2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4pt 5 pt 1pt Element, Compound Mixture Models & Formulas Bonding Periodic Table Equations
Two or more substances in the same place but not chemically combined are called this.
mixture 1 pt
The Earth’s atmosphere is composed of a bunch of different gasses and is an example of this.
mixture 2 pt
H 2 O is the formula for water and is an example of this.
compound 3 pt
Chemical formulas are used to represent this.
compound 4 pt
Pure substances are considered pure because they are made from only one type of …….
Particle (atom or molecule) 5 pt
The number of sulfur atoms in the formula H 2 SO 4.
1 1 pt
A molecule of silver bromate is composed of 3 oxygen atoms (O), 1 bromine atom (Br), and 1 silver atom (Ag). This is the chemical formula for silver bromate.
AgBrO 3 2 pt
Which model below shows a compound? A B C
A 3 pt
Why does model C below show an element? A B C
It’s made from only 1 type of atom. 4 pt
How many different molecules are present in A below? A B C
1 5 pt
Which of the following compounds is ionic? LiF or C 2 H 4
LiF 1 pt
This type of bond occurs when electrons are shared between atoms.
covalent 2 pt
When atoms gain or lose electrons and become charged particles, they are called this.
ion 3 pt
The joining of atoms to form new bonds is a result of this.
Chemical bonding 4 pt
When new substances form as a result of chemical bonding, most of their properties do this.
change 5 pt
Elements in the same group on the periodic table of elements have the same number of these.
Valence electrons 1 pt
Noble gasses don’t form bonds because of this.
They have full outer shells or 8 valence electrons and are stable. 2 pt
The number of valence electrons for an element can be found by using this on the periodic table of elements.
The group number. 3 pt
Why do elements in group 1 react so easily?
They only have 1 valence electron. 4 pt
Group 16 elements bond easily with this group.
Group 2 5 pt
Is the following equation balanced? SnO + 2 H 2 → Sn + 2 H 2 O
No 1 pt
What is/are the coefficient/s in the following equation. 2 C 4 H O 2 → 8 CO 2(g) + 10 H 2 O
2, 13, 8, 10 2 pt
What is/are the reactant/s in the following equation? NaCl + AgNO 3 → NaNO 3 + AgCl
NaCl + AgNO 3 3 pt
What is/are the product/s in the following equation? 2Mg + O 2 → 2MgO
2MgO 4 pt
The Law of Conservation of Matter is reflected in balanced equations as the law states this.
Matter cannot be created or destroyed. 5 pt