Explain what happens to the atoms when a sodium atom reacts with a chlorine atom.
Sodium atom loses an electron and becomes a sodium ion with a positive charge, chlorine atom gains a electron and becomes a chloride ion with a negative charge
6 of 9
The equation for a reaction of lead nitrate is: pb(NO3) + 2KI--->2KNO + pbI. A) write a word equation for this reaction. B) give the name and number of each type of atom in the products.
a) lead nitrate + potassium iodide ---> potassium nitrate + lead iodide B) 2 potassium atoms/ions, 6 oxygen atoms, 1 lead atom/ion, 2 iodine atoms/iodide ions
7 of 9
Calcium carbonate decomposes when heated to produce calcium oxide and carbon dioxide. 20.0 g of calcium carbonate produced 11.2g of calcium oxide. what mass of carbon dioxide would be produced?
8.8g
8 of 9
balance these symbol equations out: A) Ca + O2--> CaO B) Na + H2O--> NaOH + H2 C) CH4 + O2--> CO2 + H2O
A) 2Ca + O2 ----> 2CaO B)2Na + 2H2O---> 2NaOH + H2 C) CH4 + 2O2----> 2H2O
9 of 9
Other cards in this set
Card 2
Front
What are the names and numbers if the particles in an atom of sodium (atomic number 11, mass number 23)?
Back
11 Protons, 11 Electrons.
Card 3
Front
What determines the order of the elements in the periodic table?
Back
Card 4
Front
Explain why boron and aluminium are both in the same group in the periodic table
Back
Card 5
Front
Name the type of bonds in each of these compounds: CaO, C2H6, H2O, O, KCI, LiCL, MgCI, NH3, Na2O, PCI3
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