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DedPeter [7]
3 years ago
13

A student uses a variety of techniques to separate four different compounds from 2.10 g of a mixture. After separation of the

Chemistry
1 answer:
Vilka [71]3 years ago
6 0

Answer:

5y.352.

hankkkakk

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Consider the following reaction mechanism:
snow_lady [41]

Answer:

  • <em><u>Step 2 (the slow step).</u></em>

Explanation:

The rate-determining step is always the slow step of a mechanism.

That is so, because it is the slow step which limits the reaction.

Imaging that for assembling a toy you have process of three steps:

  • 1. order ten pieces, which you can do in 1 minute: meaning that you can order order the pieces for 60/1 = 60 toys in 1 hour.

  • 2. glue the pieces and hold the toy until the glue hardens, which takes 1 hour: meaning finishingh 1 toy in 1 hour.

  • 3. pack the toy, which takes 2 minutes: meaning that you can pack 60/2 = 30 toys in one hour.

The time to glue and hold one toy until the glue hardens determines that you can assemble 1 toy in 1 hour and not 60 toys or 30 toys.

Thus, the step that determines the rate at which the reaction happens is the slowest step: step 2.

3 0
3 years ago
Read 2 more answers
The gravitational force between which two objects would be the most difficult to notice? A. The moon and the earth b. The moon a
Ghella [55]

Answer:

d. A water particle and an air particle

Explanation:

The force of gravity (F) between two objects of masses m1 and m2 and separated by a distance r is given as:

F = G\frac{m1*m2}{r^{2} }

where G is the gravitational constant

This force is therefore, directly proportional to the masses and inversely related to the distance between them.

Based on the given options, since the masses of the water and air particles are very small (masses of earth, moon and sun is relatively huge), the gravitational force between them would be negligible and difficult to measure.

5 0
3 years ago
Select the correct answer.
Norma-Jean [14]

Answer:

a t o m i c w e i h g t

B

Explanation:

  1. a to m i c w e i g h t
7 0
3 years ago
Which group of elements will form molecular compounds? (Choose all that apply)
NISA [10]

Answer:

hope you understand and your answer is correct

8 0
3 years ago
Complete the chemical change. Na → Na+ <br><br> a.)2e-<br> b.)proton<br> c.)1e-
statuscvo [17]
C) 1e- is the answer because you need that in order to balance the charges
5 0
3 years ago
Read 2 more answers
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