3 years ago

The number of protons and neutrons combined in an atom of a particular element

Chemistry

1 answer:

Kobotan [32]3 years ago

6 0

The number of protons and neutrons combined in an atom is called the mass number.

You might be interested in

Semasa proses pengewapan, cecair bertukar menjadi gas. Apakah yang berlaku kepada zarah dalam cecair??

katovenus [111]

Can you translate in english i can’t understand this

4 0

2 years ago

In the current model of the atom, ___. electrons and protons are mixed together in a solid sphere electrons orbit around the pos

kati45 [8]

Neutrons and protons are in the nucleus
electrons are on shells which orbit the nucleus

5 0

2 years ago

Hydrogen iodide decomposes slowly to H2 and I2 at 600 K. The reaction is second order in HI, and the rate constant is 9.7×10−6M−

Lady bird [3.3K]

Answer : The molarity after a reaction time of 5.00 days is, 0.109 M

Explanation :

The integrated rate law equation for second order reaction follows:

$k=\frac{1}{t}\left (\frac{1}{[A]}-\frac{1}{[A]_o}\right)$

where,

k = rate constant = $9.7\times 10^{-6}M^{-1}s^{-1}$

t = time taken = 5.00 days

[A] = concentration of substance after time 't' = ?

$[A]_o$ = Initial concentration = 0.110 M

Now put all the given values in above equation, we get:

$9.7\times 10^{-6}=\frac{1}{5.00}\left (\frac{1}{[A]}-\frac{1}{(0.110)}\right)$

$[A]=0.109M$

Hence, the molarity after a reaction time of 5.00 days is, 0.109 M

8 0

2 years ago

Pls answer ill give brainliest question in picture

satela [25.4K]

Answer: A & D

Explanation:

The two main forces are temperature and salinity.

3 0

2 years ago

Someone help me Explain how non-genetic factors can affect phenotype. Give an example.

Yanka [14]

Answer:

one could be the weather.

phenotypes are physical characteristics of a person and there non genetic factors that play a role.

weather and environmental factors, your surroundings and orders related to the environment basically

6 0

2 years ago