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two identical charges each of 15g mass and negligible volume are both suspended from the same point by a non conduction weightless strings 1500mm in length. Find the magnitude of each charge is the angle between the strings is 5.
The answer to this question according to the back of the book is 0.11x10^-6C.
When copper metal reacts with concentrated nitric acid, SALT, WATER and GAS forms. What is the name of the gas?
For the chemical compound which is represented in vinegar together with water: What is the name and formula of this compound?
I want to prepare copper sulphate using sulfuric acid. I have a sample of copper metal and a sample of copper carbonate. If I'm to use one of the materials which should it be and why
I need additional help for my final year in A level in chemistry to reach my target grade. Can any one tutor Sundays ?
You are to write an argumentative essay on Which Element do you think is the best/most useful one on the periodic table? Your reasons and claims should be supported by evidence. You cannot make a claim/ reason/ statement without proper evidence to support it. You will pick an element and compare and contrast it to 3 other elements. You will have to do research on your elements and counter elements, do determine your points and counter points. You also need to think of the negatives/ cons to each reason/ statement .. meaning the other point of view. You need to address the counter points/ other points of view, with evidence, and then explain why your element is better one. It is critical that when your paper is read, your element is support beyond a shadow of a doubt.
You need to cast an alloy of titanium (Ti) containing 46 at.% aluminium (Al). Using the information from your periodic table, estimate how much Ti and Al you will need to put in the crucible in order to cast a 100 g ingot of this alloy. b) By mistake, you added to the crucible 32.4 g of Ti and 67.6 g of Al. Work out the composition of your ingot in at.%.
Assuming 65 % of a human body is water (H2O) and the rest is mostly carbon (C), estimate the number of atoms in a human body