According to the following chemical reaction
SiO2(s) + 3C(s) + 3 SIC(s) + 2C0(g)
if 3 mol of SiO2 are added to 4 mol of C
How many moles of excess reactant
remain?

Astudent made the lewis dot diagram of a compound shown. what is the error in the lewis dot diagram? a)an o atom should transfer all of its six electrons to mg because the formula is mgo b) both electrons of mg should be transferred to one o adam because the formula is mgo c) the electrons should be transferred from each o add him to capital mg because mg has fewer electrons d) the number of dots around mg should be four because it has to transfer two electrons to each o

Chromosome 17 is made of over million base pairs.

What is formed when amino acids form long chains or polymerize