https://padlet.com/hanhbui/rxn8_2 Write your first name and last name initial. Put your response in the correct column. Make sure to explain your answer. en-us 2019-04-08 20:29:19 UTC 2025-11-23 19:07:33 UTC hello@padlet.com hanhbui https://padlet.com/hanhbui/rxn8_2/wish/349707690 Answer is A 
Reason is because an ideal gas requires lower pressure]]> 2019-04-08 20:29:19 UTC https://padlet.com/hanhbui/rxn8_2/wish/349707690 https://padlet.com/hanhbui/rxn8_2/wish/350065239 the Answer is C beause electronegativity gets higher going to the right]]> 2019-04-09 17:56:50 UTC https://padlet.com/hanhbui/rxn8_2/wish/350065239 https://padlet.com/hanhbui/rxn8_2/wish/350067527 The answer is B because of how protons are positive and electrons are negative so if there is a equal amount of protons and electrons the atom becomes neutral.]]> 2019-04-09 18:00:44 UTC https://padlet.com/hanhbui/rxn8_2/wish/350067527 https://padlet.com/hanhbui/rxn8_2/wish/350070441 The Answer is B. The outer shell has the valence electrons so the answer is B.]]> 2019-04-09 18:05:32 UTC https://padlet.com/hanhbui/rxn8_2/wish/350070441 https://padlet.com/hanhbui/rxn8_2/wish/350072281 The answer is A. This is since the reference table shows that sodium is 2-8-1 while in ground state and energy is not moving.]]> 2019-04-09 18:08:51 UTC https://padlet.com/hanhbui/rxn8_2/wish/350072281 https://padlet.com/hanhbui/rxn8_2/wish/350074573 Answer is D
Reason is because when an energy is being absorbed its endothermic and also energy is required in order to break a chemical bond so the only equation that represents this is H2+energy>H+H]]> 2019-04-09 18:13:10 UTC https://padlet.com/hanhbui/rxn8_2/wish/350074573 https://padlet.com/hanhbui/rxn8_2/wish/350075385 The answer is A. Since it has the lowest density and when changed to K is still has the smallest density, the answer must be A.]]> 2019-04-09 18:14:41 UTC https://padlet.com/hanhbui/rxn8_2/wish/350075385 https://padlet.com/hanhbui/rxn8_2/wish/350077884 The answer is D. The equation being showed is a compound which can be broken once it's in a bond. You also need energy to break a bond so your answer must be D the only one showing that on the reactant side.]]> 2019-04-09 18:19:26 UTC https://padlet.com/hanhbui/rxn8_2/wish/350077884 https://padlet.com/hanhbui/rxn8_2/wish/350079019 The answer is D. Kinetic energy is known as heat energy. This is also known as a change in temperature.]]> 2019-04-09 18:21:31 UTC https://padlet.com/hanhbui/rxn8_2/wish/350079019 https://padlet.com/hanhbui/rxn8_2/wish/350079034 Answer is B
Reason is because electronegativity describes the attraction a atom has for electrons in a chemical bond.]]> 2019-04-09 18:21:34 UTC https://padlet.com/hanhbui/rxn8_2/wish/350079034 https://padlet.com/hanhbui/rxn8_2/wish/350079465 The answer is D because the wave-mechanical model determines where an electron is most likely found.]]> 2019-04-09 18:22:29 UTC https://padlet.com/hanhbui/rxn8_2/wish/350079465 https://padlet.com/hanhbui/rxn8_2/wish/350080055 The answer is D because the molecules in NH3 are polar.]]> 2019-04-09 18:23:39 UTC https://padlet.com/hanhbui/rxn8_2/wish/350080055 https://padlet.com/hanhbui/rxn8_2/wish/350080424 The answer is A because ammonia is a compound.]]> 2019-04-09 18:24:21 UTC https://padlet.com/hanhbui/rxn8_2/wish/350080424 https://padlet.com/hanhbui/rxn8_2/wish/350080725 Answer is B
Reason is Fe^+2O^-2 switch oxidation states and voila you get FeO2]]> 2019-04-09 18:25:00 UTC https://padlet.com/hanhbui/rxn8_2/wish/350080725 https://padlet.com/hanhbui/rxn8_2/wish/350080861 The answer is Kr because when rubidium loses an electron, the electron configuration will be similar to Kr.]]> 2019-04-09 18:25:14 UTC https://padlet.com/hanhbui/rxn8_2/wish/350080861 https://padlet.com/hanhbui/rxn8_2/wish/350081504 The answer is A. Endothermic tends to be with heat energy. Since it's changing from Solid to Gas so it's a chemical change.]]> 2019-04-09 18:26:35 UTC https://padlet.com/hanhbui/rxn8_2/wish/350081504 https://padlet.com/hanhbui/rxn8_2/wish/350082438 Answer is C because when the water boils it leaves behind what was dissolved in it]]> 2019-04-09 18:28:28 UTC https://padlet.com/hanhbui/rxn8_2/wish/350082438 diego_sernadas https://padlet.com/hanhbui/rxn8_2/wish/350083181 The reason is because the test tube is an open system.]]> 2019-04-09 18:29:58 UTC https://padlet.com/hanhbui/rxn8_2/wish/350083181 https://padlet.com/hanhbui/rxn8_2/wish/350083348 Answer is B 
The nucleus contains neutrons, there will always be an electron located in the outer most shell.]]> 2019-04-09 18:30:20 UTC https://padlet.com/hanhbui/rxn8_2/wish/350083348 https://padlet.com/hanhbui/rxn8_2/wish/350084564 The answer is D. Changing the temperature is the only factor out of the choices to change the chemical equilibrium.]]> 2019-04-09 18:33:06 UTC https://padlet.com/hanhbui/rxn8_2/wish/350084564 diego_sernadas https://padlet.com/hanhbui/rxn8_2/wish/350085685 The answer is B.
Protons plus electrons will give you 0 which is neutral.]]> 2019-04-09 18:35:29 UTC https://padlet.com/hanhbui/rxn8_2/wish/350085685 https://padlet.com/hanhbui/rxn8_2/wish/350085953 Answer is D
This is a double replacement reaction because the elements Cl , N, and O switched places in the chemical equation]]> 2019-04-09 18:36:00 UTC https://padlet.com/hanhbui/rxn8_2/wish/350085953 https://padlet.com/hanhbui/rxn8_2/wish/350129157 Adrian Garcia (c) #3 
The answer is C because:

]]> 2019-04-09 20:28:44 UTC https://padlet.com/hanhbui/rxn8_2/wish/350129157 https://padlet.com/hanhbui/rxn8_2/wish/350129628 Adrian Garcia (c) #14
The answer is C because the elements are arranged in order of increasing atomic number.]]> 2019-04-09 20:30:25 UTC https://padlet.com/hanhbui/rxn8_2/wish/350129628 https://padlet.com/hanhbui/rxn8_2/wish/350129865 Adrian Garcia (c) #11
The answer is B because the nucleus charge is equal to the proton charge.]]> 2019-04-09 20:31:16 UTC https://padlet.com/hanhbui/rxn8_2/wish/350129865 https://padlet.com/hanhbui/rxn8_2/wish/350130348 Adrian Garcia (c) #2
The answer is B because to find the percent composition, you divide the mass of KNO₃ by the mass of H₂O]]> 2019-04-09 20:33:05 UTC https://padlet.com/hanhbui/rxn8_2/wish/350130348 https://padlet.com/hanhbui/rxn8_2/wish/350130705 Adrian Garcia (c) #19
The answer is B because ionic and molecular are two terms that represent major categories of compounds.]]> 2019-04-09 20:34:18 UTC https://padlet.com/hanhbui/rxn8_2/wish/350130705 https://padlet.com/hanhbui/rxn8_2/wish/350131047 Adrian Garcia (c) #7
The radius of a cesium ion is smaller than the radius of a cesium atom because a cesium ion has less electron shells than a cesium atom.]]> 2019-04-09 20:35:37 UTC https://padlet.com/hanhbui/rxn8_2/wish/350131047 https://padlet.com/hanhbui/rxn8_2/wish/350131289 Adrian Garcia (c) #22
The answer is B because metals are excellent conductors of electricity.]]> 2019-04-09 20:36:25 UTC https://padlet.com/hanhbui/rxn8_2/wish/350131289 https://padlet.com/hanhbui/rxn8_2/wish/350131723 Adrian Garcia (c) #1
The answer is B because: ]]> 2019-04-09 20:37:56 UTC https://padlet.com/hanhbui/rxn8_2/wish/350131723 https://padlet.com/hanhbui/rxn8_2/wish/350132234 Adrian Garcia (c) #13
The answer is D because J.J. Thomson’s experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic electrons.]]> 2019-04-09 20:39:37 UTC https://padlet.com/hanhbui/rxn8_2/wish/350132234 https://padlet.com/hanhbui/rxn8_2/wish/350187194 The answer is A. ]]> 2019-04-10 01:27:33 UTC https://padlet.com/hanhbui/rxn8_2/wish/350187194 https://padlet.com/hanhbui/rxn8_2/wish/350188670 The answer is D.
The reason is because in order to break a chemical bond, energy is required so it the energy is being absorbed to break the bond.]]> 2019-04-10 01:33:59 UTC https://padlet.com/hanhbui/rxn8_2/wish/350188670 https://padlet.com/hanhbui/rxn8_2/wish/350189772 The answer is B. 
The reason is because collision theory require two particles to interact with the same amount of proper energy and orientation.]]> 2019-04-10 01:38:25 UTC https://padlet.com/hanhbui/rxn8_2/wish/350189772 https://padlet.com/hanhbui/rxn8_2/wish/350190624 The answer is B.

]]> 2019-04-10 01:42:25 UTC https://padlet.com/hanhbui/rxn8_2/wish/350190624 https://padlet.com/hanhbui/rxn8_2/wish/350192593 Answer is C.) 4.29L]]> 2019-04-10 01:52:51 UTC https://padlet.com/hanhbui/rxn8_2/wish/350192593 https://padlet.com/hanhbui/rxn8_2/wish/350192924 The answer is Krypton because rubidium in rubidium chloride is most likely to lose an electron and if it loses an electron then it will have the same electron configuration as krypton in the ground state.]]> 2019-04-10 01:54:49 UTC https://padlet.com/hanhbui/rxn8_2/wish/350192924 https://padlet.com/hanhbui/rxn8_2/wish/350193233 The answer is A.
C can not be broken down anymore.

]]> 2019-04-10 01:56:28 UTC https://padlet.com/hanhbui/rxn8_2/wish/350193233 https://padlet.com/hanhbui/rxn8_2/wish/350193329 The answer is A.) ammonia because every other choice is an element and elements can not be broken down; the other choices are aluminum, antimony, and argon.]]> 2019-04-10 01:57:00 UTC https://padlet.com/hanhbui/rxn8_2/wish/350193329 https://padlet.com/hanhbui/rxn8_2/wish/350193619 The answer is D.) NH3 because Nitrogen is surrounded by 3 hydrogen and it is usually asymmetrical when there are 2 elements and a subscript is uneven.]]> 2019-04-10 01:58:48 UTC https://padlet.com/hanhbui/rxn8_2/wish/350193619 https://padlet.com/hanhbui/rxn8_2/wish/350193975 The answer is C because percent composition is part of whole over whole multiplied by 100 and the part is 25g and the whole is 225g because 25g of KNO3 is dissolved into 200g of H20 so it must be (25/225) x 100.]]> 2019-04-10 02:01:02 UTC https://padlet.com/hanhbui/rxn8_2/wish/350193975 https://padlet.com/hanhbui/rxn8_2/wish/350194016 The answer is A.
When speeding up a reaction, only the rate of reaction increase and not the activation of energy. It stays the same.]]> 2019-04-10 02:01:18 UTC https://padlet.com/hanhbui/rxn8_2/wish/350194016 https://padlet.com/hanhbui/rxn8_2/wish/350194919 The answer is D.
The reason is because Cl and NO got replaced.

]]> 2019-04-10 02:07:02 UTC https://padlet.com/hanhbui/rxn8_2/wish/350194919 https://padlet.com/hanhbui/rxn8_2/wish/350194942 The answer is B.) the nucleus because the nucleus contains protons and electrons and protons have a positive charge and neutrons have no charge so the nucleus has an overall positive charge.]]> 2019-04-10 02:07:12 UTC https://padlet.com/hanhbui/rxn8_2/wish/350194942 https://padlet.com/hanhbui/rxn8_2/wish/350195870 The answer is B.
The reason is because Valence electrons are known as the last electrons which are normally found in the last shell which is the outer most.]]> 2019-04-10 02:12:13 UTC https://padlet.com/hanhbui/rxn8_2/wish/350195870 https://padlet.com/hanhbui/rxn8_2/wish/350196126 The answer is C.) atomic number because when you move from left to right in a periodic table the atomic number increases in order]]> 2019-04-10 02:13:36 UTC https://padlet.com/hanhbui/rxn8_2/wish/350196126 https://padlet.com/hanhbui/rxn8_2/wish/350196340 The answer is A.
The reason is because if you look at table S and compare it to the others, you can see that Ne has the lowest density]]> 2019-04-10 02:14:39 UTC https://padlet.com/hanhbui/rxn8_2/wish/350196340 https://padlet.com/hanhbui/rxn8_2/wish/350196346 The answer is B.) Ionic and molecular because ionic compound is a category unlike empirical which is just about the subscripts and we have not gone over nuclear compounds yet and molecular compounds are also known as covalent compounds and we have gone over ionic and covalent compounds so the answer is clearly B.]]> 2019-04-10 02:14:40 UTC https://padlet.com/hanhbui/rxn8_2/wish/350196346 https://padlet.com/hanhbui/rxn8_2/wish/350196995 The answer is B because entropy is defined as disorder and the only choice that has disorder is h2o from gas to solid, this does not follow the water cycle so it is not in order.]]> 2019-04-10 02:17:36 UTC https://padlet.com/hanhbui/rxn8_2/wish/350196995 https://padlet.com/hanhbui/rxn8_2/wish/350197327 2019-04-10 02:19:20 UTC https://padlet.com/hanhbui/rxn8_2/wish/350197327 https://padlet.com/hanhbui/rxn8_2/wish/350198057 The answer is C.
The reason is because as heat moves from a solid to a gas, heat expands so and so does gas particles so energy is being released.]]> 2019-04-10 02:23:13 UTC https://padlet.com/hanhbui/rxn8_2/wish/350198057 https://padlet.com/hanhbui/rxn8_2/wish/350198256 The answer is B because h2o and h2o2 are both compounds since they have at least 2 elements and they are different chemicals and different chemicals have different properties.]]> 2019-04-10 02:24:13 UTC https://padlet.com/hanhbui/rxn8_2/wish/350198256 https://padlet.com/hanhbui/rxn8_2/wish/350198652 The answer is D.
The reason is because in order to keep the equation balanced, the equation if their is 6 moles of O2 on the reactant side then their has to be 4 moles on the product side.]]> 2019-04-10 02:26:24 UTC https://padlet.com/hanhbui/rxn8_2/wish/350198652 https://padlet.com/hanhbui/rxn8_2/wish/350198660 The answer is B.) thermal, chemical, electromagnetic because thermal energy is relating to heat and it is not called temperature energy so choices c and d are out. Electronegativity is not a form of energy so that only leaves choice B which does have 3 forms of energy.]]> 2019-04-10 02:26:26 UTC https://padlet.com/hanhbui/rxn8_2/wish/350198660