In which pair of elements are the chemical properties of the elements most similar?

What is the velocity of a fish travels 18 meters in 3 seconds

How many grams of water (H2O) would you need to have the same number of molecules as 200 grams of ammonia (11.743 moles) ?

1 mole of carbon atoms is equal to ___ individual carbon atoms

Which of Rutherford's (gold foil experiment) claims DID NOT support a previous model? A The atom is a dense solid ball of matter B The electron is the largest subatomic particle. C The atom is made mostly of empty space D The nucleus has a neutron.

A compound known to contain only molybdenum (Mo) and oxygen (O) is found to be 67% molybdenum by mass What is the empirical formula of the compound?

Write the name of the following compound MgSO4 • H20

What volume (in mililiters) of oxygen gas is required to react with 4.03 g of my at stp

A 12.5-g marble display 5.0 mL of water. What is its density?

What is the purpose of a catalyst in the production of hydrogen?

What is the correct way to prepare a 1 molar solution of kno3?