Which Cannot be separated physically? What is a Pure Substance? It is something which cannot be divided into parts by physical means, as it’s all made up of the same thing. Pure substances are either elements or compounds. Elements can NOT be separated into other types of matter (physically or chemically). What are the examples […]
What is the relationship between half-life and decay constant?
What is the relationship between half-life and decay constant? This shows that the population decays exponentially at a rate that depends on the decay constant. The time required for half of the original population of radioactive atoms to decay is called the half-life. The relationship between the half-life, T1/2, and the decay constant is given […]
What happens to plate A as it collides with plate B?
What happens to plate A as it collides with plate B? Answer: The volcanic arc is formed to “plate A” as it collides with “plate B”. The collision of these two plates results in the oceanic current which is generated. The earthquake is produced because of the volcanic arc creation between the plate A and […]
What is an example of social construct?
What is an example of social construct? An example of a social construct is money or the concept of currency, as people in society have agreed to give it importance/value. Strong social constructs rely on the human perspective and knowledge that does not just exist, but is rather constructed by society. Is disability socially constructed? […]
Does oxygen follow octet rule?
Does oxygen follow octet rule? Octet rule: The concept that compounds containing carbon, nitrogen, oxygen, and fluorine are more stable if these atoms have eight valence electrons. When one of these atoms has less than eight valence electrons it has an open octet. Every carbon, nitrogen, oxygen, and fluorine atom in this molecule has a […]
Is renewable energy really better?
Is renewable energy really better? Renewables generate more energy than is used in their production, and produce fewer emissions than other power sources over their lifetime. While all sources of electricity result in some GHG emissions over their lifetime, renewable energy sources have substantially fewer emissions than fossil fuel-fired power plants. What are the benefits […]
What is the meaning of uncertainty in decision making?
What is the meaning of uncertainty in decision making? A decision under uncertainty is when there are many unknowns and no possibility of knowing what could occur in the future to alter the outcome of a decision. A situation of uncertainty arises when there can be more than one possible consequences of selecting any course […]
What is difference between peroxide and superoxide?
What is difference between peroxide and superoxide? The primary difference between a peroxide and a superoxide lies in the oxidation state of the oxygen atom. In a peroxide, the oxidation state of oxygen is known to be -1 whereas in a superoxide, the oxidation state of oxygen is known to be -1/2. What is phosphorus […]
What gases are released when wood burns?
What gases are released when wood burns? When wood is burned, the combustion reaction produces heat and emissions in the form of water, organic vapors, gases, and particulates. The emissions of most concern are carbon monoxide (CO), carbon dioxide (CO2), sulfur oxides (SOx), and nitrogen oxides (NOx). Does burning wood cause global warming? Scientists estimate […]
What scent do guys find most attractive?
What scent do guys find most attractive? Men are most attracted to floral scents while women find ‘woody’ aromas appealing – but you should avoid coconut if you’re trying to bag a date. Women looking for love should wear floral fragrances to attract a man, while preferring a ‘woody’ scent on potential lovers, according to […]