Author: Kayla Moorcroft
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How to name alkenes and write their formulas
Alkanes are organic compounds that come from crude oil. Learn how to name alkanes and write their molecular formulas, condensed l, and displayed formulas.
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How to name alkanes and write their formulas
Alkanes are organic compounds that come from crude oil. Learn how to name alkanes and write their molecular formulas, condensed formulas, and displayed formulas.
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Crude oil and fractional distillation
Crude oil is a mixture of different types of hydrocarbons, so we need a way to separate them. There are different stages of refining crude oil, fractional distillation is the first step. It depends on the boiling point of a substance.
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What is a homologous series?
A homologous series is like a family of compounds that share certain properties. For example, there are notes on my website for grade 10 about alkanes, alkenes and alcohols. These are all different homologous series. But what does it actually mean if compounds are part of the same homologous series in terms of their similarities…
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“Can you explain how to do a bond enthalpy question?”
In a bond enthalpy question, you need to calculate the enthalpy of the bonds broken minus the enthalpy of the bonds formed. But how do you know which bonds these are? Well, you’ll have to draw out the molecules. Here is a step by step explanation of how to draw molecules using the lewis dot…
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“How do you find the sum of the next ‘n’ terms in a sequence?”
Sometimes a sequences and series question in grade 11 math might ask you to “find the sum of the next 100 terms” or something similar. Basically, they’re asking you to find the sum, but exclude the first few terms. I’ll show you step by step how you would approach such a question.
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“How can I find the formula for a graph on excel?”
1. Select the data points, insert and scatter. (In order for this to work, it has to be a scatter graph ) 2. Click on the chart and navigate to the tab chart design. Click add chart element, trendline and select the type of graph you have. 3. Right click on the trendline and format…
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Perimeter of a shape
The perimeter of a shape is the distance around it. You can imagine that there is a fence built around the shape and you want to find out how long the fence should be. That is what the perimeter is! Once you know the formula for finding the perimeter of a shape, you can apply…
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How to solve quadratic inequalities
Inequalities use greater than or smaller than signs not an equals sign. How can we solve the equation to determine this range of values?
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Types of roots (the discriminant)
In quadratic equations, we commonly find the x-intercepts. These values tell us where the graph cuts the x-axis. It is possible to determine what roots the function will have without drawing a graph or solving the equation by using the discriminant.