If you forget to dry off a bread knife and when you washed it and reddish brown spots appeared on it would that be physical or chemical change

IF an Axonal Membrane transiently becomes very permeable to Na + ions then the membrane potential of the cell wall will approach:a. (+) 132 mVb. (+) 50 mVc. (-) 60 mVd. (+) 70 mVe. (-) 94 mV

What molality of pentane is obtained by dissolving 15 g pentane, c5h12, in 245.0 g hexane, c6h14?

What kind of molecule is table sugar? a. Monosaccharide c. Trisaccharide b. Disaccharide d. Octosaccharide

What system includes the living components of earth

Drum X is 12 full of oil and Drum Y, which has twice the capacity of Drum X, is 23 full of oil. If all of the oil in Drum X is poured into Drum Y, then Drum Y will be filled to what fraction of its capacity?

How do I convert 4,500mm to a m

A substance that permits the flow of electrons is a (n a. conductor b. insulator

The volume, in liters, of 538 g of CO2

9.86 x 10²⁸ O-atoms require what volume (L) N₂O₂ at STP?

What is a group of elements that form salts called