What causes effervescence?

Why does a maglev train float above the rails

As an experiment a science class puts vinegar and baking soda into a large bottle and then puts a cork in the bottle. The carbon dioxide from this mixture shoots the cork into the air.

Inner transition metals are composed of which of the following? noble gases halogens metals lanthanides and actinides

A substance can behave as an Arrhenius even if it does not contain an OH group? True or false

The symbol, Mg (s), shows magnesium in its standard state. True or False?

For the reaction 2Fe + 3Cl2 → 2FeCl3 which of the following options gives the correct reactant:reactant ratio? Fe:Cl2 = 1:1 Fe:Cl2 = 2:3 Fe:Cl2 = 3:2 Fe:FeCl3 = 1:1

A 2.575 g piece of gold (specific heat = 0.129 J/g°C) at a temperature of 75°C is placed into cold water at 10°C. If the gold loses 10.0 J of energy, what is its final temperature in the water? Enter your answer to the nearest whole number of °C.

The complete combustion of gaseous sucrose at a constant pressure absorbs 544 kj of heapt per mole of surcrose. write the balance thermochemical equation for the reaction

Find the acceleration if a car goes from 40 to 50 mph in 5 seconds

What is the percent by mass of nahco3 in a solution containing 10 g of nahco3 dissolved in 400 ml of h2o?