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pentagon [3]
3 years ago
6

Im sooooooooooooooooooooooooo cufused on science

Chemistry
1 answer:
Elena-2011 [213]3 years ago
6 0

Answer:

What do you need please to understand?

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Which compound is most likely to follow second-order kinetics in a substitution reaction? (ch3)2chbr ch3ch2br (ch3)3cch2br ch3br
Inga [223]

Substitution reaction<span> monitors second-order kinetics; that is, the degree of the reaction hinge on on the concentration of two first-order reactants. In the circumstance of bimolecular nucleophilic </span>substitution, these two reactants are the nucleophile and the haloalkane. So for this problem, the answer is ch3br.

4 0
3 years ago
Steve traveled the first 7 hours of his
const2013 [10]

Answer:

64

Explanation:

Distance traveled in 2 hours = 2 * 40 = 80 m

Distance traveled in 3 hours = 3 * 80 = 240m

Total distance covered = 240 + 80 = 320m

Total time = 2 + 3 =5 h

Hence avg speed = total distance covered / total time taken

= 320/5 = 64mph

5 0
3 years ago
________ is isoelectronic with helium. ________ is isoelectronic with helium. li- b4+ be mg2+ b3+
Rashid [163]
B3+ is isoelectronic with helium.
Isoelectronicity is the phenomenon whereby two or more molecular entities have the same number of electrons or similar electronic configuration regardless of the nature of the elements that are involved.
In the question given above, helium and B3+ have the same number of electrons. Helium has two electrons. Boron has five electrons but it has given away three of the electrons [that is why it has a charge of +3] and it now has only two left.

3 0
3 years ago
Read 2 more answers
8 Fe + Sg → 8 Fes<br><br> How many grams of FeS is produced from 0.3 mol Sg?
frozen [14]

Answer:

Explanation:

Molar ratio for Sg : FeS = 1:8

If there are 0.3 moles for Sg

Therefore, 0.3 × 8 =2.4 moles of FeS

Mass = Moles/ Mr

Mr of FeS = 56+32=88

So mass = 2.4/88

Mass= 0.027g

6 0
2 years ago
Enter the appropriate symbol for an isotope of potassium-39 corresponding to the isotope notation A/Z x
Taya2010 [7]
Appropriate symbol for an isotope of potassium - 39 corresponding to the isotope notion r A ZX
7 0
3 years ago
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