What is the difference between strong and weak acids?
What will be an ideal response?
Acids give up hydrogen ions when they dissolve in water, so they lower the pH of fluids and make them acidic (below pH 7).
Strong acids ionize completely in water to give up all of their H+ ions while weak acids give up only some of them. The more H+ ions released by strong acids, the lower the pH becomes, making fluid even more acidic.
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X-ray data showed that the DNA helix undergoes one complete turn every
A) 2.0 angstroms. B) 3.4 angstroms. C) 20 angstroms. D) 34 angstroms.
Given that an individual is a compound heterozygote at the CFTR locus, the gene that causes cystic fibrosis, what can be inferred?
A) If the individual has children, all the children will have cystic fibrosis. B) At least one of the individual's parents had cystic fibrosis. C) The individual is a carrier for cystic fibrosis, but does not have the disease. D) A drug that effectively treats one allele may not treat the other.
A minimum of 100 years of isolation is required for two populations to accumulate enough differences to be considered different species
Indicate whether the statement is true or false
Lactated Ringer's is a(n) __________ solution because its solute concentration is equal to that of the inside of the cell.
A) colloid B) isotonic C) hypotonic D) crystalloid