What is the reason why bubbling occurs when vinegar is mixed with baking soda? a) a precipitate b) a gas is produced c) a color change occurs

Esign techniques and materials that reduce the negative environmental impact of a structure are referred to as

An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line