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
kondaur [170]
3 years ago
14

Which image(s) would be considered pure substances? A) V B) I and II C) II and IV D) III and V

Chemistry
2 answers:
Nata [24]3 years ago
7 0

V is the answer for this question

Blizzard [7]3 years ago
6 0

The answer is V but i could be wrong

You might be interested in
What is wrong with this chemical<br> equation - N2 + O2 → 2N20,
LUCKY_DIMON [66]

Answer and Explanation:

I think the thing that is wrong with this chemical equation is that there is 0 by the 2 instead of the letter O.

Other than that, everything would be balanced.

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

5 0
3 years ago
Read 2 more answers
What physical property difference enabled you to Seperate salt from water?
elena55 [62]
<span>The two techniques for separating an insoluble solid from a liquid are filtration and centrifuging. Filtration relies on the fact that the solid particles are smaller than the filter paper pores which allow the tiny molecules of liquid to pass through. With solids which dissolve in a liquid solvent, evaporation is commonly used to recover the solid and distillation is used to recover the solvent.</span>
5 0
3 years ago
Read 2 more answers
Name the element which lies in group IA and 3rd period. What is the valency of it and why?​
Jlenok [28]

Answer:

Bro I got notification of this question but soory I don't know the answer Hope you understand me

4 0
3 years ago
Read 2 more answers
Which scenario represents an unbalanced force?
ladessa [460]

A . A person Jumping represents an unbalanced force.

<u>Explanation:</u>

If equal amount of force applied on any object from both the directions, then the object will not move and so the force is a balanced force.

If an unequal amount of force on an object from both sides then the object will move in the opposite direction of the maximum force applied, so it is called as an unbalanced force.

  • When the force is unbalanced then its velocity will change, so options C and D are omitted.
  • In Option B the vase is sitting on a table, just kept so there is no action of any unbalanced force.
  • But a person jumping represents an unbalanced force, since the person do not jump with constant velocity and it will vary.
7 0
4 years ago
Consider the balanced equation.
vaieri [72.5K]

The balanced chemical reaction is:

<span>N2 + 3H2 = 2NH3 </span>

 

We are given the amount of H2 being reacted. This will be our starting point.

26.3 g H2 (1 mol H2 / 2.02 g H2) 2 mol O2/3 mol H2) ( 17.04 g NH3 / 1mol NH3) = 147.90 g O2

 

Percent yield = actual yield / theoretical yield x 100

 

Percent yield = 79.0 g / 147.90 g x 100

Percent yield = 53.4%

8 0
3 years ago
Read 2 more answers
Other questions:
  • If helium effuses through a porous barrier in 1.34 min, how much time (in min) would it take the same amount of ammonia to effus
    6·1 answer
  • How many MOLES of boron tribromide are present in 3.20 grams of this compound ?
    11·1 answer
  • What characterizes a homogeneous mixture?
    11·1 answer
  • Which type of mutation involves adding dna bases?
    11·1 answer
  • 1 C8H10(l) +21/2O2(g) → 8CO2(g) + 5H2O(g), Hcomb= ? Hf for C8H10(l) = +49.0kJ/mol C8H10(l) Use the balanced combustion reaction
    12·1 answer
  • Which cell structure is found in animals, but not in plants?
    14·2 answers
  • Calculate the average atomic mass for element X
    8·1 answer
  • for a theoretical yield of 22 g and actual yield of 13 g, calculate the percent yield for a chemical reaction
    7·1 answer
  • How many moles of c3h6will be consumed when 4.11 mol of co2 are produced in the following equation 2c3h6 +9o2 - 6co2 + 6H2o
    10·1 answer
  • Solid iron combines with oxygen gas to form solid iron(III) oxide. Which of the following equations best describes this reaction
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!