3 years ago

PLEASE ANSWER

Chemistry

1 answer:

Vikki [24]3 years ago

4 0

D) refracted
because , the light changes direction.. causing the penny to look bigger than it is.

You might be interested in

Three blocks are shown here pls HELPPPP:

White raven [17]

Answer: I am confident the answer is B

Explanation:

forgive me if im wrong

5 0

3 years ago

Calcium chloride is added to the roadways after a snowstorm. Which colligative property is being showcased here?

vlabodo [156]

Answer:

Option (D) freezing point depression

Explanation:

Calcium chloride is added to the roadways after a snowstorm because it reduces the freezing point of the ice. Further more, it has been observed that the calcium chloride also produces enough heat which enhances the melting of the ice as it produces an exothermic reaction.

6 0

3 years ago

The atmospheric pressure on the surface of Venus is 6.84X10^4. Calculate the atmospheric pressure in atm and torr. Round each of

quester [9]

Answer:

0.675 atm

513 Torr

Explanation:

Given is that, the atmospheric pressure on the surface of Venus is

6.84 X 10⁴ Pa.

1 atm (atmospheric pressure) is equal to 101325 pascal (Pa).

To convert divide the pressure value by 101325.

Pressure in atm = $\frac{6.84 \times 10^{4} }{101325}$

= 0.675055 atm

Rounding it off to 3 significant digits: 0.675 atm

Now, one Torr is 133.322 Pa. For conversion, divide the pressure value by 133.322.

Pressure in Torr = $\frac{6.84 \times 10^{4} }{133.322}$

=513.04219 Torr

Rounding it off to 3 significant digits: 513 Torr

5 0

2 years ago

What happens after excitation in spectroscopy.<br>

Bess [88]

Answer:

When a molecule is excited to a higher state it often ends up in its lowest excited state S1 and then emits radiation.

4 0

3 years ago

It's #9 Pls help will give 100 points and brainiest

Vinil7 [7]

heating is repeated to ensure all water molecules have evaporated

7 0

2 years ago