What type of reaction happens when you add vinegar to baking soda.

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by

A20 liter cylinder of helium at a pressure of 150 atm and a temperature of 27°c is used to fill a balloon at 1.00 atm and 37°c. what is the volume of the balloon? a. 0.14 liters b. 3000 liters c. 2900 liters d. 2400 liters e. 3100 liters