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sukhopar [10]
3 years ago
12

Pls help me with this science question

Chemistry
2 answers:
lord [1]3 years ago
8 0

Answer:

D because as the seafloor grows wider, the continents on the opposite sides of the ridge move away from each other

Contact [7]3 years ago
8 0
The answer is d, i learned this aswell
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The acid dissociation constant, ka, of acetic acid is 1.8 x 10-5. what is the pka of this acid?
Orlov [11]

Answer:    approximately 4.74pKa is when you take the -log10 of your Ka. Therefore, taking the -log10(1.8*10-5), we get a value of approximately 4.74 for our pKa for acetic acid.

Explanation: hope this helps

4 0
3 years ago
in a titration 20.0 mL of 0.150 M NaOH(aq) Solution exactly neutralize is 24.0 mL of an HCl solution what is the concentration o
dusya [7]

Answer:

0.125

Explanation:

i took a test and got it right choosing this answer hopes this help

5 0
3 years ago
A positron is emitted when ____________. *
Darina [25.2K]
The correct answer is:
a positron is emitted when proton converts to a neutron.

The reaction can be described as following:
₁¹p (proton) → ₀¹n (neutron) + ₁°e (positron or ₁⁰β)
Positron is an antiparticle of a β particle (₋₁°β), which means it has an oposite charge to it, but same mass.

7 0
3 years ago
What is the oh- in a solution with a poh of 5.71
Rudik [331]

Answer:- The hydroxide ion concentration of the solution is 1.95*10^-^6 .

Solution:- The formula used to calculate pOH from hydroxide ion is:

pOH=-log[OH^-]

When pOH is given and we are asked to calculate hydroxide ion concentration then we multiply both sides by negative sign and take antilog and what we get on doing this is:

[OH^-]=10^-^p^O^H

pOH is given as 5.71 and we are asked to calculate hydrogen ion concentration. Let's plug in the given value in the formula:

[OH^-]=10^-^5^.^7^1

[OH^-] = 0.00000195 or 1.95*10^-^6

So, the hydroxide ion concentration of the solution is 1.95*10^-^6 .



3 0
3 years ago
When Iron (III) Choride is added to a solution of synthesized aspirin what is the method of detection
zubka84 [21]

Answer:

seeing the color change

Explanation:

3 0
3 years ago
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