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3 years ago

Why should batteries be stored in the fridge when not being used?

Chemistry

2 answers:

densk [106]3 years ago

5 0

Answer:

because the partieals are cold are pushed away

Explanation:

Tpy6a [65]3 years ago

4 0

Answer:

it helps them retain their charge longer

Explanation:

You might be interested in

Calculate the nuclear binding energy for 5525mn in megaelectronvolts per nucleon (mev/nucleon).

r-ruslan [8.4K]

To solve this question, let us first calculate how much all the nucleons will weigh when they are apart, that is:
Mass of 25 protons = 25(1.0073) = 25.1825 amu 

Mass of neutrons = (55-25)(1.0087) = 30.261 amu

So, total mass of nucleons = 30.261+25.1825 = 55.4435 amu

Now we subtract the mass of nucleons and mass of the Mn nucleus:
55.4435 - 54.938 = 0.5055 amu

This difference in mass is what we call as the mass defect of a nucleus. Now we calculate the binding energy using the formula:

E=mc^2 

But first convert mass defect in units of SI (kg):
Δm = 0.5055 amu = (0.5055) / (6.022x10^26)
Δm = 8.3942x10^-28 kg

Now applying the formula,
E=Δm c^2
E=(8.3942x10^-28)(3x10^8)^2
E=7.55x10^-11 J

Convert energy from Joules to mev then divide by total number of nucleons (55):

E = 7.55x10^-11 J * (6.242x10^12 mev / 1 J) / 55 nucleons

E = 8.57 mev / nucleon

8 0

3 years ago

Type the correct answer in each box.

krok68 [10]

Answer:

2KI → 2K + I₂

Explanation:

(not my definition, but form a trustworthy source)

The definition of a decomposition reaction is:

a chemical reaction in which one reactant breaks down into two or more products.

In this case, potassium iodide will decompose into potassium and iodine.

2KI → 2K + 2I

2 Potassium and 2 Iodine on both sides, so equation is balanced.

Or, it can be written as 2KI → 2K + I₂

8 0

2 years ago

Which of the following best describes the overall purpose of cellular respiration?

dimaraw [331]

The overall process of cellular respiration is to use the energy or ATP in the sugars in your body, to supply your cells with with oxygen and water.

5 0

4 years ago

How many electrons make up an octet?

soldi70 [24.7K]

It’s 8 electrons. “octa” means 8

5 0

3 years ago

(a) How many stereoisomers are possible for 4,4-dimethyl-1,2-cyclopentanediol?

Monica [59]

Answer:

(a) 4 stereoisomers: (1R,2S) 4,4-dimethylcyclopentane1,2-diol; (1R,2S) 4,4-dimethylcyclopentane1,2-diol; (1S,2S) 4,4-dimethylcyclopentane1,2-diol; (1R,2R) 4,4-dimethylcyclopentane1,2-diol. (b) (1R,2S) 4,4-dimethylcyclopentane1,2-diol; (1R,2S) 4,4-dimethylcyclopentane1,2-diol (c) No, they are optically inactive.

Explanation:

(a) The stereoisomers possible for 4,4-dimethyl-1, 2-cyclopentanediol are (1R,2S) 4,4-dimethylcyclopentane1,2-diol; (1R,2S) 4,4-dimethylcyclopentane1,2-diol; (1S,2S) 4,4-dimethylcyclopentane1,2-diol; (1R,2R) 4,4-dimethylcyclopentane1,2-diol. Their structures are shown in the attached file.

(b) The oxidation reaction that occurs between 4,4-dimethylcyclopentene and osmium tetroxide produces (1R,2S) 4,4-dimethylcyclopentane1,2-diol; (1R,2S) 4,4-dimethylcyclopentane1,2-diol. Their structures are also shown in the attached file.

(c) The products of the oxidation reaction in (b) are optically inactive because the compounds contain plane of symmetry that makes them optically inactive compound.

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5 0

4 years ago