When two or more substances combine, but each keeps its own properties, the new combination is called a (an) A) Element B) Mixture C) Compound D) Homogeneous substance

What different jobs do the small and large intestines do

The si standard of mass is the 1 kilogram international prototype kilogram stored in a vault in the basement of the international bureau of weights and measures in sevres, france.

Menthol, which is present in mentholated cough drops, is an organic compound containing only C, H, and O. When a 0.2010-g sample is analyzed by combustion, 0.5658 g of CO2 and 0.2318 g of H2O are obtained. What is the empirical formula of menthol?

Which of the following is evidence of a physical change? haora

How many grams of calcium phosphate can be produced when 78.5 grams of calcium hydroxide reacts with excess phosphoric acid?

What kingdom is humans in!

Propane (C3H8) has a molar mass of 132 g/mole. You started out the day with a tank containing 9071 g of propane. At the end of the day, your tank contained 7532 g of propane gas. How many moles of gas did you use?

Why decomposition of ammonium nitrate is a redox reaction?

Two formulas for compounds containing hydrogen and oxygen are H2O and H2O2. Do these formulas represent the same compound? Explain.

My dog made become frightened and cover when he hears loud thunder this is an example of a reaction to What kind of stimuli A. chemicals B. light C. touch D. sound