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First you need to determine how many centimeters are the sum of the adjacent sides. To do this, divide the specified perimeter into 2 parts. 60/2 = 30

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education

Magnesium combustion reaction: 2Mg + O2 = 2MgO. Magnesium burned 24 g: 24 g / mol = 1 mol. This requires oxygen: 1 mol * 1/2 * 22.4

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education

Phosphorus combustion reaction: 4P + 5O2 = 2P2O5. 124 g of phosphorus, this is the amount of 124 g: 31 g / mol = 4 mol. Oxygen for

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A circle is a set of points on a plane equidistant from a given point, which is the center of this circle. The area of a circle is

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The AOB angle is the center angle because its vertex is located at the center of the specified circle. The degree measure of the arc AB is equal

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education

African relief is divided into two parts: low in the north and west, high in the east and south. The relief is dominated by plateaus, plains with a

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education

Reaction equation: 2KOH + H2SO4 = K2SO4 + 2H2O According to the periodic table, we determine the molar mass of sulfuric acid M = 1 * 2 +

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Find the point of intersection of the parabola with the abscissa, for this we equate its equation to 0: x ^ 2 – 4 = 0; x ^

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education

From the condition we know that the angle at the base of an isosceles triangle is 45 °. In order to find the angle at the vertex, we

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education

The aquarium has a bottom area S = 32dm3 and height h = 60cm3. Determine the amount of water poured if the aquarium is half full. The aquarium

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