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Chemistry

2 answers:

Anika [276]3 years ago

8 0

Answer:

This is hilarious, every time I ignite, they feed me water, little do they know this heat will defeat, and hydrogen only makes me stronger!

Explanation:

When Hg is burning, it uses the oxygen from H2O and turns it into hydrogen gas, and that contributes to the burning.

Vika [28.1K]3 years ago

6 0

Answer:

just so you know the airplane one isnt funny

a small twin otter takes of from a big airport in hawaii.45 seconds after takeoff the plane suddenly dives. the cause corroded alluminum control lines going ot the rear stabalizer which cause it to go slack meaning the flaps fell down cause a sudden and uncontrolabe. mulitple reasons for the rope breaking corrosion rubbing and forcfull (jet blast) where jet airliners exuast hit other airplanes and cause extreme force.

Explanation:

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The products of photosynthesis are the starting materials of cellular respiration true or false

notsponge [240]

True....

Explanation

Cells use oxygen to release energy during photosynthesis/chlorophyll/cellular respiration. For photosynthesis, the starting materials are water and carbon dioxide, and the products are sugar and oxygen. For cellular respiration, the starting materials are oxygen and sugar, and the products are carbon dioxide and water.

4 0

2 years ago

A naturally occurring element consists of three isotopes. The data for the isotopes are:

max2010maxim [7]

(46.972* 69.472% + 48.961*21.667% + 49.954*8.8610%)/100% =

= 46.972* 0.69472 + 48.961*0.21667 + 49.954*0.088610 =47.667 u

7 0

3 years ago

B- How many electrons does sodium have?

ziro4ka [17]

Answer: sorry I’m late but it is 11 electrons

Explanation:

7 0

3 years ago

Which chemical class does phenobarbital belong to?

drek231 [11]

Phenobarbital is derivative of Barbituric Acid and Barbituric Acid is derivative of Urea. (structures shown in Fig below)

Urea has H₂N- group attached to Carbonyl Group (C=O), and such class of comounds conataining H₂N-C=O bond are called as Amides.

Result:
So, Phenobarbital belongs to Amides.

3 0

2 years ago

if the temperature is constant what change in volume would cause the pressure of an enclosed gas to increase by a factor of 4

mezya [45]

P1V1=4P1V2
V2/V1= P1/4P1
V2/V1= 1/4
V2=1/4*V1
volume will decrease by factor 1/4

4 0

3 years ago

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