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2 years ago

Any corrections I need to make? Please help! And provide an actual answer please! Thank you!

Chemistry

1 answer:

lara [203]2 years ago

7 0

Answer:

nah you good

Explanation:

it's perfect don't doubt yourself

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klio [65]

Answer:

Oil spills

Explanation:

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2 years ago

Write the reaction rate expressions for the reaction below in terms of the disappearance of the reactants and the appearance of

wlad13 [49]

Answer: rate of disappearance of hydrogen = $-\frac{1d[H_2]}{2dt}$ rate of disappearance of oxygen = $-\frac{1d[O_2]}{1dt}$

rate of appearance of water = $+\frac{1d[H_2O]}{2dt}$

Explanation:

Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

$2H_2(g)+O_2(g)\rightarrow 2H_2O(g)$

The rate law is:

$Rate=k[H_2]^2[O_2]^1$

k= rate constant

The rate in terms of reactants is given as negative as the concentration of reactants is decreasing with time whereas the rate in terms of products is given as positive as the concentration of products is increasing with time.

rate of disappearance of hydrogen= $-\frac{1d[H_2]}{2dt}$

rate of disappearance of oxygen = $-\frac{1d[O_2]}{1dt}$

rate of appearance of water = $+\frac{1d[H_2O]}{2dt}$

6 0

2 years ago

Introduction: Reaction rates are also influenced by surface area and concentration. The surface area of a solid is a measure of

Yuki888 [10]

Answer:

See explanation

Explanation:

Surface area has to do with the number of solid particles that are exposed at a given time and is capable of colliding with other reactant particles. When more surface area is exposed for reaction, then it means that more particles are likely to collide with each other leading to faster chemical reaction rates. When few particles are exposed for reaction (low surface area) then less collisions occur and the rate of reaction is decreased.

Similarly, concentration refers to the amount of substance present. The greater the amount of substance present, the greater the likelihood of collision between particles and the greater the rate of reaction and vice versa.

7 0

2 years ago

What units are used to measure mass and weight?

azamat

Answer: Milligrams ,grams ,kilograms ,quintals, tons

Explanation: Hope this helps

6 0

2 years ago

Read 2 more answers

Which is true about the transfer of electrons? Metals tend to gain electrons to form positive ions. Metals tend to lose electron

Over [174]

Answer: