Genetic engingeering has already helped bya___ A.)Altering Pedigrees C.) Eliminating Infant Death
B.)Curing Down's Syndrome D.)Improve Tomatoes

Which step in naming unsaturated hydrocarbons is used for alkenes but not alkynes

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?