Words:
1. electrons
2.metals
3. period
4. compound
5. solution
6. protons
7. group
8. metalloids
Answers:
1.F
2.C
3.A
4.E
5.B
6.H
7. G
8.D
Answer:
a 1) XZ2
2) YZ
3) X2
b 1) Ionic bond
2) Ionic bond
3) covalent bond
c) ionic compounds has high melting and boiling point
ionic compounds can conduct electicity in aqueous form
covalent compounds have electrons shared between the atoms
covalent compounds have lower melting point compared to ionic compound
Answer:
Explanation:
The properties of covalent bonds are:
1. Low boiling points and melting points.
2. Various colors.
3. Poor conductors of heat and electricity.
4. Brittle solids.
Note that all of the compounds in the chemical reaction are gases. Through avogadro's law, we know that each of these gases take up a proportional amount of space. Therefore, since the molar ratio of ethene and oxygen is 1:3, than 810 Liters of Oxygen gas must react with 270 liters of C2H4(ethene).