All categories

1 year ago

3.The simplest way of separating visible solid impurities that do not dissolve in water from water

1 answer:

3 0

The simplest way of separating visible solid impurities that do not dissolve in water from water is by using a sieve (option A).

<h3>What is sieving?</h3>

Sieving is a act of passing substances through a sieve, which is a device with a mesh bottom to separate, in a granular material, larger particles from smaller ones, or to separate solid objects from a liquid.

Sieving is a physical method of separation widely used to separate substances that cannot dissolve in a liquid from that liquid.

Therefore, the simplest way of separating visible solid impurities that do not dissolve in water from water is by using a sieve.

Learn more about sieving at: brainly.com/question/2760394

#SPJ1

You might be interested in

Match the following terms:

AURORKA [14]

Answer:

See below ~

Explanation:

A to B

⇒ Solid Phase

==========================================================

B to C

⇒ Melting

==========================================================

C to D

⇒ Liquid Phase

==========================================================

D to E

⇒ Vaporizing

============================================================

E to F and beyond

⇒ Gas Phase

3 0

2 years ago

What is a reaction rate?

Kay [80]

Answer:

Reaction rate, in chemistry, the speed at which a chemical reaction proceeds. It is often expressed in terms of either the concentration (amount per unit volume)

Explanation:

8 0

3 years ago

Aspirin (C9H8O4) is an acid which can be titrated with a base to determine purity. If an aspirin tablet weighing 0.615 g is titr

Iteru [2.4K]

Answer:

67.4 % of C₉H₈O₄

Explanation:

To make titrations problems we know, that in the endpoint:

mmoles of acid = mmoles of base

mmoles = M . volume so:

mmoles of acid = 20.52 mL . 0.1121 M

mmoles of acid = mg of acid / PM (mg /mmoles)

Let's determine the PM of aspirin:

12.017 g/m . 9 + 1.00078 g/m . 8 + 15.9994 g/m . 4 = 180.1568 mg/mmol

mass (mg) = (20.52 mL . 0.1121 M) . 180.1568 mg/mmol

mass (mg) = 414.4 mg

We convert the mass to g → 414.4 mg . 1g / 1000mg = 0.4144 g

We determine the % → (0.4144 g / 0.615 g) . 100 = 67.4 %

6 0

3 years ago

Which flow diagram best explains the energy transformations that occur within an automobile running on diesel

anyanavicka [17]

In diesel engines, the chemical energy in the fuel is changed to heat energy, causing the pistons to expand via mechanical energy. The mechanical energy is finally converted to kinetic energy, which is observed as the movement of the vehicle.

5 0

3 years ago

Calculate the molecular mass or formula mass in any of CH4 NO2 SO3 C6H6 Nal

Zielflug [23.3K]

Answer:

Ch4 Is an ion so the molecule yes 5

Explanation:

Sry for bad Engish me polish

5 0

3 years ago