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3 years ago

An atom has 9 protons, 10 neutrons, and 9 electrons. What is the charge of the atoms nucleus? *

Chemistry

1 answer:

MrMuchimi3 years ago

5 0

Answer: neutral

Explanation: there are protons and neutrons in a nucleus and there are more neutrons than protons therefore it’s neutral

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Can someone help me with this molar mass problem?[It’s the last one]

quester [9]

Answer:

$54.18 \times 10^{23} \ moles$ in 3 mole of $Al_2(SO_4)_3$

Explanation:

It is clear that in the given $1\ mole$ of $Al_2(SO_4)_3$ have $3\ ions$ of $SO_4^2^-$

Therefore 3 moles of $Al_2(SO_4)_3$ will have $3\times3=9 \ ions$ of $SO_4^2^-$

Since 1 ion of anything is equivalent to $6.02\times10^{23} \ moles$

Therefore 3 moles of $Al_2(SO_4)_3$ will have $3\times3=9 \ ions$ of $SO_4^2^-$

Which is equivalent to $9 \times6.02\times10^{23}=54.18\times10^{23} \ moles$

Thus 3 moles of $Al_2(SO_4)_3$ gives $54.18\times10^{23} \ moles$ of $SO_4^2^-$ .

5 0

4 years ago

Qué tipo de reacción es el siguiente? CH4 + 02<br><br> CO2 + H2O

Tatiana [17]

Answer:

Combustion reaction

Explanation:

Let's consider the following balanced equation.

CH₄ + 2 O₂ ⇒ CO₂ + 2 H₂O

This reaction is known as a combustion reaction, in which a compound reacts with oxygen to form a compound of carbon and water.

If the product is carbon dioxide, the combustion is complete.
If the product is carbon monoxide or carbon, the combustion is incomplete.

7 0

3 years ago

Read 2 more answers

WILL GIVE BRAINLIEST TO PERSON WHO ANSWERS FASTEST AND CORRECT BUT ANY ANSWERS TO JUST GET POINTS WILL GET REPORTED AND DELETED

AleksandrR [38]

Answer:

Explanation:

When water is at the surface of the ground, it evaporates and goes back to the clouds for which causes it to rain therefore returning water back.

3 0

3 years ago

Which is the command center of the body

ankoles [38]

Answer:

nervous system

or u can say brain too

Explanation:

hope this is what u want

4 0

3 years ago

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if the density of a certain spherical atomic nucleus is 1.0x10^14 g cm^-3 and its mass is 2.0x10^-23 g, what is it radius in cm?

bagirrra123 [75]

Density as you should know is equal to mass/volume. Solve for the volume.

Now, you know that you are dealing with a sphere. You know the volume of a sphere is V= 4/3pi r ^3.

You know the volume so just solve for r

6 0

3 years ago

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