integers. 
7 0
4 years ago
Read 2 more answers
If you add a large piece of zinc to a beaker of acid and, in a separate beaker, zinc shavings to a beaker of acid (of equal conc
Sergeu [11.5K]

Answer: surface area

Explanation:

Surface area affects rate of reaction. The smaller the surface area the faster the rate of reaction. The zinc shavings have a smaller surface area of reactants compared to the large piece of zinc. The smaller surfaces area of reactants ensures that it comes into close proximity with the acid solution for reaction to take place.

7 0
3 years ago
Which of the following reactions is possible according to Dalton's atomic theory? View Available Hint(s) Which of the following
finlep [7]

Answer:

N2+O2→2NO

Explanation:

Dalton’s atomic theory is based on law of constant composition and law of conservation of mass.

One of the postulates of this theory is that rearrangement of atoms occurs during a chemical reaction. In other words, only rearrangement of elements occurs during a chemical reaction and elements remain the same.

So, among the given, the following reaction undergoes rearrangement of elements.

N2+O2→2NO

SO, only the above reaction is possible as per Dalton’s atomic theory.

7 0
4 years ago
The ph of 0.010 m aqueous aniline is 8.32. What is the percentage protonated?
LekaFEV [45]

Answer : The percentage aniline protonated is, 0.0209 %

Explanation :

First we have to calculate the pOH.

pH+pOH=14\\\\pOH=14-pH\\\\pOH=14-8.32\\\\pOH=5.68

Now we have to calculate the hydroxide ion concentration.

pOH=-\log [OH^-]

5.68=-\log [OH^-]

[OH^-]=2.09\times 10^{-6}M

The equilibrium chemical reaction will be:

NH_3+H_2O\rightleftharpoons NH_4^++OH^-

From the reaction we conclude that,

Concentration of OH^- ion = Concentration of NH_4^+ ion = 2.09\times 10^{-6}M

Now we have to calculate the percentage aniline protonated.

\text{percentage aniline protonated}=\frac{2.09\times 10^{-6}M}{0.010M}\times 100

\text{percentage aniline protonated}=0.0209\%

Thus, the percentage aniline protonated is, 0.0209 %

7 0
4 years ago
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