Answer:
A bohr developed a model of atom that predicts how it will behave.
Answer:
This is true because oxygen belongs to the non-metal part of the periodic table.
Answer:
As for what is written, I think that your wording is incomplete, since valine (abbreviated Val or V) is one of the twenty amino acids encoded by DNA on Earth, whose chemical formula is HO2CCH (NH2) CH (CH3) 2. In messenger RNA, it is encoded by GUA, GUG, GUU or GUC. Nutritionally, in humans, it is one of the essential amino acids.
Explanation:
Being an essential amino acid, it speaks of the fact that the organism does not synthesize it, therefore it must be ingested in the daily diet as well as in foods rich in proteins: red meat, chicken, fish, eggs, grains and nuts.
Explanation:
Scientists most especially chemists use the mole concepts through balanced chemical equations and molar masses to represent chemical reactions and account for the amount of substances.
The mole concept entails finding molar relationships between reactants and products in a chemical reaction. Mole connects difference chemical parameters and it is used in quantitative analysis of chemical reaction.
- First, we work from the known to the unknown.
- The known is the specie whose mass or number of moles is given.
Number of moles = 
- After obtaining the number of moles, then go ahead to compared using the balanced reaction with that of the unknown.
- Then from them find the mass of the unknown.