chemistry people!! i need you?

Question

I need as many answers to the following as possible. Thanks!!!
-equation for volume
-SI unit for density
-equation of density
-characteristics of the bonds of the four types of matter
-how would you determine a wave's speed
-what are the two terms used for the columns in the periodic table? how many columns are there?
-What is the term for the rows? how many are there?
-period number of the actinides and lanthanides
-what is the charge of a molecular compound>
-what is magnesium's most common ion? how do you find that?
-what are the bond angles for these molecular shapes: trigonal bent and tetrahedral bent
-what determines whether a compound is polar or not?

Thank you sooo much!!

Answer 1

v=ml
d=g/cm^3
density = grams / volume
liqud= loose bonds , solids= strong bonds , gasses= weak bonds
Measure from one point on a wave to the next
(Group of elements)18 columns
(familes)7 or 9
actinides 89-103 lanthanides 57-71
positive
(do it yourself)
(do your self)
polar if both sides have same element

Answer 2

Yes, I could answer all of these for you, but I draw the line at doing all of your chemistry homework.

One thing for you to note: The characteristics of the bonds of the four types of matter is misleading. The type of matter could be solid, liquid, gas, and plasma. Solid, liquid and gas change phases due to energy differences and could have nothing to do with the bond types. Example - water can be a solid, liquid, or gas depending on the temperature and pressure, but it still contains only polar covalent bonds.

Answer 3

Please best answer me:

Volume of what? Each figure has its own formula

Density is mass/volume

The SI unit is kg/m^3 (kilograms per cubic meter)

Mg --- +2 since it is in the second column.

Answer 4

You should be able to find all of these and more in your chemistry textbook. You don't learn anything by allowing others to do your homework.

Answer 5

whoa....too many.....sorry.