1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
andrezito [222]
3 years ago
10

Which statements are true of heterogeneous mixtures? 1) They settle out. 2) The proportions of solute to solvent may vary. 3) Th

e solute is evenly distributed throughout. 4) They are composed of two solvents and two solutes. 1 and 2 2 and 4 3 only 2 only
Chemistry
1 answer:
VARVARA [1.3K]3 years ago
3 0

Answer:

1 and 2

Explanation:

Heterogeneous mixtures are basically refers to any solution that is not uniform in composition. A typical example is a solution of water and sand.

1)

By nature, they settle out. The denser component of the solution falls down and the lighter component stays up.

2)

The proportions may vary as it is a mixture. There is no fixed ratio of solute t solvent.

3)

The solute is not evenly distributed and this is why it is referred to as a non uniform mixture.

4)

They do not necessarily contain teo solvent and two solutes.

The correct options are option 1 and option 2 only.

You might be interested in
How many bromine molecules are in 250 g of bromine? (R
Galina-37 [17]
Use the formula triangle for quantitive chemistry
5 0
3 years ago
At what temperature will 2.50 moles of ideal
Sever21 [200]

Answer: 1,218K

Explanation:

7 0
2 years ago
Ammonium phosphate is an important ingredient in many fertilizers. It can be made by reacting phosphoric acid with ammonia . Wha
Dmitry [639]

Answer:

7.5 g

Explanation:

There is some info missing. I think this is the original question.

<em>Ammonium phosphate ((NH₄)₃PO₄) is an important ingredient in many fertilizers. It can be made by reacting phosphoric acid (H₃PO₄) with ammonia (NH₃). What mass of ammonium phosphate is produced by the reaction of 4.9 g of phosphoric acid? Be sure your answer has the correct number of significant digits.</em>

<em />

Step 1: Write the balanced equation

H₃PO₄ + 3 NH₃ ⇒ (NH₄)₃PO₄

Step 2: Calculate the moles corresponding to 4.9 g of phosphoric acid

The molar mass of phosphoric acid is 98.00 g/mol.

4.9 g \times \frac{1mol}{98.00g} = 0.050mol

Step 3: Calculate the moles of ammonium phosphate produced from 0.050 moles of phosphoric acid

The molar ratio of H₃PO₄ to (NH₄)₃PO₄ is 1:1. The moles of (NH₄)₃PO₄ produced are 1/1 × 0.050 mol = 0.050 mol.

Step 4: Calculate the mass corresponding to 0.050 moles of ammonium phosphate

The molar mass of ammonium phosphate is 149.09 g/mol.

0.050mol \times \frac{149.09 g}{mol} = 7.5 g

6 0
3 years ago
2. How many grams of NaCl are required to prepare 0.40 L of a 0.75 M solution?
Yuri [45]

The mass of a NaCl solution that is required to prepare 0.40 L of a 0.75 M solution is 17.55g. Details about mass can be found below.

<h3>How to calculate mass?</h3>

The mass of a substance can be calculated by multiplying the number of moles by its molar mass.

However, the number of moles of a solution must be initially calculated by using the following formula:

molarity = no of moles ÷ volume

no of moles = 0.75 × 0.40

no of moles = 0.3 moles

mass of NaCl = 0.3 × 58.5 = 17.55g

Therefore, the mass of a NaCl solution that is required to prepare 0.40 L of a 0.75 M solution is 17.55g.

Learn more about mass at: brainly.com/question/19694949

#SPJ1

4 0
2 years ago
3. Gasoline, coal, batteries, and logs all have chemical energy. When they burn that chemical energy will be transformed into en
Arturiano [62]

Answer:

Thermal energy

Explanation:

When gasoline, coal, batteries and logs are all burn they transform chemical energy to thermal energy.

The chemical energy is the energy held between chemical chains and bonds within an atom.

  • When they combust, they release thermal energy
  • Chemical energy is a potential energy.
  • The thermal energy is a kinetic energy
  • It increase the average motion of the particles in the medium
  • The breaking bond when produces heat which is a form of thermal energy.
3 0
3 years ago
Other questions:
  • Reaction A has a high activation energy, whereas reacton B has a low activation energy. Which of the statements about reaction A
    12·1 answer
  • The density of a 15.00% by mass aqueous solution of acetic acid, CH3COOH, is 1.0187g/mL. What is (a) the molarity? (b) the molal
    15·1 answer
  • State changes are caused by a change in ____________________.
    9·2 answers
  • The main function of the circulatory system is to distribute ____ with ____ and ____ throughout the body.
    7·1 answer
  • According to the Kinetic Molecular Theory, the absolute temperature of a gas is directly related to average molecular kinetic
    8·2 answers
  • What happens when an atom has more electrons than can fit in one energy
    7·1 answer
  • Using the model for the formation of Scandium Fluoride (an ionic compound), write the chemical formula.
    10·1 answer
  • How many moles of Ca(NO3)2 are needed to make 1.50 L of a 6.00 molar solution?
    7·1 answer
  • Can someone help a dude out im stuck on this question
    10·1 answer
  • PLEASE ANSWER WILL MARK BRAINLIST
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!