Complete and balance the equation: Al + HCl ____________________
Fill in the blank(s) with correct word
[Ques. 2] To cause an object to move in a circle, a ______________ force is necessary.
a. balanced
b. functional
c. centripetal
d. centrifugal
[Ques. 3] Complete and balance the equation: Mg + HC2H3O2 _____________________
Fill in the blank(s) with correct word
[Ques. 4] The acceleration of an object acted on by a net force perpendicular to the direction of the object's original motion
a. causes a change in direction.
b. is described by Newton's laws.
c. causes a change in velocity.
d. all of these
[Ques. 5] Complete and balance the following equations:
a. HNO3 + Ba(OH)2 ____________________.
b. H3PO4 + CaCO3 _____________________.
[Ques. 6] The variables m1 and m2 that appear in the equation F = Gm1m2/r2 are
a. the straight-line distance between the centers of each object.
b. the rate at which each object is moving.
c. the mass of each object.
d. the diameter of each object.
[Ques. 7] Complete and balance the equation: Ba(NO3)2(aq) + K2CO3(aq) ______________________
Fill in the blank(s) with correct word
[Ques. 8] The variable r that appears in the equation F = Gm1m2/r2 is
a. the straight-line distance between the centers of the two masses.
b. the rate at which both objects are moving.
c. the radius of the first mass.
d. the radius of the second mass.
[Ques. 9] Write the balanced chemical equation for the complete combustion of pentane, C5H12.
[Ques. 10] The constant G that appears in the equation F = Gm1m2/r2 is
a. smaller on the Moon than on Earth.
b. the force of gravity.
c. equal to 9.8 m/s2.
d. the acceleration due to gravity.
e. equal to 6.67 10-11 Nm2/kg2.
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