Answer:
See explanation
Explanation:
A reaction in which heat and light are produced is a combustion reaction. Combustion is said to have occurred when a substance is burnt in oxygen.
The balanced equation of the reaction is;
4Li(s) + O2(g) ------->2Li2O(s)
This reaction is exothermic because heat was produced. The reaction has a low activation energy as the metal easily burst into flames in oxygen. A catalyst is not needed in this reaction because it has a low activation energy.
According to the law of conservation of mass. Atoms are neither created nor destroyed in a chemical reaction. What this means is that in a chemical reaction, the number of atoms of each element on the left hand side must be the same as the same as the number of atoms of the same element on the right hand side.
Answer: higher,because when salt is dissolved bonds form between the salt ions and the water molecules
The option that best describes the term phospholipid is option b that is "a nonpolar lipid molecule that is <span>that is made amphipathic by the addition of a phosphate".
Phospholipid is a type or class of a lipid that have phosphate group in its molecule and the structure of phospholipid</span><span> have two fatty acids, a phosphate group and a glycerol molecule.</span>
