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k0ka [10]
3 years ago
6

At which of the four labeled points on the titration curve below do you expect to find the highest concentration of hydroxide

Chemistry
1 answer:
Lostsunrise [7]3 years ago
8 0

Answer:

D.

Explanation:

Hydroxide ions are produced when acid reacts with a base under a Ph value of more than 7. Hydroxide ions are negatively charged ions which are released in the aqueous solution during titration process. It a oxygen and hydrogen atom covalent bond.

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Dựa vào lý thuyết MO Huckel, hãy viết định thức thế kỷ cho phân tử khảo
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Answer:

tải ứng dụng hóa học về có tất dạng MO nha bạn

3 0
3 years ago
. How many grams of water would require 4400 joules
Alja [10]

Answer:

The specific heat of water is 4.18 J/g C.

Explanation:

q

=

m

C

s

Δ

T

Never forget that!

2200

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m

⋅

4.18

J

g

⋅

°

C

⋅

66

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5 0
3 years ago
Which of the following is not involved in bringing materials into cells?
Ket [755]

Answer:

b

Explanation:

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8 0
3 years ago
Read 2 more answers
Multiple choice-- please help!
kvasek [131]

The rate law for the reaction : r=k.[A]²

<h3>Further explanation</h3>

Given

Reaction

A ⟶ B + C

Required

The rate law

Solution

The rate law is a chemical equation that shows the relationship between reaction rate and the concentration / pressure of the reactants

For the second-order reaction it can be:

1. the square of the concentration of one reactant.

\tt r=k[A]^2

2. the product of the concentrations of two reactants.

\tt r=k[A][B]

And the reaction should be(for second order) :

2A ⟶ B + C

Thus, for reaction above (reactant consumption rate) :

\tt r=-\dfrac{\Delta A}{2\Delta t}=k[A]^2

6 0
3 years ago
(a) 9 cm + 2.8 cm = 11.8
Elden [556K]
 <span>For addition and subtraction you round to decimal places. 
Round the number so that it has the same number of decimal places as the number in your data that has the least number of decimal places. 

9 cm + 2.8 cm = 11.8 cm 
the 9 has no decimal places so 
= 12 cm 
(this is rounded to 0 decimal places.) 
(It has 2 sig figs) </span>
3 0
3 years ago
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