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
barxatty [35]
1 year ago
12

Classify each of the following as a homogeneous or heterogeneous substance.

Chemistry
1 answer:
Mnenie [13.5K]1 year ago
5 0

Answer:

a). iron ore - is a heterogeneous substance.

b). quartz - is a homogeneous substance.

c). granite - is a heterogeneous substance.

d). energy drink - is a heterogeneous substance.

e). oil-and-vinegar salad dressing - is a heterogeneous substance.

f). salt - is a homogeneous substance.

g). rainwater - is a heterogeneous substance.

h). nitrogen - is a homogeneous substance.

Explanation:

a). iron ore - is a heterogeneous substance as iron core contains iron and other impurities

b). quartz - is a homogeneous substance as it is only made up of carbon

c). granite - is a heterogeneous substance as it is made up of multiple minerals.

d). energy drink - is a heterogeneous substance as it contains various substances mixed in it

e). oil-and-vinegar salad dressing - is a heterogeneous substance as oil and vinegar itself are different compounds

f). salt - is a homogeneous substance as it only contains one type of molecule

g). rainwater - is a heterogeneous substance as it contains water and other minerals

h). nitrogen - is a homogeneous substance as it is only made of one type of molecule.

You might be interested in
Determine the percentage composition (by mass) of oxygen in NH4NO3.
Brrunno [24]

Answer:

60%

Explanation:

M(NH4NO3) = 2*14 +4*1 +3*16 = 80 g/mol

M(3O) = 3*16 = 48 g/mol

(48/80) *100 % =60% oxygen by mass.

6 0
3 years ago
A 5 grams sample of liquid water evaporates into gaseous water in a closed container, expanding in the process. What is the mass
padilas [110]

We have get the mass of gaseous water after evaporation in a closed container.

The mass of water vapor after evaporation is 5 grams.

In closed container, there is no exchange in mass from system to surrounding, only heat may exchange. The number of moles of water vapour remains unchanged as 5 gram water is heated in closed container.

Due to heating, liquid water gets evaporated and intermolecular distance between water molecules increases in gaseous state than liquid state and intermolecuar force of attraction decreases.

Randomness of  molecules increases in gaseous state than liquid state.  


5 0
3 years ago
The elements chlorine and iodine have similar chemical properties<br> because they
Anton [14]

Answer:

They are both halogens and have the same number of electrons on their outer shell.

Any element with 7 electrons in the outermost shell will have similar properties. Thus other elements in the same column of the periodic table as chlorine will have similar properties.

<u><em>If you liked my answer, please mark me brainliest!!!</em></u>

8 0
2 years ago
How many ounces of silver in a silver quarter?
liraira [26]
<span>Each silver quarter has .18 troy ounces of silver. So, my calcs say about 5 1/2 quarters to the troy ounce (silver).</span>
6 0
2 years ago
What happed on monday march 10 2010​
lara31 [8.8K]

Answer: Carlos Slim becomes the first Mexican and person from an emerging economy to top Forbes Richest Person list, with net worth of US$53.5 billion

7 0
3 years ago
Read 2 more answers
Other questions:
  • How much heat is required to change the temperature of a 15 g aluminum can with 100 g of water from 24.5°C to 55°C?
    6·1 answer
  • Of the following which is the most concentrated solution
    10·2 answers
  • what happens when a peppermint is put in these three things soda, vinegar, lemon juice, and milk plz help me i need this for my
    9·1 answer
  • What is the volume of water in 150ml of the 35% of sucrose with a specific gravity of 1.115?
    8·2 answers
  • Genetically determined characteristics
    10·1 answer
  • Which of these best describes heat transfer through conduction?
    11·2 answers
  • How many mL. of 0.200 M Pb(NOs)2 solution are needed to obtain 0.875 grams of Pb(NO:)2?
    11·1 answer
  • A 0.223 mole sample of gas is held at 33.0 C and 2.00 atm, What's the volume of the gas? R = 0.0821 L atm / mol K answer soon il
    10·1 answer
  • How much aluminum oxide are produced when 46.5g of Al react with 165.37g of MnO?
    11·1 answer
  • Anyone plz help?? T^T
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!