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Lubov Fominskaja [6]
2 years ago
7

A student walks 2km in 30 minutes. What is the student's average speed in km/h

Chemistry
1 answer:
crimeas [40]2 years ago
4 0

Answer:

4km per hour

Explanation:

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Devices that mix air or oxygen with flammable gasses cannot be used unless approved by
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Flammable gases are gases that have the tendency to <u>explode (burst into flames)</u> when they come in contact with the <u>appropriate quantities of air, oxygen, or any suitable oxidant.</u>

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Devices that mix air or oxygen with flammable gasses cannot be used unless approved by an <u>authorized or approved personnel.</u>

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  • Examples of flammable gases are hydrocarbons such as <u>Propane, Acetylene</u>, e.t.c.

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To learn more, visit the link below:

brainly.com/question/3702349

8 0
2 years ago
How does the chemical formula for water influence its chemical properties?
OLga [1]

The chemical formula is composed of hydrogen and oxygen where the two atoms are bonded through hydrogen bond type of bonding. In this pair, the oxygen is the more electronegative atom hence the electrons are more directed to it. Because of this, this creates electron polarity which affects the chemical property of water.

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5 0
3 years ago
An oxide ion, O2–, has:
sergij07 [2.7K]

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6 0
2 years ago
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A mountain climber ascends a mountain to its peak. The peak is 12,740 ft avove sea level. The climber then decends 200 ft to mee
Luda [366]
A^2 + b^ = c^2

peak is 12,740, that's the highest point. the climber goes down so the leg is 200 then solve
3 0
3 years ago
Using the correct answer from Part B, calculate the volume of a rectangular prism with a length of 5.6 , a width of 2.1 , and a
erastova [34]

Answer:

The volume of the rectangular prism is 77.616 cm³

Explanation:

Here is the remaining part of the question:

Part B:

What value should you use as the area of the base when calculating the answer to Part C.

Part C:

Using the correct answer from Part B, calculate the volume of a rectangular prism with a length of 5.6 cm , a width of 2.1 cm , and a height of 6.6 cm Part B answer: 11.76 cm^2

Explanation:

The volume of a rectangular prism is given by:

V = l×w×h

Where V is the volume of the rectangular prism

l is the length of the rectangular prism

and w is the width of the rectangular prism

Recall that the Area (A) of the base of the rectangular prism can be calculated by using

A = l × w

Hence, the volume of the rectangular prism can also be calculated by substituting this into the equation to give

V = A × h

From the question, the correct answer from part B for the area of the base is 11.76 cm^2; and the height (h) is 6.6 cm

Hence, the volume of the rectangular prism is

V = A × h

V = 11.76 cm² × 6.6 cm

V = 77.616 cm³

5 0
3 years ago
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