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Pavel [41]
3 years ago
14

Which combination of name and formula is NOT correct. A. Perchloric acid, HClO4(aq) B. Potassium peroxide, K2O2(s) C. Barium hyd

roxide, Ba(OH)2(aq) D. Iodic acid, HI(aq) E. Phosphoric acid, H3PO4(a
Chemistry
1 answer:
andrew-mc [135]3 years ago
3 0

Answer:

Answer: D

Explanation:

These all acids are very frequently used in the chemistry so try to remember all this kind of acid.

iodic acid is HIO_3 and HI is hydroiodic acid

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g 1.000 atm of oxygen gas, placed in a container having a pinhole opening in its side, leaks from the container 2.14 times faste
Ivan

The question is incomplete, the complete question is;

1.000 atm of Oxygen gas, placed in a container having apinhole opening in its side. leaks from the container 2.14 timesfaster thatn 1.000 atm of an unknown gas placed in this sameapparatus. Which of the following species could be theunknown gas?

A. CL2

B. SF6

C. Kr

D. UF6

E. Xe

Answer:

SF6

Explanation:

From Graham's law;

Let the rate of diffusion of oxygen be R1

Let the rate of diffusion of unknown base be R2

Let the molar mass of oxygen by M1

Let the molar mass of unknown gas be M2

Hence;

R1/R2 = √M2/M1

So;

2.14/1 = √M2/32

(2.14/1)^2 = M/32

M= (2.14/1)^2 × 32

M= 146.6

This is the molar mass of SF6 hence the answer above.

7 0
3 years ago
What does atomic structure mean?
alukav5142 [94]
The definition of atomic structure is the positively charged nucleus and the negatively charged electrons circling around it, within an atom.
5 0
3 years ago
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How does glucose get into the mitochondria in autotrophs?
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The answer is by osmosis
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3 years ago
A wooden object from the site of an ancient temple has a carbon-14 activity of 10 counts/min compared with a reference piece of
Arada [10]

Answer:

Age of the ancient wood object is 11460 years.

Explanation:

We know that half-life for carbon-14 is 5730 years. That means the activity of the sample will decrease to half every 5730 years.

Now we construct the following table:

activity (counts/min)        age of the wooden object

      40                                                  0

      20                                               5730

      10                                                11460

4 0
3 years ago
Which is most likely to stay solid at room temperature
aleksandr82 [10.1K]

Answer:

Food

Explanation:

Food is likely to stay solid at room temperature

4 0
4 years ago
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