Nonpolar substances do not dissolve in polar solvents like water. If you are conducting an investigation to test the solubility of different substances, which of these substances do you expect to be insoluble in water?
(a) ammonia (NH3)
(b) hydrogen sulfide (H2S)
(c) hydrogen fluoride (HF)
(d) silane (SiH4)

Janel’s class studied properties of matter and how matter can change. janel decided she would do an experiment mixing baking soda and vinegar.question: describe the properties of baking soda and vinegar, and explain the changes that janel should see when she mixes the two types of matter. •first, identify the physical state of matter of baking soda. describe another property of baking soda. •next, identify the physical state of matter of vinegar. describe another property of vinegar. •then, explain what janel should see when she mixes the baking soda and vinegar. •describe the states of matter of the new materials that are formed. •explain how janel can be certain a change has occurred. me

For ai it's atomic number is 13 and it's mass number is 27 how many neutrons does it have

How does the viscosity of magma change as magma cools?