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tamaranim1 [39]
3 years ago
9

Question 21 of 25

Chemistry
1 answer:
Nady [450]3 years ago
4 0

Answer:

B. Acid + base = salt + water

Explanation:

In accordance to the proposal of a scientist called Svante Arrhenius, an acid is a substance that increases the H+ concentration of a solution by dissociating into it while the base increases the OH- concentration of a solution by dissociating into it. Furthermore, Arrhenius stated that this two ions combine in an aqueous solution to give water.

Hence, Arrhenius acid-base reaction is the combination of an acid and base to produce salt and water as products. That is; Acid + base = salt + water.

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A sports utility vehicle gets an average gas mileage of 17.5 miles per gallon. A hybrid version of this SUV averages 21.5 mpg. I
ZanzabumX [31]

Answer:

<h2>The answer is $6.52.</h2>

Explanation:

Firstly, let's check out the given:

1. Sports Utility Vehicle's (Original SUV) avg gas mileage - 17.5 miles per gallon (mpg)

2. SUV's (Hybrid SUV) avg gas mileage - 21.5 miles per gallon (mpg)

3. Gas price - $2.59 per gallon

What is asked? How much would you save driving 237 miles in the hybrid SUV compared to the original SUV?

Next, you have to know how much gallons each car consumes upon driving 237 miles. You can do division in this step.

1. Original SUV = 237 miles ÷ \frac{17.5 miles}{gallon} = 13.54 gallons

2. Hybrid SUV = 237 miles ÷ \frac{21 miles}{gallon} = 11.02 gallons

Now that you know how much gallons each car consumes, you can now get the gas price for the gallons.

1. Original SUV = 13.54 gallons × $2.59 per gallon = $35.06

2. Hybrid SUV = 11.02 gallons × $2.59 per gallon = $28.54

In order to check the difference, you have to subtract.

  • $35.06 - $28.54 = $6.52 (this is the amount of money that you can save driving 237 miles in the hybrid SUV compared with the original SUV)

5 0
3 years ago
a man a man weighing 800 and climbs up a flight of stairs to a height of 15 m in 12 seconds what is the man's average power outp
8_murik_8 [283]

Answer:

  1 kW

Explanation:

We assume the man's weight is measured in newtons. Then the power expended is ...

  (800 N)(15 m)/(12 s) = (12000 N·m)/(12 s) = 1000 N·m/s = 1000 W

The man's average power output is 1 kilowatt.

8 0
3 years ago
Help please help help
dusya [7]

Answer:

Which one? 1, 2, 3, 4 ,5, 6, or 7?

Explanation:

4 0
4 years ago
According to dalton, if 2 grams of element xcombine with 4 grams of element yto form compound xy, how many grams of element xwou
Evgen [1.6K]
14g of element x is the answer.
3 0
3 years ago
As the toy car rolls away, it slows down. Why?
Morgarella [4.7K]
You need to show a picture or else we can’t help you
8 0
3 years ago
Read 2 more answers
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