Diethyl ether C4H10O has a heat of fusion of 7 27 kJ mol How

15 Consider the reaction 10 pts MnO 4HCI MnCl Cl 2H 0 When 74 8 g of MnO reacts with excess HCI 28 05 g of water was actually produced Calculate the percent yield for this reaction MnO2 74 89 86 92 gimd H O 28 059 0 861 E R m n mm m 3 4 36 5 glme 124 1 18 015 gind 0 861 4 3 4 mol of Hel 1 56 L R Percentyrld actual 10010 Theortical yield

alyze the word pro0 5 00 grams of solid citric acid is dissolved in 500 00 ml of water to make aqueous citric acid options options 500 00 ml of water 5 00 grams of solid citric acid Question 19 aqueous citric acid options 500 00 ml of water Salt water Table salt NaCl Question 18 A chemical reaction can be reversed if visible salt in the mixture that did not dissolve 1 Question 17 Analyze the word problem and match the vocabulary terms to the chemicals in the word problem Table salt NaCl is dissolved in 500 00 ml of water the salt water was mixed but there is still visible salt in the mixture that did not dissolve What does heat do to reaction and dissolution rate 2 3 4 1 2 3 Solute 4 Solvent Solution Saturated Solution Solute word Solvent options The energy of the reactants exceeds the activation energy threshold The energy of the products exceeds the activation energy threshold The energy of the reactants is less than the activation energy threshold The energy of the products is less than the activation energy threshold Precioate Saturated Solution

What are greenhouse gases List 5 different green house gases and list the percentages in the atmosphere i Compare the amount of greenhouse gases to non greenhouse gases b Explain how greenhouse gases different from non greenhouse gases C i Why is O not considered a greenhouse gas and CO is considered a greenhouse gas Explanation with graphs about what is happening to the amount of greenhouse gases in the atmos 11 Have they been increasing Decreasing

8 Consider the generic equation for the reaction of the halogens X and Y X2 g 2Y aq 2X aq Y2 8 Is X or Y the more reactive halogen Explain in et

Margarine is a healthier alternative to butter Whereas butter is made from saturated animal fat margarine is made from polyunsaturated vegetable oils Despite being made from vegetable oil margarine is a solid that looks and tastes like butter Select the answer that best explains how this is possible The vegetable oil is heated in the presence of an iron catalyst which leads to halogenation of the alkene functional groups The vegetable oil is processed using hydrogenation which adds hydrogen atoms to the unsaturated hydrocarbon chain Hydrogen bromide is used to hydrohalogenate the double bonds in the hydrocarbon chain of the vegetable oil An enantiomer is used to change the chemical and physical properties of the vegetable oil

Explicit Details What does Aven make a list of on her blog TYPE HERE 2 Characterization Who is Aven writing the blog post for TYPE HERE 3 Chapter Structure Throughout the course of the novel the author brings up tarantulas as a recurring topic Why do you think this is TYPE HERE 4 Inference Do you think the guitar is a clue for the kids Why or why not TYPE HERE

Calculate AE for each of the following a HIS question has multiple parts Work all the parts to get the most po b q 12 kJ w 91 kJ AE 79 kJ q 45 kJ w 22 kJ AE 1 kJ Num LIJ

The aluminum in a package containing 70 ft of kitchen foil weighs approximately 11 ounces Aluminum has a density of 2 70 g cm What is the approximate thickness of the aluminum foil in millimeters 1 ounce 28 4 g 1 ft 12 in 1 in 2 54 cm Thickness mm

1 Explicit Details What does Aven say she ll do the next time she goes past the kid outside TYPE HERE 2 Explicit Details Why is Zion eating outside TYPE HERE 3 Characterization Aven s mom defends Aven when other kids have treated her poorly How does Aven s mom defend her TYPE HERE 4 Inference Why do you think Aven starts a conversation with Zion TYPE HERE

Explicit Details Why does Connor not eat in front of others TYPE HERE 2 Summary Summarize Aven s adoption story TYPE HERE 3 Chapter Structure Throughout the book so far we ve heard Dad call Aven Sheebs as a nickname Where did this nickname come from TYPE HERE Quoting Explicit Details Using a quote from this chapter explain what Mom told Aven she could do of the same time she was teaching her how to live TV