help me Classify the following substances as:

Pure Substance – P Solution – S Mechanical Mixture – MM
Suspension – SU Colloid - C

Substance

Apple Juice

2005 Penny

Propane

Chicken Noodle Soup

Milk

Salsa

14 Karat Gold Ring

Air

Pepsi (in a glass)

Chocolate Chip Cookie

True or false, the three major scales used to measure earthquakes are mercalli scale, richter scale and magnitude scale

1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false

Calculate: select the worksheet tab. this tab you calculate the analyte concentration.  fill in the first set of boxes ("moles h2so4" and "moles naoh") based on the coefficients in the balanced equation. (if there is no coefficient, the value is 1.)  record the appropriate volumes in the "ml naoh" and "ml h2so4" boxes.  record the concentration of the titrant in the m naoh box. click calculate. what is the concentration listed