![bakerj4314](/avatars/39263.jpg)
bakerj4314
09.09.2019 •
Chemistry
The chemical equation given below represents the chemical reaction between lithium (li) and sulfur (s). in the equation, why is the number 2 present in front of lithium on the reactants side of the equation?
a. to show the number of lithium atoms involved in the reaction
b. to show the number of electrons gained by lithium in the reaction
c. to show the atomic number of lithium in the periodic table
d. to show the number of electrons lost by lithium in the reaction
Solved
Show answers
More tips
- C Computers and Internet Dropbox: What is it and How to Use it...
- H Health and Medicine How to Increase Hemoglobin in the Blood...
- A Animals and plants How to Store Carrots: Tips for Homeowners...
- L Legal consultation Juvenile Justice: Who Needs It?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
- T Travel and tourism Maldives Adventures: What is the Best Season to Visit the Luxurious Beaches?...
- H Health and Medicine Kinesiology: What is it and How Does it Work?...
Answers on questions: Chemistry
- C Chemistry Calculate the molarity of sodium ion in a solution made bymixing 3.58 ml of 0.288 m sodium chloride with 500 ml of 6.51 times1/1000 m sodium sulfate ( assume volumes...
- S Social Studies Will mouse stay in tree...
- P Physics A 62 kg student stands on a very light, rigid board that rests on a bathroom scale at each end, as shown in (Figure 1). What is the reading on the left scale? What is...
Ответ:
Option (A) is the correct answer.
Explanation:
The given chemical reaction equation is as follows.
As the number of atoms on both reactant and product side are the same. Hence, it is a balanced chemical reaction equation.
Here, number 2 before lithium atom represents that two atoms of lithium are taking part in the reaction. As there is no coefficient or number placed before the sulfur atom this means that only one atom of sulfur is reacting in the reaction.
Thus, we can conclude that the number 2 present in front of lithium on the reactants side of the equation shows the number of lithium atoms involved in the reaction.
Ответ:
Atomic mass is the sum of proton and neutrons
Atomic number is just number of protons
Isotopes of elements have same atomic number but different atomic mass due to difference in number of nuetrons