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sukhopar [10]
3 years ago
9

Can y’all help with this science question

Chemistry
2 answers:
meriva3 years ago
6 0

Answer:

It is either B or D in my opinion, B

Explanation:

zheka24 [161]3 years ago
3 0

Answer:

The answer is b hope this helps :)

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Soil is formed from<br><br> A. ancestors<br> B. offspring<br> C. Parent material<br> D. recipe
trasher [3.6K]
A i’m not to sure though
6 0
3 years ago
State the law of conservation of mass ? Describe landolt experiment
nasty-shy [4]
<h2>Mass preservation.</h2>

Explanation:

  • Mass of the system must remain the same over time, as the system's mass cannot alter according to the law of preservation of mass for any closed system.

Landolt Experiment -

  • Landolt was German chemist, He demonstrated the law of preservation of mass experimentally by utilizing H- glass tube filled with silver nitrate in appendage A and HCl corrosive in appendage B.
  • The reactants were blended and a white accelerate of Silver chloride was shaped alongside nitric corrosive. The tube is weighed once more.
8 0
3 years ago
Which characteristic is true of sexual reproduction but not of asexual reproduction?
Viktor [21]

Answer:

Sexual Reproduction involves two different parties

Explanation:

Asexual is the opposite, so it uses no one else to reproduce

4 0
3 years ago
Read 2 more answers
IF YOU DON'T ANSWER IT CORRECTLY OR IN AT LEAST A DECENT WAY&lt; I WILL REPORT!!! I'm giving 30 points for this!!!!
pantera1 [17]

Answer:

Color Change.

Production of an odor.

Change of Temperature.

Evolution of a gas (formation of bubbles)

Precipitate (formation of a solid)

Chicken turning color

Explanation:

I have when i have put a mint in the coke and it exploded and then another is when i dyed my water purple for no reason and when i heat water it start do evaporate or bubble and water turning into ice and when you know  you cook chicken the chicken is pink then when you season the chicken it turn golden brown and when you put milk and cereal together and if you leave it in to long it get soggy.

7 0
3 years ago
A mass of 2.20 g carbon monoxide is reacted with 4.86 g hydrogen to form methanol.CO(g) + 2 H2(g) → CH3OH(g)The reaction is perf
iogann1982 [59]

Answer:

The partial pressure in mm Hg for each of the species are:

PCO = 0

PH2 = 3874

PCH3OH = 347

The total pressure is 4221

Explanation:

We have to use Ideal gas equation PV = nRT and Partial pressure rule Total Pressure= ∑ Partial pressures.

We have following data:

T= 357K (85+272); nCO=0.078 (2.2/28); nH2 = 2.43 (4.86/2); R=62.36

With equation CO(g) + 2 H2(g) → CH3OH(g) we can calculate the amount of moles the reaction has finished. The limit reagent is CO because is consumed completely and moles CO in flask are 0. According to equation, every CO mol produces one CH3OH mol. That means 0.078 CO moles produces 0.078 CH3OH moles. From Ideal gas equation we have P=nRT/V.

Applying:

PH2=0.87*62.36*357/5=3874

PCH3OH =0.078*62.36*357/5=347

Total P = 3874+347=4221

I hope my answer helps you

7 0
3 years ago
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