If you flip a penny, the chance of it turning up heads is
a.)predict the phenotypes of a monohybrid cross
b.)predict an unknown genotype of a purebred dominant plant
c.)cross-breed dominant and recessive plants
d.)give probabilities that a trait will appear

47

explanation:

ok

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds