A 5 grams sample of impure magnesium carbonate is reacted with an excess of hydrochloric acid:MgCO3(s)+2HCL(aq)-MgCl2(aq)+H2 O(l)+CO2(g). How many moles of CO2 are produced and what mass of pure magnesium carbonate would give this volume of carbon dioxide?​

What is the wavelength of a wave with a velocity of 50 m/s and a frequency of 5hz a 250 m b 0.1 m c 10m d 0.01 m

What is the most common form of matter in the universe

Ascientist conducted an experiment and discovered that certain plants grow faster when given a particular amount of fertilizer. anouther scientist conducted the same experiment and got similar results. which concept does this best illustrate? a) repetition b) replication c) precision d) validity