When the water level of a stream or river exceeds its natural banks, it has reached its

2 answers:

7 0

C. FLOOD STAGE is reached when the water level of a stream or river exceeds its natural banks.

Flood stage is a level at which a body of water's surface has risen to a sufficient level to cause sufficient inundation in areas that are not normally covered by water, causing inconvenience or a threat to life and/or property.

Yuki888 [10]3 years ago

7 0

When the water level of a stream or river exceeds its natural banks, it has reached it flood stage.
#answerisC

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When the products of a reaction are hotter than the reactants:

kobusy [5.1K]

A.) The reaction is Exothermic

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3 years ago

Which of the following best defines molar mass?

coldgirl [10]

Answer:

D. the mass of one mole of a substance

Explanation:

The molar mass of a substance is the mass in grams of one mole of the substance.

For an element, the molar mass is the relative atoms mass expressed in grams.
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A car travels at a speed of 80 km/h. Which of the following is correct to convert the speed of the car to hm/s? [1 km = 10 hm, 1

amm1812

<u>Answer:</u> The correct answer is Option D.

<u>Explanation:</u>

We are given that car travels with a speed of 80 km/hr and we need to convert it into hm/s.

For that we use the conversions:

1 kilometer = 10 hectometer

And, 1 hour = 3600 seconds

To convert the quantity into hm/s, we multiply the numerator which is 80 by 10 to convert the whole quantity into hm/hr and now, to convert the result into hm/s finally, we divide the result by 3600.

$\Rightarrow (\frac{80km1}{hr})(\frac{10hm}{1km})=\frac{80km}{hr}\\\\\Rightarrow (\frac{80km}{hr})(\frac{1hr}{3600s})=\frac{80hm}{3600s}$