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icang [17]
2 years ago
11

Which method would you use to separate rice grains, which have accidentally been mixed with flour

Chemistry
2 answers:
ale4655 [162]2 years ago
6 0

Answer:

I would sieve them because the flour will go through but not the rice

Explanation:

Nat2105 [25]2 years ago
3 0

Answer: I would sieve them

Explanation: The flour would go through the holes but the rice won’t.

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Often computers are described as not intelligent. How does the mindstorm prove this?
n200080 [17]

Answer:

CH4+2O2-->2H2O+CO2 chemical reaction

3 0
3 years ago
How do solve for #13?What is the boiling point of a solution made by dissolving 1.0000 mole of sucrose in 1.0000 kg of water?
exis [7]

What is the boiling point of a solution made by dissolving 1.0000 mole of sucrose in 1.0000 kg of water?

The change in Boiling Point of water can be calculated using this formula:

ΔTb = i * Kb * m

Where i is the van't hoff factor (the number of particles or ions), the kb is a constant (boiling point elevation constant) and m is the molality of the solution.

The kb for water is always 0.515 °C/m. Kb = 0.515 °C/m

The value for i in this case is 1. Since sucrose is a covalent compound and it doesn't dissociate into ions. i = 1

The molal concentration of the solution can be found using this formula:

molality = moles of sucrose/kg of water

molality = 1.000 mol / 1.000 kg of water

molality = 1 m

Now that we know all the values, we can use the formula to find the change in the boiling point of water:

ΔTb = i * Kb * m

ΔTb = 1 * 0.515 °C/m * 1 m

ΔTb = 0.515 °C

Finally, we are asked for the boiling point of the solution, not the change. The boiling point of water at atmospheric pressure is 100.00 °C. If the boiling point rises 0.515 °C when we prepare the solution. The boiling point of the solution is:

Boiling point solution = Boiling point of water + ΔTb

Boiling point solution = 100.000 °C + 0.515 °C

Boiling point solution = 100.515 °C

Answer: The boiling point of the solution is 100.515 °C.

8 0
9 months ago
Jvjvjvjvjvjbjbkbjbjjbjb
Sladkaya [172]

Answer:

i don't understand your question.

Explanation:

Too confusing to read

8 0
3 years ago
The unit cm3 is used to express .?
Naddika [18.5K]
The unit cm3 is used to express a cube using cm
4 0
3 years ago
Read 2 more answers
Order the following from smallest to largest. Place the smallest value at the top of your list.
BlackZzzverrR [31]

Answer:

  1. 100g
  2. 1.000.000mg
  3. 10 kg

Explanation:

1.000.000mg = 1,000 g =1kg

100g =.01kg

10 kg

5 0
3 years ago
Read 2 more answers
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