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Luda [366]
3 years ago
11

A reproducible measurement is an accurate one. A. True B. False

Chemistry
2 answers:
Stolb23 [73]3 years ago
7 0

reproducible means copyied hence every mesurment can be even slightly different so

the answer is B False also i took the test

4vir4ik [10]3 years ago
5 0
The answer is
B. False
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X is usually representing time so years, days, etc
7 0
3 years ago
For hydrocyanic acid, HCN, Ka = 4.9 × 10-10. Calculate the pH of 0.20 M NaCN. What is the concentration of HCN in the solution?
gogolik [260]
By using the ICE table :

initial    0.2 M            0           0
change -X                 + X           +X
Equ     (0.2 -X)            X               X

when Ka = (X) (X) / (0.2-X)
so by substitution:

4.9x10^-10 = X^2 / (0.2-X) by solving this equation for X 
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∴[HCN] = 10^-6

and PH = -㏒[H+]
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3 0
3 years ago
Read 2 more answers
Place each statement in the column of the particle that it best describes.<br> Refer To Photo
MrRa [10]

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1     2

3    4

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5 0
3 years ago
How many molecules of BH3 are in 14.32 grams of BH3?
kkurt [141]

Answer:

6.23 x 10^23 molecules

Explanation:

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Finally, to figure out the number of molecules, we multiply 1.03 by Avogadro's number which is 6.022x10^23 and we get 6.23x10^23 molecules.

3 0
3 years ago
Atomic mass is typically expressed in
Andre45 [30]

Answer:

amu

Explanation:

Please mark as brainleist

8 0
2 years ago
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