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Question 1: Write balanced equation for:
(a) alpha decay of gold-173
(b) beta decay of iodine-138
(c) capture of an electron by cadmium-104
Question 2: Write the two balanced quations, one for the incomplete combustion of methane (to form carbon monoxide and water vapor), and another one for the complete combustion of methane (forming carbon dioxide and whater vapor). What are the conditions, at which do you think the incomplete combustion might take place instead of the complete combustion? What is the health risk associated with this process?
Now consider a sample that consists of four spheres, each with a different mass: blue mass is 4.00 g, red mass is 3.75 g, green mass is 3.00 g, and yellow mass is 1.25 g. Calculate the average mass of a sphere in this sample.
Explain the role of a spin vane or boiling stones that are added to a liquid that is to be heated or distilled
1. write down a set of quantum numbers for each 3d atomic orbitals.2. how many radial nodes does each of the following
Why could the percent composition of a nucleophilic substitution not be determined using a refractometer. by measuring the refractive index
Similarly, we are traveling through space because of the Earth's rotation (1000 mi/h at the equator, Confidence Exercise). We don't generally feel this motion either, but we do easily sense it otherwise. How?
Instead of using two 100ml portions of ether. a single extraction had been carried out using one 200 mL portion of ether. What weight of Z would be contained in the ether solution under these conditions
If 0.20mL of methyl benzoate and 0.45mL of concentrated (18M)sulfuric acid PLUS 0.15mL of concentrated (18M)sulfuric acid and 0.15mL concentrated (16M)nitric acid were added together and the end product was methyl-3-nitrobenzoate what is the theor..
Write a balanced net ionic equation and describe one of the ways for which Cd2+ will interfere with the determination of copper.
A piece of solid Ni metal is put into an aqueous solution of HNO3. Write the net ionic equation for any single-replacement redox reaction. Include states and charges
CH3CH2CH2CN can be synthesized by an SN2 reaction. Draw the structures of the alkyl chloride and nucleophile that will give this compound in highest yield.
a piece of metal with a mass of 148 g is placed in a 50 ml graduated cylinder. the water level rises from 20. ml to 35
Mothballs in a clothes closet gradually disappear over time. What happens to this material?
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