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
strojnjashka [21]
2 years ago
10

What is the mass in g of 7.009 x 10^21 molecules of Pl3?

Chemistry
1 answer:
ycow [4]2 years ago
4 0
I have completed the problem

You might be interested in
A<br> In 25 words or fewer, what is the scientific question for the boiling<br> water experiment?
maxonik [38]

Answer: Does adding salt to water make the water boil faster that if salt is not added?

5 0
2 years ago
Which chemical equation best represents the Law of Conservation of
astra-53 [7]

2H₂ + O₂ ⇒ 2H₂O

<h3>Further explanation</h3>

Conservation of mass states that

<em>In a closed system, the masses before and after the reaction are the same</em>

So it can be concluded

  • mass of the reactants = mass of the products
  • mass cannot be created or destroyed
  • The number of atoms involved in a reaction remains the same⇒ number of moles also the same
  • chemical equation in balanced form

So let's see which of the several options , which one has the same number of atoms on both sides of the equation

2H₂ + O₂ ⇒ 2H₂O

H ⇒ left 4, right 4

O ⇒ left 2, right 2

so the equation is in balance and represents the Law of Conservation of

Mass

6 0
3 years ago
A garbage collector collects food wrappers and aluminum cans from a park. What type of waste is the garbage collector collecting
Nat2105 [25]
Your answer to this question would be B. packaging waste.

hope this helps!
3 0
3 years ago
Read 2 more answers
Can someone explain me why the molar mass become 90.12 g/mol and when I calculated it's 90 g/mol?​
e-lub [12.9K]

Answer:

It could be because of rounding error somewhere in your calculations. Another thing to note is 90 +/- 4 g/mol.

Your calculations don't have to be spot on.

8 0
3 years ago
what is the concentration in ppm of a solution which is prepared by dissolving in 15mg of nacl in 200ml water
bezimeni [28]

Answer:

Explanation:

In weight/volume (w/v) terms,

   1 ppm = 1g m-3 = 1 mg L-1 = 1 μg mL-1

200 mL = 0.2 L

15 / 0.2 mg L-1 =75 ppm

6 0
3 years ago
Other questions:
  • How to tell which chair conformation is more stable?
    15·1 answer
  • The elements in group 5 of the periodic table all have
    15·1 answer
  • Which is an element?
    10·2 answers
  • What is cationic and anionic polymers?
    13·1 answer
  • Given the information that nitrogen atoms are larger than hydrogen atoms,which of the models best represent ammonia?(NH3)
    10·1 answer
  • A piston system absorbs 50.5 J of energy in the form of heat from the surroundings. The piston is working against a pressure of
    11·1 answer
  • PLEASE HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
    11·2 answers
  • Fill in the blank to complete the statement
    7·1 answer
  • Pls help me with these questions
    12·2 answers
  • Can someone please help. I have no idea how to do this
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!