Chemical Change
A change in the identity of the substance. The result has completely different properties.
What is a chemical change/reaction?
The term for the Horizontal Rows.
What are periods?
The most reactive metals. 1 Valence Electron.
What are the Alkali Metals.
The amount of the product if the reactant's mass is 725.8 g.
What is 725.8 g?
Does this equation conserve matter?
NH4NO3→N2O+2H2O
What is Yes.
A solid resulting from a chemical reaction between two liquids
What is a precipitate?
The term for the columns of the PTOE.
What is a family?
Largest Family, 1-2 valence electrons.
What are the transition metals?
In order to conserve mass in a chemical equation, this must be equal.
What is mass of the products and reactants?
Does this equation conserve matter?
Ca(NO3)2+2Na3PO4→Ca3(PO4)2+2NaNO3
What is no?
During a chemical change, this sign occurs when bubbles from.
What is gas formation?
This is a type of element that is a semiconductor.
What is a metalloid?
The family that has 4 valence electrons and shares electrons when they form bonds.
What is the carbon family?
John reacted 2 g of Hydrogen Gas and 4 g of Oxygen gas to make what mass of water?
what is 6 g?
Does this equation conserve matter?
2H3PO4+3Ca(OH)2→Ca3(PO4)2+6H2O
What is yes?
During a chemical change heat is absorbed by the reaction.
What is endothermic?
This (mostly) decreases as you move from left to right on a period in the PToE.
What is reactivity?
These are the inert, non-reactive gases and the end of every period.
What are the noble gases?
15 g of Sodium Chloride (NaCl) breaks down in a reaction into 7.5 g sodium and how much chlorine gas?
What is 7.5 g?
Does this equation conserve matter?
Mg(OH)2+2HCl→MgCl2+2H2O
What is no?
During a chemical change heat is given off.
What is exothermic?
What are the properties?
These have 5 valence electrons and can contain elemental poisons.
What are the Pnictogens?
A reaction finished with a mass of 12 g. What is the mass of the combined reactants?
What is 12 g?
Does this equation conserve matter?
Na2SO4+Ba(NO3)2→BaSO4+2NaNO3
What is yes?