How many protons and neutrons does a silicon si atom have and hwere are each of there subatomic particles located how many electrons does a silicon atom have?

What is the pressure exerted by 0.801 mol of co2 in a 13.0 l container at 298 k? Express your answer in atm.

Write the balanced chemical equations for the reactions with products when 1. A piece of zinc is placed in a solution of Copper (II) Sulphate. 2. A piece of Aluminium dipped in Calcium Carbonate.

For which solutes dissolved in a liquid is the overall enthalpy of solution exothermic? some gases and most solids some solids and most gases few solids and few gases most solids and most gases

Galvanized nails are iron nails that have been plated with zinc to prevent rusting. the relevant reaction is zn2 (aq 2e? zn (s for a large batch of nails, a manufacturer needs to plate a total zinc mass of 3.

What type of chemical reaction is NaHCO3=Na2CO3+H2O+CO2

How many moles of NO3 are there in 6.2g

Which compound will conduct electricity when it is dissolved in water? a. CH4 b. CuSO4 c. C6H6 d. C6H12O6

Peter is 5 ft, 11 inches tall. Paul is 176 cm tall. Who is taller?

Which is the MOST accurate description about how the different types of feedback mechanisms work

What was one of the main benefits to the use of the icebox for cooling food?