How does waste filtered by kidneys leave the body? A) It leaves through breath as humans exhale. B) It leaves through the skin as sweat. C) It leaves through the urethra as urine. D) It leaves through the nose and mouth as excess mucus

17 Which substance can not be broken down by a chemical change? (1) ammonia (3) propanal (2) ethanol (4) zirconium

C2H2 + 2H2 → C2H6 How many moles of hydrogen are needed to produce 13.78 mol of ethane?

A cup holding 125.12g of water has an initial temperature of 26.8 degrees C. After a 35.08g piece of metal, at 99.5 degrees C, is transferred to the water, the temperature rises to 29.7 degrees C. What is the specific heat of the metal?

According to kinetic molecular theory, attractions between particles do not influence the properties of which of the following states of matter? Gases only Solids only Solids and liquids Liquids and gases

How many formula units are there in 5.9 mol of NaOH

How is matter conserved in a chemical reaction

Define Percent transmittance

Express (3 x 104) (4 x 1023) in scientific notation

The theoretical yield of aspirin in a reaction is 721 g. What is the percent yield if 461 g is produced?

Nonmetal oxides can react with water to form acids. For example, carbon dioxide reacts with water to form carbonic acid: CO2 H2O H2CO3. (1) Write an equation to show how diiodine pentaoxide reacts with water to form an acid. Do not include states.