What coefficients are necessary to balance the equation?

___C3H8 + __O2 ® __ CO2 + H2O

Which of the following sample will have the greatest average speed at 355 K?. A. CH4. B. Ne. C. C2H4. D. Cl2

Which one is not a property of a mineral a.) hardness b.) streak c.) cleavage d.) shape

Magnesium (mg) forms an oxide with one magnesium atom and one oxygen atom as its formula. which element below is likely to form an oxide with a similar 1:1 formula? silicon, si sodium, na aluminum, al calcium, ca

How much argon do you breathe in each breath?

If you have any two elements, how do you tell which one conducts heat and electricity better? A. The one closest to the bottom left corner of the table is a better conductor. B.

How many grams of NaOH are needed to make 500 mL of a 2.5 M NaOH solution

During its life cycle, an amphibian lives both on land and in water.

An atom that contains 22 protons, 23 neutrons, and 22 electrons would have a mass of approximately

Compared with a ph of 7, a solution of ph 5 has what times/fraction of the hydrogen concentration?

Write a formulae equation to represent the combustion of carbon to form carbon dioxide and the thermal decomposition of magnesium carbonate