3.03 Conservation of Mass Lab 2

Skunks have several molecules that make their spray smell absolutely terrible to most animals. One chemical in skunk spray is called 2-butene- 1-thiol, and it has a molecular weight of 88 grams per mole. We'll call this one compound "B" for short. Another skunk scent molecule is 2-quinolinemethanethiol, which has a molecular weight of 175 grams per mole. We'll call this one compound "Q" for short. If a skunk walked by your window at night, and let out a quick little spray, which compound would you smell first, compound B or compound Q? Explain your answer. (Fun fact: the only predator of the skunk is the Great Horned Owl - I guess it can't smell a skunk!)

Determine the standard enthalpy change for each of the following reactions. Report your answers to the nearest 0.1 kJ. Appendix D Part 1 2NH3(g)+302(g)+2CH4(g) 2HCN(g)+6H2O(g) kJ eTextbook and Media Hint Part 2 2AI(s)+3CI2(g) 2AICI3(s) kJ

I have this assignment for my chemistry class and my teacher is not helping me and my peers out at all. If you can't answer all the questions, I understand. It's just read stressing us all out and I was hoping to get some clarification here.

M Apple Google Disney ESPN Yahoo! Biomedical Careers Program ☆ CATEG WHOS r B r SLIVET H₂ (9) + F2(g) → 2HF(g) PC15 (9) → PC13 (9) + Cl₂ (9) CO₂(g) + H₂(g) → CO(g) + H₂O(g) Apple iCloud Yahoo Images Bing Google Wikipedia Facebook Twitter D2L b G 3 2H₂O2 (1) → 2H₂O(1) + O2(g) prod03-cnow-owl.cengagenow.com 2CO2(g) + 5H2(g) → C2H2 (9) + 4H₂O(g) D2L VULLI CETURT JU D2L LITUNTUT T Clear All AS > 0 AS < 0 COWLv2 |... b too close to decide SISS LinkedIn The Weather Channel Yelp TripAdvisor C M G с G C VVIML. + 88 M

Answer the questions in the table below about this molecule:

How much zinc oxide powder should you add to 2 oz (AV) of 5% zinc oxide (ZnO) ointment to make a 10% ZnO ointment?   a 1.6 g   b 3.15 g   c 3.46 g   d 2.84 g   e 95 g

Write a balanced equation for the following by inserting the correct coefficients (if a coefficient = 1, enter "1" in the provided box). BC13(g) + H₂O()- H3BO3(s) + HCl(g)

duction to MasteringChemistry - Attempt 1 duction to Vocabulary Questions Reset Help maple 1. Hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as pine cedar elm and pine mango 2. Conifer leaves are generally thin and needle-like, while seeds are contained in cones. Conifers cedar include pine and elm elm 3. Deciduous trees lose their leaves seasonally and include trees such as mango and maple 4. Evergreens are plants that maintain their leaves in all seasons and include trees such as elm pine and cedar Submit Previous Answers Request Answer Introduction to Ma. fa トト」 トI fo fo ins prt sc 8% 8 9 10

Which one is it?

4) The intensity of gamma rays, X-rays, or any other radiation is A) inversely proportional to the cube of the distance from the source. B) inversely proportional to the distance from the source. C) inversely proportional to the square of the distance from the source. D) directly proportional to the square of the distance from the source. E) directly proportional to the distance from the source. dele (1

1) The question screenshot has been attached down below answer step- by-step.

The movie below shows some molecules in a tiny sample of a mixture of gases. 12345 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ||||||||||||||||||I Drag the slider to see how the molecules move. Does a chemical reaction happen during this movie? If a chemical reaction does happen, write a balanced chemical equation for it. П yes no carbon nitrogen chlorine key hydrogen oxygen bromine X

2. In a Mars Direct mission, the astronauts would return home in an Earth Return Vehicle (ERV) fueled by     methane and oxygen produced from terrestrial hydrogen and Martian CO2     helium-3 extracted from the lunar surface     finely-ground Martian rocks accelerated by an electromagnetic mass driver     cheap, traditional kerosene fuel brought from Earth   We might go back to the Moon someday to mine the lunar surface for an energy resource called     methane     antimatter     hydrazene     helium-3

Answer question 5

Can you answer a and b please?

Answer the questions in the table below about the shape of the carbon dioxide (CO₂) molecule. How many electron groups are around the central carbon atom? Note: one "electron group" means one lone pair, one single bond, one double bond, or one triple bond. What phrase best describes the arrangement of these electron groups around the central carbon atom? (You may need to use the scrollbar to see all the choices.) 0 (choose one) × S î