What is the entry qualification of optician

Chemistry

1 answer:

IRISSAK [1]3 years ago

5 0

Answer:

Opticians typically have a high school diploma or equivalent and receive some form of on-the-job training. Some opticians enter the occupation with an associate's degree or a certificate from a community college or technical school. About half of the states require opticians to be licensed.

You might be interested in

What happens when warm air rises? (5 points)

Alika [10]

The movement creates a difference in air pressure.

When warm air rises it goes up to top of atmosphere.
The cold air remains at bottom.
Which makes a blank space in between.
To fill that space air comes from all sides
Which makes difference in pressure.
It becomes reason for creation of Tornado, hurricane,Cyclones etc

7 0

3 years ago

Read 2 more answers

The reaction of nitrogen gas and oxygen gas to form nitrogen monoxide gas is shown below. If the measured concentrations of all

Anettt [7]

Answer:

The forward reaction is occurring at a faster rate than the reverse reaction.

Explanation:

Reaction quotient (Q) of the given reaction is -

$Q=\frac{[NO]^{2}}{[N_{2}][O_{2}]}$

where [NO], $[N_{2}]$ and $[O_{2}]$ represents concentrations of respective species at a certain time.

Here $[N_{2}]$ = 0.80 M, $[O_{2}]$ = 0.050 M and [NO] = 0.10 M

So, $Q=\frac{(0.10)^{2}}{(0.80)\times (0.050)}=2$

Hence $Q> K$

It means that forward reaction is faster than reverse reaction at that point. Because then only concentration of NO is higher than concentrations of $[N_{2}]$ and $[O_{2}]$ which makes Q higher than K.

4 0

3 years ago

Which ionic compound is water soluble? CuS NH4 NO3 SrSO4 ZnF

katovenus [111]

Just use a solubility chart! Find the cation on the far left and the anion on the top and find where they connect. If it says "s," it is not soluble. If it says "aq," it is soluble. Here, ZnF (Zinc Fluoride) is soluble. Hope that helps! :)

P.S. Not all of the compounds above are on this particular chart. In future problems, just google "solubility chart" until you find one with all of the compounds you need to look at.