Given that sodium chloride is 39.0% sodium by mass, how many grams of sodium chloride are needed to have 950. mg of na present?

Which properties cause chemical reactions? A. chemical and physical properties B. physical properties C. chemical properties D. neither chemical nor physical properties

Potassium chloride will dissolve in water but not in oil. 1. true: because kcl is an ionic compound and water is nonpolar, whereas oil is polar. 2. true: because kcl is an ionic compound and water is polar; whereas oil is nonpolar. 3.

Which one is denser? question 2 options: the earth (a solid object) the sun, which is about 300,000 times more massive than the earth mars jupiter?

Yosef is playing with different kinds of rubber bands. Some are very narrow and some are quite wide. Yosef is curious about the rubber bands and develops the following scientific question: Does the width of a rubber band affect how easy it is to

The neurotransmitter glutamate opens channels that are permeable to sodium ions. what effect does glutamate produce on a postsynaptic neuron?

The periodic table includes all of the known elements in the world. how are elements arranged on the periodic table?

The pOH of a solution is 13.28. What is the [OH]

If you can choose any animal in the world to be, what animal would you choose. (I'd be a wolf or a dog, mostly a wolf)

Determine the molecular geometry about each interior nitrogen atom of n2h4.

When all of the bulbs in the parallel circuit were first lit, did they all illuminate equally?