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
jeyben [28]
3 years ago
9

Which (3 of the 4) quantities must be conserved in all chemical reactions?

Chemistry
1 answer:
Helen [10]3 years ago
7 0

Mass, charge, and energy are conserved, no matter how much volume of
space they may be spread through either before or after the reaction.

Concerning density ...
Think about the fascinating classroom demonstration where the teacher
drops a tiny pellet of sodium into a glass of water.  The sodium gets very
excited, and it skates and skitters around on the surface of the water,
faster and faster, and eventually it explodes.  All the girls in the class
scream, while the guys are just sitting there and staring at the cloud
of steam that's rising from the glass of water.  The whole point here
is that the density of the steam is much different from the density of
either the water or the sodium that reacted to create it.  The density
is not conserved.


You might be interested in
Jessica has 12.7 moles of a compound for an experiment. How many particles of the compound does she have?
guajiro [1.7K]

Answer:

Number of moles is defined as the ratio of given mass in g to the molar mass.The mathematical expression is given as:

Number of moles  =Number of moles of compound  = 12.7 moles (given)As, 1 mole of any compound is equal to  particles.

where,    is Avogadro number. Formula for calculating particles is given by:

where, N =  number of particles, n = number of moles and  is Avogadro number.

Put the values,=  or  Hence, number of particles of the compound is equal to

Explanation:

8 0
3 years ago
Read 2 more answers
This is a picture of a large sheet of ice that moves very slowly across the land. This sheet of ice covers the land and is
Ilya [14]

Answer: I think A

Explanation:

3 0
2 years ago
Is it Nephrons or Kidney or Urine or Urethra
UkoKoshka [18]

Answer:

it's urine option ( C ) .

7 0
3 years ago
What is the Method for distillation?
a_sh-v [17]
Distillation is a process of separating the component substances from a liquid mixture by selective evaporation and condensation. 
4 0
3 years ago
Which element has the highest thermal conductivity
Vera_Pavlovna [14]

Answer:

Diamond.

Explanation:

Having thermal conductivity of more than 2,000 WMK

WMK = Watts per Meter per Kelvin

3 0
3 years ago
Other questions:
  • The major difference between a 1s orbital and a 2s orbital is that
    12·1 answer
  • Among the following, which element has the lowest ionization energy? Question 2 options: Cs Na Cl I
    13·2 answers
  • The law of universal gravitation was discovered by .
    9·2 answers
  • Convert 14 millimeters to it equivalent in meter
    15·1 answer
  • 1. In an equilibrium experiment, acetic acid (which is a weak acid) is mixed with sodium acetate (a soluble salt), with methyl o
    11·1 answer
  • Suppose that this individual now decides to give one-eight percent of a percent (0.125%) of her new net worth (8.12 * 10^10 to c
    13·2 answers
  • What energy transfer is occurring when you make a call on a phone?
    10·2 answers
  • If 2.112g of Fe2O3 reacts with 0.687g of Al, how much pure Fe will be produced?
    9·1 answer
  • A chemist adds 255.0mL of a 1.27M sodium carbonate Na2CO3 solution to a reaction flask. Calculate the mass in grams of sodium ca
    13·1 answer
  • How are people responsible for marine debris
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!