Suppose 39 g of reactant A is mixed with 40 g of reactant B. After a chemical reaction takes place between A and B, which statement is correct?
a. The total mass of products plus any unreacted reactants will be 79 g.
b. The total mass of products plus any unreacted reactants will be less than 79 g.
c. The total mass of products plus any unreacted reactants will be more than 79 g.
d. The total mass of products will be 79 g.
[Ques. 2] Folded rock layers that resemble an arch are called ______________.
Fill in the blank(s) with correct word
[Ques. 3] Suppose 25 g of reactant A is mixed with 45 g of reactant B. After a chemical reaction takes place between A and B, which statement is correct?
a. The total mass of products plus any unreacted reactants will be 70 g.
b. The total mass of products plus any unreacted reactants will be less than 70 g.
c. The total mass of products plus any unreacted reactants will be more than 70 g.
d. The total mass of products will be 70 g.
[Ques. 4] The rock on the underside of an inclined fault plane is called the footwall, and the rock on the upper side is called the ______________.
Fill in the blank(s) with correct word
[Ques. 5] A compound consists of only magnesium, carbon, and oxygen. If the percentage by mass of Mg is 63.9 and that of C is 12.2, what is the percentage by mass of O?
a. 76.1
b. 23.9
c. 51.7
d. 70.9
e. None of the above
[Ques. 6] The rock on the upper side of an inclined fault plane is called the hanging wall, and the rock on the underside is called the ______________.
Fill in the blank(s) with correct word
[Ques. 7] A compound consists of only magnesium, carbon, and oxygen. If the percentage by mass of Mg is 28.8 and that of C is 14.2, what is the percentage by mass of O?
a. 16.0
b. 57.0
c. 43.0
d. 22.5
e. None of the above
[Ques. 8] The San Andreas fault lies on the boundary of the Pacific plate and the ______________ plate.
Fill in the blank(s) with correct word
[Ques. 9] Another name for solid carbon dioxide is
a. heavy water.
b. Epsom salt.
c. dry ice.
d. quicksilver.
[Ques. 10] Between the crust and the outer core lies the region called the ______________.
Fill in the blank(s) with correct word
Quick Reply
