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kow [346]
3 years ago
7

True or False: The % abundance of an element's isotopes always totals 100%.

Chemistry
2 answers:
GaryK [48]3 years ago
7 0

Answer:

True

Explanation:

Elena-2011 [213]3 years ago
3 0
Trueeeeeeee .... ...
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What do you understand by the corpuscular nature of chemistry​
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What is the answer for this please ?<br> HNO3 + OH →
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Answer:

HNO3(aq) + OH-(aq) → NO3-(aq) + H2O(l)

Explanation:

According to Bronsted-Lowry theory, an acid is a substance that donates a proton (H+) and produces a conjugate base while a base is a molecule or ion which accepts the proton.

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Read 2 more answers
nough of a monoprotic acid is dissolved in water to produce a 0.0199 M solution. The pH of the resulting solution is 2.64 . Calc
Debora [2.8K]

Answer:

Explanation

pH = 2.64

pH = - log [H+]

[H+] = 0.00229 M

HA = 0.0199 M

Dissociation equation

HA --> H+ + A-

Ka = [H+][A-]/[HA]

[H+] = [A-]

Ka = (0.00229^2)/0.0199

= 2.64 × 10^-4 M

5 0
4 years ago
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