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Helga [31]
3 years ago
8

Will the fire started by burning magnesium and methane let out by a fire extinguisher?! THIS IS EMERGENCY HERE!

Chemistry
2 answers:
xxMikexx [17]3 years ago
7 0

Answer:

uh yes?

Explanation:

gogolik [260]3 years ago
7 0

Answer:

i think so just try it

Explanation:

good luck

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an enzyme is a catalyst used by living things to promote and regulate chemical reactions. What is the most likely enzyme for the
creativ13 [48]
The answer is Activation Energy
5 0
3 years ago
3. Students measured the mass of the reactants and products for a combustion reaction they observed.
coldgirl [10]

Answer:

A. Students made a measurement error, because ending with more products is impossible.

Explanation:

The law of conversation of matter tells us that in a chemical reaction, matter is never created or destroyed, it's simply converted from one form to another. So the mass of reactants should always equal the mass of the products in a chemical reaction. If there is excess mass in the product, the students have made an error of some kind.

4 0
3 years ago
I need help? Please? ​
agasfer [191]

Question: What is shown on the photo above?

Choices: A) An aquifer B) A sinkhole C) A watershed D) Karst topography

Answer: <u>It's C) A watershed because A. is where the water is underground, B. is a sinkhole and it has a big hole that is big or sometimes small, and D. Is where it has a little crack in it and it goes underground. </u>

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3 0
4 years ago
N2+ 3 H2 -&gt; 2 NH3 If 12.0 g of H2 reacts with excess N2. then what mass of NH3 will be produced?
Vinil7 [7]
Hey mate here is pratyush for your help from India
..

your answer is in the attachment ..

the answer is 68g of NH3 will be produced.

hope it helps you.

be brainly

7 0
3 years ago
The decomposition of dinitrogen pentoxide, N2O5, to NO2 and O2 is a first-order reaction. At 60°C, the rate constant is 2.8 × 10
Ugo [173]

Answer:

The correct option is a.

Explanation:

2N_2O_5\rightarrow 4NO_2 + O_2

125 kPa

125kpa - 2x                            4x    x

Total pressure after reaction = 176 kPa

125 kPa - 2x + 4x + x = 176 kPa

x = 17

125 kpa - 2x = 125 kPa - 2(17) = 91 kPa

Initial pressure of the dinitrogen pentoxide ,(at t=0) =P_o= 125 kPa

Final pressure of the dinitrogen pentoxide, (at t = t) = P = 91 kPa

The rate constant is = k = 2.8\times 10^{-3} min^{-1}

t=\frac{2.303}{k}\log\frac{P_o}{P}

t=\frac{2.303}{2.8\times 10^{-3} min^{-1}}\log\frac{125 kPa}{91 kPa}

t=113.3969 minutes\approx 113 minutes

It will take 113 minutes for the total pressure to reach 176 kPa.

8 0
3 years ago
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