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3 years ago

True or false:

1 answer:

6 0

The statement “The mechanical advantage of a compound machine is equal to the one simple machine that has the greatest mechanical advantage” is TRUE. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

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Why did geologists set fire to “the door to hell”

nydimaria [60]

Answer:

The Darvaza gas crater know as the "Door To Hell" is a natural gas crater. Geologists intenyionally set fire to it

Explanation:

Geologists intentionally set fire to it in order to prevent the spread of methane gas

3 0

3 years ago

If an experiment calls for 0.200mole acetic acid (Hc2H3O2)how many grams of glacial acetic acid do we need?

bija089 [108]

<h3>Molar mass:-</h3>

$\\ \sf\longmapsto HC_2H_3O_2$

$\\ \sf\longmapsto 1u+2(12u)+3(1u)+2(16u)$

$\\ \sf\longmapsto 1u+24u+3u+48u$

$\\ \sf\longmapsto 28u+48u$

$\\ \sf\longmapsto 76u$

$\\ \sf\longmapsto 76g/mol$

No of moles=0.2mol
Given mass=?

$\\ \sf\longmapsto No\:of\;moles=\dfrac{Given\:Mass}{Molar\:Mass}$

$\\ \sf\longmapsto 0.2=\dfrac{Given\:mass}{76}$

$\\ \sf\longmapsto Given\:Mass=0.2\times 76$

$\\ \sf\longmapsto Given\:Mass=1.52g$

7 0

3 years ago

PLEASE HELP QUICKLY!!

andreyandreev [35.5K]

THAT IS TOUGH GIRL HOPE YOU FIND THE ANSWER

4 0

3 years ago

This occurs when energy is added or removed

shutvik [7]

Answer:

melting

Explanation:

3 0

4 years ago

Why krypton and noble gas are not used in airships using the periodic table?

WITCHER [35]

Answer:

Since the noble gases are unreactive or inert, they are safe to use. Helium is used to fill balloons and airships, because it is much lighter that air and it will not catch fire. Neon is used in advertising signs. It will give red glow, but the color can be changes by mixing it with other gases.

Explanation:

3 0

3 years ago