What kind of change (physical or Chemical) occurs when a compound is separated into its individual elements?

Use a periodic table to answer this question. how many grams of co2 are in 2.1 mol of the compound?

17. Which of the following is NOT an empirical formula? * a. Sb2S3 b. C2H3O c. BeSO4 d. C2H6 18. Which of the following is NOT true comparing empirical and molecular formulas? * a.

Which of the following chemical equations is NOT correctly balanced? N2 + H2 - - > 2 NH3 HCl + NaHCO3 - - > CO2 + H2O + NaCl C2H5OH + 3O2 - - > 2CO2 + 3H2O 4NH3 + 5O2 - - > 4NO + 6H2O

Why can some metals be extracted from compounds by heating with carbon and why can some not

Determine the number of atoms and the mass of zirconium, silicon and oxygen found in 0.3384 Mol of zircon ZrSiO4, a semiprecious Stone.

Which is a cause of desertification? A. farming B. creating reservoirs C. overgrazing D. driving motor vehicles

What happens when the threat of exposure to dirty air is reduced in a community? There is enough oxygen available for people's lungs to function normally The amount of indoor air pollutants released during a fossil fuel burn decreases There is a

Is chicken noodle soup an element, a compound, a homogeneous mixture, or a heterogeneous mixture?

How is the amount of sunlight affect the makeup of an ecosystem

How many moles are in 65 g of carbon dioxide (CO2) ?