The protons and neutronsa. leave the nucleus often. b. never leave the nucleus. c. spend all their time outside the nucleus.

Imagine that you have produced several versions of lactase, each of which differs from normal lactase by a single amino acid. describe a test that could indirectly determine which of the versions significantly alters the three-dimensional shape of the lactase protein.

What is the mass of 0.46 mil of mgcl2

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