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Periodic Table
Bonding
Water
Chemical Reactions
Miscellaneous
100
An element that shares properties of both a metal and nonmetal.
What is a metalloid?
100
This type of bond transfers electrons
What is an ionic bond?
100
Liquid water moves in this way.
What is in different speeds in different directions?
100
This type of reaction absorbs heat energy.
What is endothermic?
100
Th joining of a nucleus to form larger elements is _________.
What is fusion?
200
The most reactive nonmetal. The most reactive metal.
What is fluorine? What is francium?
200
In an ionic bond, the metal's electron is ______________.
What is transferred/lost?
200
This is the reason ice floats.
What is because it has air pockets?
200
Balance this equation: Ca + HF -> CaH + F2
What is 2Ca + 2HF -> 2CaH + F2
200
The chemical formula for 1) water and 2) carbon dioxide.
What is 1) H2O 2) CO2
300
The number of valence electrons for sulfur.
What is 6?
300
When Magnesium reacts with chlorine, it is this type of bond.
What is ionic?
300
Water dissolves many substances, it is known as the ___________ __________.
What is the universal solvent?
300
This will control a chemical reaction by speeding up the reaction and not becoming part of the products.
What is a catalyst?
300
The splitting of a nucleus is _________.
What is fission?
400
Chlorine's atomic mass is 35, and its atomic number is 17. Therefore, it has this many neutrons.
What is 18?
400
The type of bond that occurs between two nonmetals when electrons are shared.
What is covalent bond?
400
This end of a water molecule attracts to the sodium in salt, allowing salt to dissolve in water.
What is oxygen/negative?
400
This type of reaction releases heat energy.
What is exothermic.
400
A neutral particle made of two or more atoms joined by covalent bonds.
What is a molecule?
500
1) Name the most reactive group of metals. 2) Name the most reactive group of nonmetals.
1) What is alkali? 2) What is halogen?
500
Write the formula of the bond between sodium and sulfur. Include charges!
What is Nasubscript2charge+1Scharge-2
500
When ice freezes, it expands because ________________.
What is tiny air pockets form?
500
If the products of a reaction are 350 grams, then the mass of the reactants are ____________.
What is 350 grams?
500
The modern periodic table is organized this way.
What is by increasing atomic number?