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GarryVolchara [31]
3 years ago
5

A sodium atom has 11 protons, 10 electrons, and 12 neutrons. What is its charge

Chemistry
1 answer:
OverLord2011 [107]3 years ago
6 0

Answer:

An ion with 11 protons, 11 neutrons, and 10 electrons would have a charge of 1+, also expressed as a charge of positive one or +1.

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Part a how many carbon atoms are in a 2-carat pure diamond that has a mass of 0.40 g . express your answer using two significant
shutvik [7]

We have to calculate the number of carbon atoms present in 2-carat pure diamond.

The number of carbon atoms present in 2-carat pure diamond is: 0.19 X 10²³ number of carbon atom.

Diamond is one allotrope of carbon. Atomic mass of carbon is 12.

Mass of one mole carbon atom is 12 g. One mole carbon contains Avogadro's number i.e, 6.023 X 10²³ number of atoms.

0.40 g diamond contains 0.40/12 moles= 0.033 moles of carbon atom.

So, number of carbon atoms present in 0.40 g diamond (i.e, 0.033 mole diamond) is 0.033 X 6.023 X 10²³= 1.98 X 10²²=0.19 X 10²³ .

Therefore, 0.19 X 10²³ number of carbon atoms are in a 2-carat pure diamond that has a mass of 0.40 g

3 0
4 years ago
What happens when plaster of Paris is treated with co2
umka21 [38]
) adding phosphoric acid, said phosphoric acid reacting with said calcium carbonate to release gaseous carbon dioxide bubbles, and said water providing water of hydration to said plaster of Paris to form gypsum that sets around said carbon dioxide bubbles thereby forming said foamed plaster.
5 0
3 years ago
What is the mode of action of most antifungal drugs?
Goshia [24]

Inhibition of protein synthesis is the mode of action done by most antifungal drugs.

<h3>What is the mode of action of antifungal drugs?</h3>

Antifungals drugs inhibit the synthesis of ergosterol the main fungal sterol, polyenes which interact with fungal membrane sterols and 5-fluorocytosine inhibits macromolecular synthesis.

So we can conclude that inhibition of protein synthesis is the mode of action done by most antifungal drugs.

Learn more about drug here: brainly.com/question/26254731

3 0
2 years ago
Where would you have the least mass?​
beks73 [17]

Answer:

the moon but mass stays the same  

Explanation:

7 0
3 years ago
Consider the chemical equations shown here.
CaHeK987 [17]

Answer:

-867.7kJ

Explanation:

3H2(g)+O3(g)—>3H2O(g)=

-867.7kJ

8 0
3 years ago
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