With easy 8th grade math!
which of the following is an example of observational scientific investigation?

a)mixing two reactants together in a small beaker.

b)drying solid produced by placing it in an oven.

c)placing test tubes in an ice bath for 15 minutes.

d)noting the color of a solution when heated.

What is the empirical formula of vanadium 1 oxide given that 20.38 grams of vandium combines with oxygen to form 23.58 grams of the oxide

Is powdered sports drink ionic or covalent ? 10pts !

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided