From fbc595044f5e670d0b150aaf7c98ec0649ddc1c5 Mon Sep 17 00:00:00 2001 From: Soup <39444003+magicalsoup@users.noreply.github.com> Date: Sat, 30 Mar 2019 09:32:29 -0400 Subject: [PATCH] Update TextBook_Questions_Unit_2_Chemistry.md --- .../TextBook_Questions_Unit_2_Chemistry.md | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/Grade 9/Science/SNC1DZ/TextBook_Questions_Unit_2_Chemistry.md b/Grade 9/Science/SNC1DZ/TextBook_Questions_Unit_2_Chemistry.md index e1a8b5b..ed58bcf 100644 --- a/Grade 9/Science/SNC1DZ/TextBook_Questions_Unit_2_Chemistry.md +++ b/Grade 9/Science/SNC1DZ/TextBook_Questions_Unit_2_Chemistry.md @@ -9,11 +9,11 @@ 5. Do all atoms want to get rid of only the outer shell electrons? ✔ 6. What are the elements I need to know? ✔ 7. What is the difference between an atom and an ion? ✔ -8. PAGE 266 QUESTION 5 (A) +8. PAGE 266 QUESTION 5 (A) ✔ 9. PAGE 266 QUESTION 8 10. PAGE 266 QUESTION 9 & 10 -11. PAGE 233 QUESTION 2 (D) -12. PAGE 240 QUESTION 1 +11. PAGE 233 QUESTION 2 (D) ✔ +12. PAGE 240 QUESTION 1 ✔ 13. PAGE 240 QUESTION 9 14. PAGE 240 QUESTION 10 15. PAGE 215 QUESTION 10 (B) @@ -345,7 +345,7 @@ Solder Materials: Used to join together metal components, such as wires in elect - According to Thomson, where are these particles located in the atom? - randomly spread out in the giant space of the atom, like a plum pudding - Why did Thomson conclude that atoms also contain a positive charge? - - **ASK MS KERAS** + - There was an attraction, a strong suck when he was doing his experiment - According to Thomson, where are the positive charges located in the atom? - Spread evenly across the space of the atom 3. **If a neutral atom has three electons, how many protons does it have?** @@ -373,8 +373,8 @@ Solder Materials: Used to join together metal components, such as wires in elect ## Pages 240 Questions 1 - 5 1. **Do all atoms of the same element contain the same number of protons? Explain** Not all elements has this property, while most do, some may fluctuate -2. **Do all atoms of thhe same element contain the same number of neutrons? Explain** - Not sure +2. **Do all atoms of the same element contain the same number of neutrons? Explain** + Not all elements have the samle number of neutrons, as there are isotopes that contain different numbers of neutrons 3. **Which of the followinig statements are correct? rewrite incorrect statements to correct them** - The aomic number always equals the number of protons. **CORRECT** @@ -597,12 +597,12 @@ Imidogen: HN - Natural gas - CH4 -5. **The formula for propane gas, often used as barbecue fuel, is C3H8. The formula for butane, the liquid fuel in cigarette lighters is C4H10. the was in a candle is a mixture of molecules, one of which is C3H62** +5. **The formula for propane gas, often used as barbecue fuel, is C3H8. The formula for butane, the liquid fuel in cigarette lighters is C4H10. the was in a candle is a mixture of molecules, one of which is C30H62** - What is similar an what is different about the chemical compositions of these three substances? - They all contain a number of Hydrogen and Carbon elements, hydrogen being twice as much as carbon, except theres way more hydrogen and carbon in wax than propane - Consider the physical states of these three substances at room temperature and discuss any relationship you see between the formula and physical state - - **ASK MS KERAS** + - the number of carbon is N and the number of hydrogen is 2*N + 2, and it gets softer as the number of Carbon and hydrogen atom grows - Are these three substances considered molecules? Give reasons for your answer - yes, as it fits the description of a molecule, being 2 or more of the different/same elements joined together