3 years ago

No. 65, chemistry help Thank you

1 answer:

7 0

Remember the acronym "Oil Rig". Oxidation is loss, Reduction is gain of electrons. Calcium is losing electrons so it's an oxidation reaction.

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Kisachek [45]

7.5x10^14 Hz. I just worked it out on paper.

7 0

3 years ago

lyudmila [28]

Bonding is ionic for sure
Mg has lost 2e,s to become Mg2+
and there are 2 Cl-
the strong attraction between the Mg2+ and 2Cl- form the ionic bonding

6 0

3 years ago

ale4655 [162]

Answer:

C. its reduced

Explanation:

4 0

3 years ago

sesenic [268]

Answer : The volume of solution will be, $7.047\times 10^6L$

Explanation : Given,

Mass of AgO = 900 mg = 900000 g

conversion used : (1 mg = 1000 g)

Molar mass of AgO = 124 g/mole

Molarity of AgO = $1.03\times 10^{-6}mM=0.00103M$

Molarity : It is defined as the number of moles of solute present in one liter of solution.

Formula used :

$\text{Molarity}=\frac{\text{Mass of solute}}{\text{Molar mass of solute}\times \text{volume of solution in liter}}$

Now put all the given values in this formula, we get the active mass of urea.

$0.00103M=\frac{900000g}{124g/mole\times \text{volume of solution in liter}}$

$\text{volume of solution in liter}=7046664.579L=7.047\times 10^6L$

Therefore, the volume of solution will be, $7.047\times 10^6L$

6 0

3 years ago

avanturin [10]

Answer b, cellular and photosynthesis are reversible

3 0

3 years ago