Question 1 Electromagnetic radiation behaves both as particles (called photons) and as waves. Wavelength () and frequency () are related according to the equation where is the speed of light (). The energy ( in joules) contained in one quantum of electromagnetic radiation is described by the equation where is Planck's constant (). Note that frequency has units of inverse seconds (), which are more commonly expressed as hertz (). Part A A microwave oven operates at 2.40 . What is the wavelength of the radiation produced by this appliance? Express the wavelength numerically in nanometers. = | | | SubmitHintsMy AnswersGive UpReview Part Completed Part B Two of the types of infrared light, IR-B and IR-A, are both …show more content…
% abundance^293 NV, % abundance^295Nv = Part B If the mass of is 293.25 and that of is 295.25 , what is the atomic weight of ? Express your answer using five significant figures. AW of NV = Question 7 Write balanced chemical equations to correspond to each of the following descriptions. Part A When sulfur trioxide gas reacts with water, a solution of sulfuric acid forms. Express your answer as a balanced chemical equation. Identify all of the phases in your answer. | SubmitMy AnswersGive Up Part B Boron sulfide, , reacts violently with water to form dissolved boric acid, , and hydrogen sulfide gas. Express your answer as a balanced chemical equation. Identify all of the phases in your answer. | SubmitMy AnswersGive Up Part C Phosphine, , combusts in oxygen gas to form water vapor and solid tetraphosphorus decaoxide. Express your answer as a balanced chemical equation. Identify all of the phases in your answer. | SubmitMy AnswersGive Up Part D When solid mercury (II) nitrate is heated, it decomposes to form solid mercury (II) oxide, gaseous nitrogen dioxide, and oxygen. Express your answer as a balanced chemical equation. Identify all of the phases in your answer. | SubmitMy AnswersGive Up Part E Copper metal reacts with hot concentrated sulfuric acid solution to form aqueous copper (II) sulfate, sulfur dioxide gas, and water. Express your answer as a balanced chemical equation. Identify all
KIO3 + 6 HCl + 6 Na2S2O3 → 3 Na2S4O6 + KI +3 H2o + 6 NaCl
2. Summarize the following description of a chemical reaction in the form of a balanced chemical equation?
The solution of the formed ash and the water is basic, which was shown using the pH paper where its color became blue. A chemical change occurred. It is described using the following chemical reaction:
12. Write the balanced chemical reaction of the product of the reaction described above (problem 11) with NaOH. Is the product of this reaction soluble in aqueous solution?
Introduction – A double replacement reaction is a chemical reaction between two compounds where the positive ion of one compound is exchanged with the positive ion of another compound. If you have the reactants of two reaction solution that you can determine the products. All you need to do is pair the positive parts of the compounds with the other compounds negative part. Once you find the products you can determine their phase of matter by using Table H. You can also use Table F to determine the solubility guidelines for aqueous solutions. If the product falls under soluble or exceptions to insoluble it is in the aqueous stare. If the product falls under
again I am going to assume this is soluble since I have not done it yet RC42 17 0 LC33 21 4 SC13 17 4Total 83 54 8
List the equation in word and chemical form for each of the following processes: (6 points)
11. Write the balanced chemical reaction of zinc with HCl (same as problem 5). Is the product of
Write a balanced chemical equation for each reaction #1-8. Classify each reaction using the information provided in the
c. All the formulas of the oxides formed by the alkaline earth metals and lead
It is insoluble in water, and usually is found in the form of a salt like substance.
1. Write out a balanced equation for the reaction you investigated in Part II, including phase symbols.
divide moles by 2 and get 1 mol C, 2 mol H, 1 mol O
4g of Na CO x 1 mol of Na CO 4g of CaCl x 1mol of CaCl