Search over 10,000 free study notes

1.      Check if the equation is balanced, luckily this one is! 2.      Check if any unit conversions are needed. All masses are in grams, so no problem there. 3.      Using (moles = mass ÷ Mr), calculate...

To tackle this question we start by thinking about how many brackets will we need to factorise this equation. As there are three parts to the equation it is most likely we are looking for two brackets. K...

Let us have an object that starts at an origin point O and ends at some finishing point F. Distance is the total length of the path taken by the object between O and F, this is also known from our everyda...

5x² + 2x + 1 = 0, x = -0.2 or -1

Blood vessels near the surface of the skin constrict to prevent heat loss to the environment and maintain blood flow around the central organs. This is called vasoconstriction. Also, skeletal muscles cont...