chemistry
Hydrochloric acid reacts with calcium to form hydrogen and calcium chloride. If 100 grams of hydrochloric acid reacts with 100 grams of calcium, what is the limiting reactant? 2HCl + Ca --> CaCl2 + H2
math
I don't get these problems at all and i have to turn 22 questions in on this tomorrow PLEASE HELP!!! 6x+2=x-1 and 2(x-1/2)=4(x+1/4)
Calculus
find the absolute extrema of f(x)=sin pi x on [-1,2] Not sure how to do this problem....
geometry
two sides of an equilateral trianlge measure (2y+3) units and (y^2-5) units. if the perimeter of the triangle is 33 units, what is the value of y?
geometry
two sides of an equilateral trianlge measure (2y+3) units and (y^2-5) units. if the perimeter of the triangle is 33 units, what is the value of y?
geometry
Two lines intersect to form two pairs of vertical angles.Angle 1 with measure (20x + 7) degrees and angle 3 with measure (5x + 7y + 49) degrees are vertical angles. Angle 2 with measure (3x - 2y + 30) degrees and angle 4 are vertical angles.Find the values x and y and the meas...
geometry
A rectaungular prism has a volume of 360 inches cubed. What base measurements could the prism have?
math
reduce 4/15 to lowest terms
grammar
i expect a friend to be both honest and a loyal person is this using correct parallel structure
math
The ratio of girls to boys in a science class is 5:6. Can there be 15 boys in the class? Explain why or why not.
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