Answer:
idfk man but someone will HELP
Explanation:
<span>magnesium oxide is a compound that is composed of one atom of magnesium and two atoms of oxygen. The compound is a combination of Mg2+ ion and O2-. The ions translate into atoms which reflects on the subscripst of the elements already. magnesium oxide is a basic oxide with the pH level greater than 7.</span>
Actually, a methylene group is simply any compound which
contains a C=C double bond group and the rest are single bonded carbon groups. Some
example of the isomers of C6H12 which contains methylene group is:
1-hexene
2,3-dimethyl-2-butene
2,3-dimethyl-1-butene
2-methyl-2-pentene
trans-2-hexene
4-methyl-1-pentene
cis-2-hexene
trans-3-hexene
2-ethyl-1-butene
2-methyl-1-pentene
3,3-dimethyl-1-butene
4-methyl-cis-2-pentene
cis-3-methyl-2-pentene
trans-3-methyl-2-pentene
Answer:
Absolutely correct
Explanation:
Displacement is vector i.e. it deals with magnitude and direction WHILE Distance is scalar i.e. it only deals with magnitude
Anything which changes the composition of starting material is a chemical property or chemical change. For example: you bake cake or cook food the heat changes composition of these. So cooking is a chemical change.
But evaporation of water is a physical change because even after evaporating it is still water molecules not changed to something else.
Combustion of any substance is burning of any substance in air. Combustion is actually the burning of a substance with oxygen in air. So, when a substance undergoes combustion it changes in it’s composition.
COMBUSTION IS A CHEMICAL CHANGE
