4 years ago

What are three separation techniques to separate iron filings, salt and sand?

1 answer:

8 0

First Magnetic Separation to remove the iron fillings.

Next Dissolution of the sand and salt in water, and Filtration to separate the salt solution from the sand.

Evaporation of the salt solution to get back the salt.

You might be interested in

(06.03 MC) A 50.0 mL sample of gas at 20.0 atm of pressure is compressed to 40.0 atm of pressure at constant temperature. What i

oee [108]

Answer:

New volume is 25.0 mL

Explanation:

Let's assume the gas sample behaves ideally.

According to combined gas law for an ideal gas-

$\frac{P_{1}V_{1}}{T_{1}}=\frac{P_{2}V_{2}}{T_{2}}$

where, $P_{1}$ and $P_{2}$ represent initial and final pressure respectively

$V_{1}$ and $V_{2}$ represent initial and final volume respectively

$T_{1}$ and $T_{2}$ represent initial and final temperature (in kelvin) respectively

Here, $T_{1}=T_{2}$ , $V_{1}=50.0mL$ , $P_{1}=20.0atm$ and $P_{2}=40.0atm$

So, $V_{2}=\frac{P_{1}V_{1}T_{2}}{P_{2}T_{1}}=\frac{(20.0atm)\times (50.0mL)}{40.0mL}=25.0mL$

So, the new volume is 25.0 mL

6 0

3 years ago

In wintertime, herds of cattle often stand close together. This helps them get warmer because

stepladder [879]

Answer:

the bodies of animals produce heat

3 0

3 years ago

7. True or false. Where air masses collide, weather changes

ella [17]

Answer:true

Explanation:

8 0

3 years ago

7. Proteins are built from 20 amino acids. How many different proteins with 50 amino acid residues are possible?

navik [9.2K]

That would be 20 to the 50th power.
You’re making a protein consisting of 50 amino acid subunits. and u have 20 choices for each place. So 20^50.

Hope this helps

3 0

3 years ago

Read 2 more answers

Please answer this question only if you know the answer! 30 points and brainliest!

gulaghasi [49]

i am 50\ 50 on A and C

4 0

3 years ago

Read 2 more answers