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
cestrela7 [59]
4 years ago
9

Which equation shows a conservation of mass?

Chemistry
1 answer:
pychu [463]4 years ago
8 0
(4) PCl5--> PCl3+ Cl2 is the correct answer because we both have 1 P atom and 5 Cl atoms on both sides, and thus the masses of the elements don't change.
Hope this would help~
You might be interested in
5,500 cm scientific notation
Alex73 [517]

5,500 written as 5.5 x 103 in scientific notation. hope i helped

7 0
3 years ago
Read 2 more answers
E
Nana76 [90]
Hey :)

Air pollution

Hope this helps!

Good luck in your test :)
7 0
4 years ago
Read 2 more answers
If 9.2 g of calcium react completely with excess aluminum chloride how many grams of aluminum would be produced?
Gekata [30.6K]

Explanation:

3Ca(s) + 2AlCl3(aq) -> 3CaCl2(aq) + 2Al(s)

According to the question, Ca is the limiting reactant.

Therefore, we equate Ca to Aluminium which is the product whose mass we want to find

Molar mass of Ca- 40g/mol

". ". of Al- 27g/mol

3Ca --> 2Al

3×40 --> 2×27

9.2 --> x

x = 9.2×2×27= 496.8÷120=4.14

8 0
3 years ago
The atomic number of an atom is the number of ____ in that atom.
snow_tiger [21]

Answer:

Protons

Explanation:

Bromine has 35 protons and is number 35 for example

5 0
3 years ago
Buildings are more dense than the surrounding air. This means that they have more _____ per volume than the air and will stay on
Anit [1.1K]
The correct answer would be that they have more MASS per volume than air. 
7 0
3 years ago
Read 2 more answers
Other questions:
  • oc Inmaking and Stu Dent are working together in lab to make a buffer. Doc measures exactly 30.0 mL of 0.0635 M acetic acid solu
    12·1 answer
  • What were the success and failures that came to Boyle’s excitements?
    9·1 answer
  • What are the significant figures in 250?
    8·1 answer
  • 22.99 on the element sodium means the combined numbers of electrons and protons?
    14·2 answers
  • To which is the watt is equal?
    14·1 answer
  • Using the periodic table, choose the more reactive nonmetal.<br> Si or N
    11·2 answers
  • What accounts for the fact that liquid mercury forms into tight beads while ethyl alcohol do not?
    10·1 answer
  • A mass of 10 kg has a velocity of 123 m/s to the north. What is the momentum
    9·1 answer
  • A drought hits the habitat of a semi-aquatic bird population. All ponds dry up, and fish populations decline. There are two grou
    10·1 answer
  • What do the two arrows in the diagram most likely represent?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!