Which of the following statements about compounds is false?
a. compounds include two types: ionic and covalent.
b. the properties of compounds are different than the elements that make them up.
c. compounds are two or more types of atoms bonded together.
d. compounds can be separated by physical methods.?

If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?

Select the correct answer from each drop-down menu. describe what happens to a carbon-11 atom when it undergoes positron emission. the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions