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andreev551 [17]
2 years ago
9

Describe the properties of alkaline earth metals. Based on their electronic arrangement, explain whether they can exist alone in

nature. (8 points)
Chemistry
2 answers:
zheka24 [161]2 years ago
7 0

Answer: all i know about alkaline metals is he alkaline earth metals are shiny, silvery-white, and somewhat reactive metals at standard temperature and pressure.

All the alkaline earth metals readily lose their two outermost electrons to form cations with a 2+ charge.

All of the alkaline earth metals except magnesium and strontium have at least one naturally occurring radioisotope.

Magnesium and calcium are ubiquitous and essential to all known living organisms.

Explanation:

pantera1 [17]2 years ago
4 0
No egdhddh dhfhf dudar he e have eje e she fvdrjdvdr th
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Calculate the mole fraction of cai2 in an aqueous solution prepared by dissolving 0.400 moles of cai2 in 850.0 g of water.
alukav5142 [94]
1) Formulas:

a) mole fraction of component 1, X1

X1 =  number of moles of compoent 1 / total number of moles

b) Molar mass = number grams / number of moles => number of moles =  number of grams / molar mass


2) Application

Number of moles of CaI2 = 0.400

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Total number of moles = 0.400 + 47.22 =47.62

Molar fraction of CaI2 = 0.400 / 47.62 = 0.00840
7 0
3 years ago
When atoms react they form a chemical bond which is defined as?
Jet001 [13]
A force of attraction that holds atom together
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