Which is most likely to change with new discoveries and technologies?

Match the appropriate name for each chemical reaction description provided. A + B - - > AB ABC - - > AB + C XY + Z - - > Y + XZ CH4 + 2O2 - - > 2H2O + CO2 HNO3 (aq) + LiOH (aq) - - > H2O (l) + LiNO3 (aq) 2KI (aq) + Pb (NO3) 2 (aq) - - > 2KNO3 (aq) +

What element is used in making thermometers

Many electrophilic aromatic halogenations require the presence of aluminum trihalide (halide-chloride or bromide) as a catalyst.

Which type of star has the coolest surface temperatures? A. neutron B. red giant C. white dwarf D. main sequence

What is the mass number of an ion with 108 electrons, 159 neutrons, and a 1 charge?

A cylinder contains oxygen at a pressure of 10.0 atm and a temperature of 300.0 K. The volume of the cylinder is 10,000 mL. What is the mass of oxygen gas?

4 - explicar as mudanças de estados fisicos da materia 6 - definir e exemplificar: -Ligações iônicas ou eletrovalente -Ligações covalentes ou molecular 7-definir substancias puras e suas clasificações 8-definir e exemplificar misturas homogeneas e

What ion forms when an acid is dissolved in a solution?

Suppose you found a material in which 12.5% of the original radioactive atoms were present. if the half-life is 47 years, how old is the material?

How many neutrons does xenon have?