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3 years ago

7

compare the C2-C3 bonds in propane,propene, and propane.Should they be any different with respect to either bond length or bond

strength?If so,how should they vary.

1 answer:

harkovskaia [24]3 years ago

3 0

Answer: one by one

Explanation:

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We want to find how much charge is on the electrons in a nickel coin. follow this method. a nickel coin has a mass of about 5 g.

Lady bird [3.3K]

The mass of a nickel coin is 5 g.
1 mol of Ni weighs 58 g. 1 mol contains 6.022 x 10²³ atoms of Ni.
therefore in 58 g there are 6.022 x 10²³ atoms of Ni
then in 5 g the number of Ni atoms are - 6.022 x 10²³ /58 x 5 = 5.2 x 10²² Ni atoms
Therefore number of Ni atoms are 5.2 x 10²² atoms in a nickel coin

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3 years ago

Draw a mechanism for the reaction of water with formic acid. In the box to the left, draw any necessary curved arrows. Show the

dsp73

Answer:

See explanation

Explanation:

When water reacts with formic acid, The following equilibrium is set up;

HCOOH(aq) + H20(l) ⇄ HCOO-(aq) + H30+(aq)

This is because, the water abstracts a proton from formic acid to form its conjugate base, formate ion.

At equilibrium, the forward is favored.

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3 years ago

david’s mom wants to calculate how much it will cost to drive from los angeles, ca, to san francisco, ca. gas costs $4.00 a gall

grin007 [14]

She needs to know the distance from LA to SF.

Call that distance x. Then you can calculate the cost from:

# of gallons consumed: x miles / 38 miles/ gallon = (x/38) gallons

After that,

cost = # gallons * cost per gallon = (x/38) gallons * 4 $/gallon = 4x/38 $

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3 years ago

Read 2 more answers

Battery acid has a density of 1.285 g/mL and contains 38.0% sulfuric acid by mass. The car battery contains 1.45 L of battery ac

larisa86 [58]

Answer: 708.2 grams

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.

Given : 38 g of $H_2SO_4$ is dissolved in 100 g of solution.

Density of solution = 1.285 g/ml

Volume of solution = $\frac{mass}{density}=\frac{100g}{1.285g/ml}=77.8ml$

Thus if 77.8 ml of $H_2SO_4$ contains = 38 g of $H_2SO_4$

1.45L= 1450 ml of $H_2SO_4$ contains = $\frac{38}{77.8}\times 1450=708.2 g$ of $H_2SO_4$

Therefore, the mass of the sulfuric acid in a car battery is 708.2 g

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3 years ago

What is the formula for nitrogen monoxide?

WINSTONCH [101]

The answer is NO.

Mono- means 1, so monoxide would indicate that there is 1 oxygen.

The N is double bonded to the O:

N=O

And has an unpaired set of electrons

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3 years ago