An unknown substance turns blue litmus paper to red. which additional test could be used to confirm the substance’s identity?
it should turn phenolphthalein from colorless to pink because it is a base.
it should turn phenolphthalein from pink to colorless because it is a base.
it should turn methyl orange to orange because it is an acid.
it should turn methyl orange to red because it is an acid.

What problem would a person have if the nucleic acid in one of his or her cells were damaged?

Is heavenly controller dating someone?

Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?