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Soloha48 [4]
2 years ago
7

Iughy. hbh. bvjh. bh. bhi

Chemistry
2 answers:
Anastasy [175]2 years ago
8 0
Hey have a great day!
Arada [10]2 years ago
8 0

Answer:

english pls

Explanation:

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An ecosystem can be all populations of consumers eating each <br> other for food true or false?
kati45 [8]
I believe the answer is true
3 0
3 years ago
Read 2 more answers
Determine if each statement below is True or False regarding Arrhenius and Br∅nsted-Lowry definitions for acids and bases.
Vlad1618 [11]

Answer:

All statements are true

Explanation:

Arrhenius theory:-

The Arrhenius theory was introduced introduced by Swedish scientist named Svante Arrhenius in 1887.

According to the theory, acids are the substances which dissociate in the aqueous medium to produce electrically charged atoms ( may be molecule). Out of these species furnished, one must be a proton or the hydrogen ion, H^+.

Hence, statement 1 is correct.

Bronsted-Lowry base is the specie which accepts the proton form the medium. For example, Benzoate ion is the conjugate base of the benzoic acid. It is a Bronsted-Lowry base and the dissociation of benzoate ion can be shown as:-

C_6H_5COO^-_{(aq)} + H_2O_{(l)}\rightleftharpoons C_6H_5COOH_{(aq)} + OH^-_{(aq)}

Hence, statement 2 is correct.

Acetic acid will dissociate as:-

CH_3COOH\rightleftharpoons CH_3COO^-+H^+

Hence, statement 3 is also correct.

5 0
2 years ago
To prepare 250mL of calcium chloride solution with a molar concentration of 1.20mol/L, what mass of calcium chloride would be re
e-lub [12.9K]

Answer:

33.30 grams of CaCl2 will be required

Explanation:

Given,

Volume of solution, V= 250 ml

Molarity of solution, M= 1.20 mol/L

Molecular mass of CaCL2, S= 40+(35.5 X 2)= 111

We know,

Required mass, W= SVM/1000

Now,

W = (111 X 250 X 1.20)/1000

    = 33300/1000

    = 33.30

Therefore, 33.30 grams of Calcium Chloride will be required.

4 0
2 years ago
The relationship between molecular velocities and temperature is a _____ relationship.
elixir [45]
The correct answer that would best complete the given statement above would be option 2. <span>The relationship between molecular velocities and temperature is a direct relationship. In other words, their relationship is directly proportional. Hope that this is the answer that you are looking for. </span>
3 0
3 years ago
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(08.02 MC)
lesantik [10]

Answer:

d. 0.208 M NaOH

Explanation:

M[NaOH] = 23+16+1= 40g/mol

2.40L = 2.4dm3

M=m/Mv

M=20.0g/40g/mol×2.4dm3

M=20.0g ÷ 96

M= 0.208 M NaOH

3 0
3 years ago
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