pH pOH [H*] [OH] Acidic or basic? a. b. С. d. 10.4 e. f. g. h. 5.3 i. k. I. 3.5 x 104 m. n. o. р. 8.6 x 109

what is the name of this molecule ?

2A Choose an 2B item. Choose an Choose an 20 item. item. Choose an Choose an 2D Choose an item. item. item. v. Complete the predicted observations using 'bubbles', 'no rxn' or the name of the ppt: sodium carbonate + nitric acid – we expect to see Click or tap here to enter text. barium nitrate + nitric acid - we expect to see Click or tap here to enter text. sodium sulfate + barium nitrate – we expect to see Click or tap here to enter text. sodium sulfate + nitric acid - we expect to see Click or tap here to enter text. sodium sulfate + sodium carbonate - we expect to see Click or tap here to enter text. barium nitrate + sodium carbonate- we expect to see Click or tap here to enter text. vi. Choose A, B, C or D to identify the solution in each bottle. barium nitrate nitric acid sodium sulfate sodium carbonate Choose an item. Choose an item. Choose an item. Choose an item.

V Shident Portal X C Clever | Portal X C lever Portal x O Microsoft Offic x O Mail - Abdi, M X * Short Story.do x O Schoology A districtims.seattleschools.org/common-assessment-delivery/start/4683263317?action=onresume&submissionld=443627248 Chemistry A x 4 Atoms.1 Quiz 4 of 5 POSSIBLE POINTS: 3 Imagine you start with an atom that has 7 protons, 7 neutrons, and 7 electrons, If you add 1 proton and 1 electron, then the element will and the element will be The mass of the element will and the mass would be The charge of the element will KA v and the charge would be PERIODIC TABLE ELEMENTS 1-20 Не HEUUM H 4.00 ERYLLA BORON GARBON NITROGEN ORYOEN FLUORINE HEON 10 Li Be B F Ne SOOIUM 11 MAGNESUM 12 ALUMUN 13 SUCON PHOSHOR CHLORINE 17 SULFUR ARGON 14 15 16 18 Na Mg Al S CI Ar POTASSUM CALCIUM 20 K Ca 1 Next g Schoology-Googl. O Settings

15 of 16 I Review | Constants | Periodic Table Part A H O ||| CH3-C-N-CH2-CH3 Spell out the full name of the compound. Submit Request Answer Part B CH3-CH2-CH2 C-NH2 Spell out the full name of the compound. Pearson carson Education Inc. All rights reserved.| Terms of Use | Privacy Policy | Permissions | Contact Us | 12:14 AM xpジC 10/29/2020 PrtSc Delote F10 08.

Please answer in full sentence: Once an antiviral agent has been found, scientists go about trying to determine the formula of this substance. What steps must they take to determine its formula?

A balloon filled with He(g) contains the same number of atoms as a similar balloon filled with Ne(g). Both balloons are at the same temperature and pressure as the air around them. Which one of the following statements is correct? Both balloons have the same volume. Both balloons have the same mass of gas. Both balloons will fall to the ground if released. Both balloons have the same density of gas. Helium balloon will float in air if released, but the neon Neon balloon will fall to the ground.

ge-R x 21/FA-CHM-121-08 General Che * OWLv2 | Online teaching and lea G how to find mass percent - Goo x + mengagenow.com/ilm/takeAssignment/takeCovalentActivity.do?locator=assignment-take A sample of gas mixture from a neon sign contains 5.12 x 10 mol Ne and 4.40 × 10¬4 mol Kr. What are the mass percentages of Ne and Kr in the gas mixture? Mass percentages of Ne = Mass percentages of Kr = Submit Answer Try Another Version 6 item attempts remaining

Give typed full explanation not a single word hand written otherwise leave it

Element XYZ has two isotopes: XYZ-79 (mass =69.9943 amu)  and XYZ-81 (mass=80.9893 amu). If the relative percent abundancy of XYZ-79 is 50.6865% while XYZ-81 is 49.3135%, calculate for the average molar mass of XYZ. Express your answer in 3 significant figures.