Show students two demonstrations and have them look for evidence that a gas is produced in the chemical reactions. Tell students that you will show them videos of two demonstrations where water vapor ...

Bubbles – Many chemical reactions you see in the science lab make a chemical which is a gas, so you see bubbles. A colour change – If the new chemicals are a different colour from the original ...

MAULDIN, S.C. (WSPA) – One person was taken to the hospital after a chemical reaction created a cloud of hazardous gas at a waste treatment plant in Mauldin. The Mauldin Fire Department ...

Today, a combination of chemical reactions and compressed gas canisters helps save lives. Airbags saved 50,457 lives in the US between 1987 and 2017, according to NHTSA. Bursting forth from ...