Select the correct answer. Which scientist first proposed physical laws to mathematically describe the effect of forces on the motions of bodies? A. Galileo Galilei B. Isaac Newton C. Albert Einstein D. Benjamin Franklin

The molar mass of carbon dioxide (CO2) is 44.01 g/mol. The molar mass of water (H2O) is 18.01 g/mol. A reaction uses 528 g of CO2. How many moles of water are used in this reaction? 12.0 72.0 216 528

How many phosphate bonds are responsible for the high energy content of ATP? A) one B) two C) three D) four

Flames are the heat and light energy that is release when the chemical bonds in a substance are broken. What provides the chemical potential energy in a candle? A. spark B. heat C. wax D. water

An example of an atom that has no charge is one that has A. 1 proton, 2 electrons, and 3 neutrons. B. 3 protons, 1 electron, and 3 neutrons. C. 2 protons, 2 electrons, and 1 neutron. D. 3 protons, 2 electrons, and 1 neutron.

What percentage of the atoms in a sample of plutonium-238 will remain radioactive after 263.1 years

Which process is a physical change? A. iron rusting B. milk turning to curd C. water boiling D. paper burning E. hard water staining pipes

1. How much calcium oxide would be made by the thermal decomposition of 25 grams of calcium carbonate? CaCO3 - > CaO + CO2 2. How much oxygen gas can be produced through the decomposition of potassium chlorate (KClO3) if 194.

Ethanol contains the elements carbon, hydrogen, and oxygen. When ethanol burns, it chemically reacts with oxygen gas. C2H6O + O2 ethanol oxygen gas What elements will be present in the substances that are created when ethanol burns? A.

What are the errors in the table

What makes gas turn into a liquid?