Molecular formulas: You find that 7.36 g of a compound has decomposed to give 6.93 of oxygen. The rest of the compound is hydrogen. If the molar mass of the compound is 34.0, what is its molecular formula?

Explain the centrifuging

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One isotope of oxygen has 8 protons and 10 neutrons. Which is the correct reference for this isotope? A. oxygen-18 B. oxygen-2 C. oxygen-8 D. oxygen-10

Gasoline catches on fire is it flammability?

Why does an energy pyramid show a decrease of energy in every trophic level? A). Much of the energy from the organism consumed is lost as heat. B). The higher the trophic level, the less energy needed for survival. C).

Correctly identify the generic formula for a synthesis reaction. a. AB + A+B b. A+B → AB c. CxHx + O2 → CO2 + H2O d. AB + C + AC + B e. AB + CD → AD + CB

Zinc phosphide, Zn3P2, is often used as a rat poison. Phosphorus has 5 valence electrons. How many valence electrons does each zinc atom lose?

Nonrenewable resources are?

Watch the animation, then check off the samples that will conduct electricity. Check all that apply. View Available Hint (s) Check all that apply. NaCl solution Solid NaCl Solid sugar Sugar solution

Burning wood represents a chemical change. True or False?