Adding a catalyst decreases the rate of a reaction. If the rate increases, then either k increases or the order of the reaction changes. What experiments might you perform to discover which is occurring?

What type of rock forms as a result of cooling and crystallization?

Which medium allows sound to travel faster, air or water?

Which two tools are used to measure humidity? O A. psychrometers and barometers O B. hygrometers and psychrometers O C. hygrometers and barometers O D. anemometers and weather vanes

1 - what is 3-what is the 4-How many

Water and ammonium nitrate (nh4no3 react in an endothermic reaction in a beaker. what would you expect to observe during this reaction? the beaker will get colder. the reaction will give off light. the products will be gaseous.

What type of bond will be formed for atoms that have a + 1 or - 1 charge?

Why a neutron is important

A solution is made by mixing 48.0 ml of ethanol, c2h6o, and 52.0 ml of water. assuming ideal behavior, what is the vapor pressure of the solution at 20 °c?

The molar mass of CO2 is 44.01 g/mole. Choose which of the following correctly represents this relationship correctly as a conversion factor. 1 mol CO2 = 44.01 g CO2 44.01 mol CO2 = 1 g CO2 44.01 molecules CO2 = 1 g CO2 1 molecule CO2 = 44.01 g CO2

For which blocks of elements are outer electrons the same as valence electrons? For which are d electrons often included among valence electrons?