Which of the following is the test for chlorine gas?

A. damp blue litmus is placed in the gas

B. a lit wooden splint is placed in the gas

C. a glowing wooden splint is placed in the gas

D. the gas is bubbled in limewater

Methane is also known as natural gas, and its combustion is a very common reaction: CH4 + 2 O2 → CO2 + 2 H2O. Remember that we can use stoichiometry if we know the correct coefficients.

Which of the following pairs of elements is most likely to form an ionic compound? nitrogen and sulfur sodium and aluminum magnesium and fluorine oxygen and chlorine

Which of the following describes a Brønsted-Lowry base? a hydrogen ion acceptor an electron pair donor an electron pair acceptor a hydrogen ion donor

Determine the number of atoms present in 2 moles of argon gas

What role does evidence play in repeating experiments?

What does ice cream melt on a hot day which type of thermal energy transfer does this melting represents

For which purpose do biochemists insert human genes into bacteria? to find a cure for the common cold to produce insulin for diabetics to kill resistant strains of bacteria to evolve certain species of bacteria

Cracks in rocks chemical or mechanical

A large boulder falls from an underwater ledge and crashes on the floor of the ocean. A pod of dolphins is 800 meters away. Determine how long it takes for the sound of the crash to reach the dolphins. A) 0.5 sec B) 0.3 sec C) 2.3 sec D) 1.9 sec

Given 4.80g of ammonium carbonate, find: Number of moles of the compound Number of moles of ammonium ions Number of moles of carbonate ions Number of moles of hydrogen atoms Number of hydrogen atoms