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IgorLugansk [536]
3 years ago
9

Which property is typical of an acid ?

Chemistry
1 answer:
LenaWriter [7]3 years ago
6 0
Properties of acids are turns blue litmus red. pH is below 7 , reacts with metals to give off hydrogen gas and they have a sour taste. So option B will be the answer. 
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What is the maximum number of electrons that can be contained in a f subshell?
schepotkina [342]
The answer is 14, 14 electrons can be contained in a f subshell.
8 0
4 years ago
The volume of a cube is calculated by using the following formula: l x h x w. The length (l), height (h), and width (w) of a met
aliya0001 [1]

Answer:

8.909466637830

Explanation:

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8 0
3 years ago
Why does the atomic radius decrease across a period
IgorC [24]
Because the nuclear charge increases across a period and so it has a stronger pull on the outer electrons and will pull in the radius
4 0
3 years ago
A 111.6 gram sample of iron (MW=55.8) was heated from 0 degrees C to 20 degrees C. It absorbed 1004 Joules of energy. What is th
qwelly [4]
Use the equation q=ncΔT.
q= heat absorbed our released (in this case 1004J)
n= number of moles of sample ( in this case 2.08 mol)
c=molar heat capacity 
ΔT=change in temperature (in this case 20°C)
You have to rewrite the equation for c.
c=q/nΔT
c=1004J/(2.08mol x 20°C)
c=24.1 J/mol°C
 
I hope this helps
7 0
3 years ago
The thallium Subscript 81 Superscript 208 Baseline Tl nucleus is radioactive, with a half-life of 3.053 min. At a given instant,
Genrish500 [490]

Answer: (E) 300 bq

Explanation:

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

Radioactive decay process is a type of process in which a less stable nuclei decomposes to a stable nuclei by releasing some radiations or particles like alpha, beta particles or gamma-radiations. The radioactive decay follows first order kinetics.

Half life is represented by t_{\frac{1}{2}

Half life of Thallium-208 = 3.053 min

Thus after 9 minutes , three half lives will be passed, after ist half life, the activity would be reduced to half of original i.e. \frac{2400}{2}=1200, after second  half life, the activity would be reduced to half of 1200 i.e. \frac{1200}{2}=600,  and after third half life, the activity would be reduced to half of 600 i.e. \frac{600}{2}=300,

Thus the activity 9 minutes later is 300 bq.

7 0
3 years ago
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