Physical weathering can lead to the beginning of the erosion process.
physical weathering is a process of decay disintgration and decomposition brought about by environmental changes like running water moving ice wind etc
How do i describe how a constant volume calorimeter can be used to measure the heat transferred from a burning piece of coal to cool water.
Answers
calorimeter is a device used to measure the amount of heat involved in a chemical or physical process. For example, when an exothermic reaction occurs in solution in a calorimeter, the heat produced by the reaction is absorbed by the solution, which increases its temperature. When an endothermic reaction occurs, the heat required is absorbed from the thermal energy of the solution, which decreases its temperature ([link]). The temperature change, along with the specific heat and mass of the solution, can then be used to calculate the amount of heat involved in either case.
What is inetia and why is it importent
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it's momentum and it's important to understand bc it explains why things do not stop moving after the energy that is being used to make that movement has stopped
Isaac read 32% of oeople owned dogs what fraction of people owned dogs
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An easy way to do it is to convert the percentage to a decimal, in this case, .32
Then, multiply that by the amount of people.
An equation would be, Hope this helped :)
Multiply .32 by the number of people to receive your answer
The molecular formula of a compound used for bleaching hair is H2O2. calculate (a) mass of this compound that would contain 2.5 moles (b) no of moles of this compound that would exactly weight 30 get.
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The RFM (Relative Formula Mass) of the substance H2O2 is: H2 = 1 x 2 = 2 O2 = 16 x 2 = 32
32 + 2 = 34
USE THIS FORMULA:
*Mass = Moles x RFM*
Part A:
Mass = Moles x RFM = 2.5 x 34 = 85 g
(You can always rearrange this formula to suit the question)
Part B:
Moles = Mass/RFM = 30/34 =0.8823529........ (Need a calculator haha) =0.88 (Rounded up to 2 decimal places)
I hope I helped, ask if you have any questions.
Which statement is true for all minerals? A. They have a crystalline structure.
B. They contain useful metals.
C. They are made of silicon and oxygen.
D. They are too hard to be scratched with a nail.
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A. because atoms create crystal structures to form different kind of materials