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Lemur [1.5K]
3 years ago
11

If an atom has 8 protons how many electrons does it have?What is the atoms charge

Chemistry
1 answer:
baherus [9]3 years ago
8 0
Eight. It would also have 8 neutrons aswell
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6 0
3 years ago
What mass of potassium iodide is needed to prepare 5.60 L of a 1.13 M solution
MrMuchimi
Given that the question gives us concentration (M) and volume, we can use these so get moles. remember that Molarity (M)= mol/ Liters, so if we want the moles, then

moles= M x L

moles= 1.13 x 5.60= 6.33 moles KI

now to get the mass in grams, we need the molar mass of potassium iodide (KI) which can be determined using the periodic table and add the masses of each atom.

molar mass KI= 39.1 + 127= 166.1 g/mol

6.33 mol (166 g/ 1 mol)= 1050 grams KI


8 0
3 years ago
A gas vessel is charged with a mixture of pcl3(g) and cl2(g), which is allowed to equilibrate at 450 k. at equilibrium the parti
VikaD [51]
Answer is: Kp = 66,586.
Chemical reaction:  PCl₃(g) + Cl₂(g)  ⇔ PCl₅(g).
Kp - equilibrium constants expressed in terms of partial pressures of gases.
Kp = p(PCl₅) ÷ p(PCl₃) · p(Cl₂). p-partial pressure.
Kp = 1,67 atm ÷ 0,132 atm · 0,190 atm
Kp = 66, 586 1/atm. Favors product.
4 0
3 years ago
The answer to this question
Ulleksa [173]

Hey there!

Oxygen needs two bonds to have a valence orbital of s²p⁶.

In a hexanal molecule, oxygen has a double bond with one carbon atom.

A double bond is when two pairs of electrons are being shared.

So your answer is b. 2.

Hope this helps!  

7 0
3 years ago
Which of the following is the preferred degree for a seismologist?
Sedbober [7]
<em>A seismologist is a scientist who does research in </em><span><em>seismology or history Which is same as <u>Geoscience</u>.</em></span><em></em>
5 0
3 years ago
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