3 years ago

9. The broken appearance of pencil in a glass of water is due

Chemistry

1 answer:

shtirl [24]3 years ago

3 0

Yes it is due to refraction of light in water

You might be interested in

If a hockey puck is made to slide along a straight line on a completely frictionless surface, which statement about the motion o

JulsSmile [24]

The hockey puck will continue in the same speed in a continues straight line

3 0

3 years ago

Read 2 more answers

How many moles of glucose molecules?

muminat

1 molecule of glucose contains 6 atoms of C, 12 atoms of H , and 6 atoms of 0.1 mole of glucose contains 6 moles of C atoms , 12 moles of H atoms , and 6 moles of O atoms .

6 0

3 years ago

Why doesn’t silicone (IV) oxide conduct electricity

choli [55]

Answer:

answer it by yourself and own way

4 0

3 years ago

What is the volume (in dm3 of 1 mole of oxygen at 5 MPa and 200 K?

vodka [1.7K]

<u>Answer:</u> The volume of oxygen gas is $0.332dm^3$

<u>Explanation:</u>

To calculate the volume of the gas, we use the equation given by ideal gas equation:

$PV=nRT$

where,

P = pressure of the gas = 5 MPa = 5000 kPa (Conversion factor: 1 MPa = 1000 kPa)

V = Volume of gas = 3.34 L

n = number of moles of oxygen gas = 1 mole

R = Gas constant = $8.31dm^3\text{ kPa }mol^{-1}K^{-1}$

T = Temperature of the gas = 200 K

Putting values in above equation, we get:

$5000kPa\times V=1mol\times 8.31dm^3\text{ kPa }mol^{-1}K^{-1}\times 200K\\\\V=0.332dm^3$

Hence, the volume of oxygen gas is $0.332dm^3$

7 0

3 years ago

What is the activity of a 52.3 μCi sample of carbon‑14 in becquerels?

Llana [10]

Answer:

1935100 Bq

Explanation:

Let us recall that:

If 1 μCi can be equivalent to 37000 Bq

Then; the activity of 52.3 μCi will be:

$\dfrac{37000 \ Bq}{1 \ \mu Ci}\times 52.3 \ \mu Ci \\ \\ \\ \\ \mathbf{= 1935100 \ Bq}$

3 0

3 years ago