How many oxygen atoms are in 2.30 g of quartz?

You are a fireworks maker. For the safety of the workers producing the material you want to reduce the rate of reactions to prevent explosions. What can you do to reduce the reaction rate?

Give the symbol for an isotope having 8 protons and 10 neutrons.

Identify all the energy forms associated with the ball at these times: about to be dropped falling down hitting the floor moving back up

The most stable elements have an atomic number above 92. a. a high proton to neutron ratio. b. a high binding energy per nucleon. c. a low binding energy per nucleon

What does dinitogen mean in a name?

Why does conduction occur in solids and liquids easier compared to gases? Because the particles in gases are closer together and move slower Because the particles in gases are farther apart and move faster.

Write a balanced equation for the combustion of gaseous methane (CH4), a majority component of natural gas, in which it combines with gaseous oxygen to form gaseous carbon dioxide and gaseous water.

Pedro listed characteristics of two types of protists in a chart. Two Groups of Protists X Y Often multicellular Are usually autotrophic Include euglenoids Are heterotrophs Reproduce using spores Include different molds Which headings best complete

Which of the following is a characteristic of nonmetals? a. nonmetals are often shiny and hard. b. nonmetals are often malleable. c. Nonmetals do not conduct electricity. d. nonmetals are often ductile.

How does a change in temperature affect the kinetic energy of the particles in a reaction?