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bazaltina [42]
4 years ago
7

Which of these pairs of elements would be most

Chemistry
2 answers:
allsm [11]4 years ago
3 0

Answer:

The correct answer is  B) Cl and Mg

Explanation:

An ionic bond is produced by the union of a cation and an anion. In this case, Mg would be the cation and Cl the anion. They will form the compound Magnesium Chloride (MgCl2):

Mg + Cl2 ----> MgCl2

Mg belongs to group 2 of the periodic table, that is, it has two valence electrons. In the case of Cl, it is in group 7 and has seven valence electrons (requires one electron to complete the octet).

zheka24 [161]4 years ago
3 0
The answer should be b but if not then d
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Formula of sodium bicarbonate<br>please help me with this​
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Answer:

NaHCO₃

Explanation:

Sodium bicarbonate (baking soda) is a chemical compound with the formula NaHCO₃.

5 0
3 years ago
What is the molar concentration (molarity) of 1.0 mol of KCl dissolved in 750 mL of
Nikolay [14]

Answer:

Molarity is moles per liter. You have one mole in 0.750 liters

Explanation:

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2.00 moles of an ideal gas was found to occupy a volume of 17.4L at a pressure of 3.00 atm and at a temperature of 45 C. Calulat
lidiya [134]

Answer:

0.082 atm L mol^{-1} K^{-1}

Explanation:

The pressure, the volume and the temperature of an ideal gas are related to each other by the equation of state:

pV=nRT

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T is the absolute temperature

For the gas in this problem:

n = 2.00 mol is the number of moles

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p = 3.00 atm is the gas pressure

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R=\frac{pV}{nT}=\frac{(3.00)(17.4)}{(2.00)(318)}=0.082 atm L mol^{-1} K^{-1}

5 0
3 years ago
Are all living things made up of two or more cells?
Sergeu [11.5K]
Yes all living things are mad up of two or more cells

6 0
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