Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
|
which of the following is a physical property of sugar?
|
it is a white crystalline solid.
|
|
|
when a burning splint "pops" in a test tube, which is present?
|
hydrogen
|
|
|
which of the following statements concerning a bonding model are correct?
|
1.metals react by loosing electrons
2.nonmetals(except noble) react by gaining electrons 3.noble gases are unreactive |
|
|
In a periodic table, elements with similar properties are grouped in
|
periods
|
|
|
Covalent (aka molecular) bodnd are due to
|
sharing of two eletrons by two atoms
|
|
|
an acid-base indicator is a substance that
|
turns different colours in acids and bases
|
|
|
Lithium and oxygen
|
|
|
|
ionic or molecular
a. K2O b. P2O2 c.Mg (OH) 2 d. NO2 |
ionic
molecular ionic molecular |
|
|
what is the pH of a solution with a hydrogen ion concentration of 1×10-2
|
ph -> 2
|
|
|
why does calcium hydroxide raise soil pH?
|
OH -> H+
|
