CHEMISTRY HIGH SCHOOL

Which two atomic particles make up the nucleus of an atom?isotopes
protons
neutrons
electrons

Answers

Answer 1
Answer: Neutrons And protons I believe

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The reaction AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq) is a_________reaction. please help

What is internodes in chemistry​

Answers

Explanation:

In chemistry, internodes refer to the points in the structure of a molecule or molecular chain where carbon atoms are located. Internodes are carbon atoms that are directly connected by a single bond. These carbon atoms are often called "C" followed by a number indicating their position in the chain. Carbon atoms that are not internodes are called "terminal carbons" and are bonded to other atoms or chemical groups. The structure of internodes and terminal carbons is important for understanding the geometry and reactivity of organic molecules.

What process occurs in a controlled fusion reaction

Answers

The controlled fusion reaction is a nuclear reaction in which two or more atomic nuclei come very close and then collide at a very high speed and join to form a nucleus. The mass of the new nucleus is slightly less than the sum of its components b an amount known as binding energy.

A piece of iron (Cp = 0.450 J/(gi°C)) that has a mass of 21.5 g and an initial temperature of 100.0°C is submerged in X g of water (Cp = 4.184 J/(gi°C)) at 20.0°C. The temperature of the system (iron and water) changes to 21.4°C. What is the value of X? A. 041 g. B. 80 g. C. 132 g. D. 574 g

Answers

The problem ask to calculate the value of x if an iron taht has a mass of 21.5g and has an initial temperature of 1000.0C is submerge in Xg of a water at 20C. So the value of X is letter C. 132 g. I hope you are satisfied with my answer and feel free to ask for more 

Answer:

D) yes, because (StartFraction b Over a + c EndFraction)(a + c) = b

Explanation:

just did it on edge 2020

Choose the statement that best describes the titration from which this data was collected

Answers

I think the correct answer is the first option. The analyte was an acid but and the titrant is a base since from the graph the initial pH of the solution is at an acidic pH when  there is still no titrant added.

What mass of a 60.0-gram sample of N-16 will remain unchanged after 28.8 seconds?

Answers

The answer is 3.75 g.

Half-life is the time required for the amount of a sample to half its value.
To calculate the fraction of the sample remained unchanged, we will use the following formulas:
1. (1/2)^(n) = x,
where:
n - a number of half-lives
x - a remained fraction of a sample

2. t_(1/2) = (t)/(n)
where:
t_(1/2) - half-life
t - total time elapsed
n - a number of half-lives

The half-life of N-16 is 7.13.
So, we know:
t = 28.8 s
t_(1/2) = 7.13 s

We need:
n = ?
x = ?

We could first use the second equation, to calculate n:
If:
t_(1/2) = (t)/(n),
Then: 
n = (t)/( t_(1/2) )
⇒ n = (28.8 s)/(7.13 s)
⇒ n=4.04
⇒ n ≈ 4

Now we can use the first equation to calculate the remained amount of the sample.
(1/2)^(n) = x
⇒ x=(1/2)^4
⇒x= (1)/(16)


If the fraction of the sample is 1/16 = 6.25%, then the mass of the sample could be calculated as:
x g : 6.25% = 60 g : 100% 
x = 

Look at the image above then answer these questions:Which one is the correct answer? Why is it the correct answer?

Answers

Answer:

yes its correct, temperature is a measure of energy particles have, the more energy the faster they move and the higher the temp

Explanation:
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