What can make this balanced by adding coefficients

CH4+O2 H2O + CO2

If you wanted to change the polarity of hydrogen bromide (HBr) by substituting the bromine by a different atom. Which atom would increase the polarity of the molecule? A. chlorine (CI) B. iodine (1) C. sulfur (S) D. hydrogen (H)

How many atoms of Ca are present in 80.156 grams of Ca?

Which of the following correctly identifies the composition of an oxygen atom? A. 8 protons, 8 electrons, and 8 neutrons B. 6 protons, 6 electrons, and 8 neutrons C. 8 protons, 6 electrons, and 7 neutrons D. 6 protons, 6 electrons, and 12 neutrons

The atomic mass of an element whose atoms consist of eight protons, nine neutrons, and eight electrons is 8 16 17 25

Nitrogen (N) needs three more electrons to fill its outermost energy level. What is the number of electrons that Nitrogen (N) has in its outermost energy level before it forms a bond?

Identify the bonds between atoms of each pair of elements as nonpolar covalent, moderately polar covenant, very covalent or ionic. H and Br, CL and F, K and CL, Li and O, C and O, Br and Br

The combining of atoms is known as nuclear fusion. true false

Write the appropriate formula Zinc sulfite

A (n) is a chemical substance used to treat, prevent, or diagnose a disease or alter one or more functions of the body.

If I use the dropped to add 10 mL of drink mix to 50 mL of water, what is the percent by volume of the drink mix in the solution?