Silicon nitrate is made by combining Si and nitrogen gas at high temperature. How much Si is needed to react with an excess of nitrogen gas to prepare 125g of silicone nitrate if the percent yield of the reaction is 95%

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change

Consider this initial-rate data at a certain temperature for the reaction described by

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.