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2 years ago

Does the amount of air change the time it will take to burn completely?

Chemistry

1 answer:

Veronika [31]2 years ago

8 0

Explanation:

The answer is yes. Adding O2 to a fire, feeds a fire creating bigger flames or almost completely burning a building,.. etc....

depending on what kind of structure.

little O2 usually makes a fire burn itself out because there is not enuf oxygen or its contained...

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7) Convert 8.34 x 10^-6 Kg to cg"

marusya05 [52]

The answer is .00834 cg hopefully this helped

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2 years ago

A meteor falls toward Earth's surface. Given that the acceleration due to

ICE Princess25 [194]

Answer:

E = 147000 J

Explanation:

Given that,

The mass of meteor, m = 50 kg

The altitude of the meteor, h = 300 m

We need to find the potential energy of the meteor. The formula for the potential energy is given by :

$E=mgh$

Put all the values,

$E=50\times 9.8\times 300\\\\E=147000\ J$

So, the required potential energy is equal to 147000 J.

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2 years ago

Question 7: *

Otrada [13]

Answer:

Explanation:

Thermal, chemical and electromagnetic is the right answer

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2 years ago

What is the pH of a weak acid solution that has an [H+] of 2.1 x 10^-6 M?

yaroslaw [1]

Answer:

5.7 pH

Explanation:

To find pH when given [H+], you use this formula: pH = -log[H+]

-log * 2.1e-6 = 5.6778 = 5.7 pH

3 0

2 years ago

As you move to a higher elevation (e.g. in the mountains), the air pressure drops significantly. In turn,

soldi70 [24.7K]

The answer is C ( The evaporation rate of water increases at all temperatures causing an increase in volume.)

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2 years ago