![eddrekas8564](/avatars/39747.jpg)
eddrekas8564
21.07.2019 •
Chemistry
Which quantity or quantities must always be the same on both sides of a chemical equation? (a) the number of atoms of each kind (b) the number of molecules of each kind (c) the number of moles of each kind of molecule (d) the sum of the masses of all substances involved?
Solved
Show answers
More tips
- S Style and Beauty Discover the Art of Nail Design: How Do You Paint Your Nails?...
- P Philosophy How to Develop Extrasensory Abilities?...
- O Other Everything You Need to Know About Kudyabliks...
- C Computers and Internet The Twitter Phenomenon: What it is and How to Use it...
- C Computers and Internet How to Choose a Laptop: Expert Guide and Tips...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
Answers on questions: Chemistry
- C Chemistry ANSWER ASAP GIVING BRAINLIEST AND STUFF! Please answer the following with 5 or more sentences: How do you find the average speed of an object? Explain...
- M Mathematics Solve equations with unknown variable .25x = 12...
- M Mathematics Help please .... i need to finish this assignment...
- S Social Studies English ships that landed in Jamestown in the 16 seven Susan constant of discovery...
- H History What happens if animals cannot get the food they need?...
- B Business The annual percentage rate on a credit card determines...
Ответ:
The quantities which must always be the same on both sides of a chemical equation is:
(a) the number of atoms of each kind.
(d) the sum of the masses of all substances involved.
A chemical reaction refers to a chemical process that involves the rearrangement or transformation of the ionic, atomic or molecular structure of a chemical element through the breakdown and formation of chemical bonds in order to produce a new compound.
A chemical equation is typically used to denote or represent a chemical reaction between two or more chemical elements.
A balanced chemical equation is one in which the number of atoms on the reactant (left) side is equal to the number of atoms on the product (right) side.
This ultimately implies that, both the charge on each atom and sum of the masses of the chemical substances in a chemical equation are properly balanced.
Additionally, all chemical equations must be in accordance with the Law of Conservation of Mass because mass can neither be created nor destroyed.
Read more: link
Ответ:
The circle is centered at (5, −7) and has a radius of 7.
Step-by-step explanation:
The standard form of the equation of a circle with center (a,b) and radius r is given as:
The given equation is
We rewrite to look like the stay form:
We now compare the two equations to get:
a=5, b=-7 and r=7.
Therefore the circle is centered at (5,-7) and has a radius of 7