Why does a reaction involving a catalyst finally stop

Answers

Answer 1

Answer:

Answer:

Explanation:

Catalysis is a process that accelerates chemical reactions due to molecules called catalysts, which provide ways to reach products that require less energy.

A catalyst intervenes in the reaction mechanism, but is not consumed. This means that the catalyst participates in some stage of the reaction, but then regenerates.

In addition, a catalyst is used in a small amount: a minimum mole percentage, with respect to reagents, is usually required to observe an increase in velocity.

There are three types of catalysis:

Homogeneous: the catalyst is present in the same phase as the species that react.
Heterogeneous: the catalyst and reagents are in a different phase.
Enzyme: occurs only in living beings, and in these cases the catalysts are enzymes.

The absence of a catalyst can make the reaction so slow that it never occurs. Therefore, when the catalyst of a reaction is removed, the reaction may stop.

Answer 2

Answer: When the catalyst is a reaction is removed by the reaction, this reaction will stop as there won't be any agent causing it anymore. !

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A solution that is at equilibrium must be(1) concentrated (3) saturated(2) dilute (4) unsaturated
Which statement best compares coastal ecosystems to open ocean ecosystems?Coastal ecosystems include abyssopelagic depths, and open ocean ecosystems do not. Coastal ecosystems have less sunlight, fewer nutrients, and less diversity than open ocean ecosystems. Coastal ecosystems have a greater range of water pressures than open ocean ecosystems. Coastal ecosystems have more sunlight, more nutrients, and higher levels of productivity than open ocean ecosystems
How many particles are in 3 moles?

6X, Y and Z are all gases that behave ideally and react according to the equation shown.
X(g) + 2Y(g) → 2Z(9)
When 3.0 mol of X and 3.0 mol of Y are placed inside a container with a volume of 1.0 dmº, they
react to form the maximum amount of Z.
The final temperature of the reaction vessel is 120°C.
What is the final pressure inside the reaction vessel?
А
4.49 x 10 Pa
B
9.80 x 106 Pa
C
1.47 x 10' Pa
D
1.96 x 10' Pa

Answers

Answer:

Explanation:

PV=nRT

n=nx + my

n=3mol+3mol

n=6mol

T=120+273=393K

P=nRT/V

P=6×0.0821×393/1

P=193atm

1atm=1.01325×10^5Pa

193atm=xPa

x=1.96×10^7Pa

All solids have an orderly internal structure with repeating bonding patterns between atoms, ions, or molecules. a. True
b. False

Answers

the answer is false cause i tried true first and got it wrong.

Answer:

False

Explanation:

Not all solids have an orderly internal structure, although some do which are called crystalline solids. Some examples are metals and table salt. Solids without a orderly internal structure are called amorphous solids. Examples of this are glass, plastics, and rubber.

how much potassium bromide, in grams, should be added to water to prepare 0.50 of solution with molarity of 0.125M?

Answers

Volume = 0.50 L

Molar mass KBr = 119.002 g/mol

Molarity = 0.125 M

Mass ( KBr) = ?

mass = molarity * molar mass * volume

mass = 0.125 * 119.002 * 0.50

mass = 7.437625 g of KBr

hope this helps!

Which formula represents a molecule with the most polar bond

Answers

HCl is the most polar bond.

Suppose you are asked to find the area of a rectangle that is 2.1-cm wide by 5.6-cm long. Your calculator answer would be 11.76 cm2 . Now suppose you are asked to enter the answer to two significant figures. (Note that if you do not round your answer to two significant figures, your answer will fall outside of the grading tolerance and be graded as incorrect.)

Answers

1) ALL non-zero numbers (1,2,3,4,5,6,7,8,9) are ALWAYS significant.2) ALL zeroes between non-zero numbers are ALWAYS significant.3) ALL zeroes which are SIMULTANEOUSLY to the right of the decimal point AND at the end of the number are ALWAYS significant.4) ALL zeroes which are to the left of a written decimal point and are in a number >= 10 are ALWAYS significant.

so it will be 11.76 = 12 bc 7 rounds up

What is the balanced equation of Ca3(PO4)2+ SiO+ C---> P+ CaSiO+ CO

Answers

Balanced chemical equation:

1 Ca3(PO4)2 + 3 SiO2 + 11 C = 2 P + 3 CaSiO + 11 CO

hope this helps!.

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