I dont understand what Im doing wrong? i calculated mass percent and got 17.84% Calculate the...
What am I doing wrong? Part B Write the net ionic equation for the reaction of Ag in HNO3 (aq). Express your answer as a net ionic equation. Identify all of the phases in your answer. ΑΣΦ ? а xa Хь a b X X b . + Ag(s) + 2H+ (aq)+2Ag + (aq) + H, (aq) Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining
Please help! I got this wrong. Please show work too. Thank you! Find the number of atoms in a copper rod with a length of 9.90 cm and a radius of 1.00 cm. The density of copper is 8.96 g/cm3 Express the number of atoms to three significant figures or x ion 芻 2.64 1022 Cu atoms Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining
I need help doing this problem out, 560 did not work so I was wondering if someone could show me steps to see what I did wrong A Carnot engine performs work at the rate of 600 kW with an input of 940 kcal of heat per second. Part A If the temperature of the heat source is 560 °C, at what temperature is the waste heat exhausted? Express your answer using two significant figures. ΑΣφ TL = 560 °C...
Please answer correctly, posted these before and got wrong answers. Problem 14.23 l Review 1 Constants 1 Periodic Table Y Part B The position of a 46 g oscillating mass is given by z() (1.8 cm) cos 13t, where t is in Determine the period Express your answer in seconds. seconds. T-0.68 Submit Previous Answers Request Answer Incorrect:; Try Again; 5 attempts remaining Part F Determine the velocity at t-0.41 s Express your answer in meters per second. m/s Submit...
answer both question i got 2,2-dimethyl-4-ethylhexane and it says wrong Review | Cons CH; CH-CH2 CH3-C-CH2-CH-CH2-CH; CH3 Spell out the full name of the compound. Submit Previous Answers Request Answer X Incorrect; Try Again: 5 attempts remaining Part D Spell out the full name of the compound.
its wrong I don't know why... if I entered it wrong any of you guys know what I should put it in the box? Identify the daughter nucleus when the following undergo alpha decay: Part A 224 88 Submit Previous Answers Request Answer Incorrect; Try Again Part B 208 Submit Previous Answers Request Answer Incorrect; Try Again Part C 239 ABC123: 14 . qwertyuop a 5 d f g h i k I I t ? * Ê ý b...
I got -0.028 and I got -0.0028 those are wrong answers I need help in this questions please. Express your answer using two significant figures. Constants | Periodic Table A transverse wave on a string is given by the formula D(z, t 0.13 sin(3.2 -49.0t), where D and r are in nm and t is in s. D(0.56m, 6.2 x 10-2s)- 0.028 ILI Submit Incorrect: One attempt remaining: Try Again Part B 2 s, what is the (transverse) velocity of...
I keep getting the wrong answer on this. I dont know what im doing wrog anymore. Please help Draw 3-methylcyclobutanol. Include all hydrogen atoms.
i got A and B incorrect. this is what i was doing. i cannot submit again but i would like to know what am indoijg wrong. Equation of G Google M Gmail lyrics 2 learn Fantasy Football Ollin Math hapter 8 tercise 8.31 a Rev For the reaction shown, calculate how many grams of oxygen form when each quantity of reactant completely reacts 2 HgO(s) + 2 Hg(l) +0,(9) Part A 2.32 g HgO m=5028 Previous Answers All attempts used;...
So, I understand I have to use point slope, but I do not understand why I am wrong. So, an answer and an explanation please help! Review | Constants | Periodic Table Part A The position graph of the figure (Figure 1) shows a dog slowly sneaking up on a squirel, then putting on a burst of speed. For how many seconds does the dog move at the slower speed? Express your answer with the appropriate units. Figure 1 of...