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A sample of 2 g of nitrogen can be combined with 2.285714 g of oxygen to form nitric oxide gas (NO). What mass of oxygen would be required to convert the same sample of nitrogen to nitrogen dioxi
The area of a rectangle equals the length X width. The equation for the area of a rectangle with a length of 12 is A=12w . Write an ordered pair that is the solution to this equation. Show work. The
Its radius is multiplied by a factor of 4/5 (four over five). What is the new lateral surface area?
How to verify the amount of pure gold in an irregularly shaped object (e.g., a crown) by placing it in water. How much water should be displaced by a pure gold object having a mass of 1.59 kg?
Geometry An equilateral triangle is one in which all three sides are of equal length. If two vertices of an equilateral triangle are (0, 4) and (0, 0), find the third vertex. How many of these trian
Find the equation of a line that is perpendicular to -4x + 3y = 47 and contains the point (-5, -9). Please show all of your work and write your answer in slope-intercept form.
How many gallons of water will a rectangular tank hold if the base is a square that is 8 feet 10 inches on one side and the tank is 10 feet 3 inches high?
Ben Franklin dropped the oil on the surface of a lake and found that 2 mL of oil gave a circle of radius 30 m. Estimate the volumetric size of an oil molecule in angstroms, give one significant d
When trinitrotoluene( TNT,C7H5 (NO2)3) is detonated, large volumes of gases are released.if 100g of TNT were detonated, what would the mass of each product be?
What is the area of each triangle in a square pyramid if the length of each side of the square base is 6 cm and the total surface area is 132cm squared.
If 2.70 grams of aluminum and 4.05 grams of chlorine gas were mixed, what maximum mass of aluminum chloride could be produced?
Alex is building a ramp for a bike competition. He has two rectangular boards. One board is six meters and the other is five meters long. If the ramp has to form a right triangle, and the hypotenuse
Triangle ABC with three sides, AC = 13ft, CB=20ft, and AB = ?. The height of the triangle is drawn between vertex C and the side AB, and is perpendicular to side AB. The height is 12ft. Find the len
If 15 grams of sodium sulfate were mixed with 7.5 grams of carbon, what maximum mass of sodium sulfide could be produced?
If the total mass of CO2 produced is 34.8 grams, what was the approximate mass of the methane in the original mixture?
The perimeter of a rectangle is 150m. The length is 6 m morethan twice the width find the dimensions. What is the length? What is the Width?
Solid iron reacts with chlorine gas to produce iron(III) chloride. If 10.0 grams of iron reacts with excess chlorine gas and 18.5 grams of iron(III) chloride is produced, what is the percent yield
If the earth were scaled down to a 1m diameter globe, what would be the depth of the ocean (in mm)? How thick would the biosphere be (in mm)?
How many grams of CaCO3 are produced when you react 55.2 mL of 0.150 M Ca(NO3)2 with 0.655 grams of Na2Co3? How many grams of Na2CO3 remain unreacted? How many grams of Ca(NO3)2 remain unreacted?
Write an equation in slope-intercept form for the line that is perpendicular to the graph of 3x + 2y = 8 and passes through the y-intercept of that line.
AB is a fixed diameter of a circle and is 6 in. long. C is a variable point which moves on the circle. Describe completely the locus of the point of intersecting medians of triangle ABC as C moves a
When 1.150 grams of an unknown nonelectrolyte dissolves in 10.0 grams of water, the solution freezes at -2.16°C. What is the molecular weight of the unknown compound?
What type of triangles do you end up with on your trapezoid? Be as specific as possible and example : we know they are right triangles, go a little deeper. You can also cut up the trapezoid to how m
Calculate the de Broglie wavelength for each of the following. a) a proton with a velocity 95% of the speed of light. b) a 160 g ball with a velocity of 10. m/s.
Prove if triangle ABC and triangle DEF are two right triangles with right angles at the vertices C and F, respectively, AB is congruent to DE and BC is congruent to EF, then triangle ABC is congruen