You see an ice cube in a glass of water. The ice cube is in the ______ phase
What is solid?
100
If electrons between two atoms are transferred from one element to the other, the bonding is considered
What is ionic bonding?
100
In the reaction A + B --> C, the product is
What is C?
100
If the compound contains carbon and hydrogen, or carbon and oxygen bonds, it is considered
What is organic (or organic compound)?
100
What are the three most common (and important) elements for life?
What is carbon, hydrogen and oxygen? (or CHO)
200
If you see water in a pot turning into steam, the water went from the ____________ phase to the ____________ phase.
What is from liquid to gas phase?
200
DAILY DOUBLE!!!~ If electrons between two atoms are shared the bonding is considered
What is covalent bonding?
200
CH4 + O2 --> CO2 + H2O
In the reaction above, the reactants are
What are CH4 and O2?
200
In the reaction,
HCl + NaOH --> H2O + NaCl
we see the same number of hydrogen atoms on both sides. This is possible because of the law of
What is law of conservation of matter?
200
Consider the elements carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorous, the most common elements found in living organisms.
Which is the most common organic element on earth?
What is oxygen?
300
Molecules are moving around frequently in one container.
In another container, molecules are vibrating rapidly in place.
These two statements describe the ________ and _________ phases, respectively.
What is gas and solid phase?
300
Typically speaking, ______________ and ________________ elements form ionic compounds.
What are metals and nonmetals?
300
DAILY DOUBLE!!!~
2H2O2 --> 2H2O + O2
In the reaction above, determine the number of hydrogen and oxygen atoms present in the reaction (either left or right side)
What are 4 hydrogen atoms and 4 oxygen atoms?
300
DAILY DOUBLE!!!~ An enzyme that increased the reaction rate by lowering the activation energy is called
What is a catalyst?
300
From the following compounds: CH4, NH3, C6H12O6, and BaBr2, which is most likely not found in living things?
What is BaBr2?
400
DAILY DOUBLE!!!~
Correctly connect the solid, liquid and gas phase, to phases of life that people go through.
What is solid to child, liquid to teen, and gas to adulthood?
400
Determine which of the following compounds are considered covalent.
CH4, NaCl, H2SO4, BaBr2, CuSO4, H2O, AlCl3
What are CH4, H2SO4, and H2O?
400
2HCl + Ca(OH)2 --> H2O + CaCl2
To balance this reaction, what coefficient should be in front of H2O?
What is 2?
400
When you have a substance that cannot be broken down into simpler substances, you have an ___________.
An _______ describes the protons, neutrons, and electrons.
What is element and atom?
400
Of the following items: water, gasoline, salt, and metal wire, which is most likely to have carbon?
What is gasoline?
500
Identify the names of the phases from the following examples:
1) solid to gas phase
2) liquid to solid phase
3) liquid to gas phase
What is sublimation, freezing, vaporization (evaporation)?
500
DAILY DOUBLE!!!~ H2CO3 is a covalent molecule. How many valence electrons are being shared between all Carbon and Oxygen bonds?
What are eight electrons?
500
Of the following factors mentioned, the following ones increase the rate (or speed) of a reaction
1) surface area
2) concentration
3) temperature
4) catalyst
5) inhibitor
What are surface area, concentration, temperature and catalyst?
500
1) Elements/compounds on the left side of the reaction are called
2) Elements/compounds on the right side of the reaction are called
3) The arrow sign in between the element/compounds on the left and right side of the reaction are called
What are reactants, products, and yield sign?
500
DAILY DOUBLE!!!~ From the list given, provide three examples of inorganic molecules.
carbohydrates, lipids, gasoline, salt, fat, pants, water, sriracha sauce, sugar, C2H6, HCN, H2CO3, AlCl3?