math
What is the correct set up for: How many milligrams are in 67 Kilograms? Is this correct: 67kg x (1g/10^3kg) x (1mg/10^-3g) Thank you!
Math
Done earlier by Steve Thank You Answer is B 1600
Math
(93.789 - 5.40) x 18.057 = answer should be in proper # of SF My answer is 1596.040173 But my choices are A)1596,B)1600,C)1596.239,D)1590,E)1596.2 So would the answer be 1590 because of the 3 SF Thank You!
Math
(93.789 - 5.40) x 18.057 = answer should be in proper # of SF My answer is 1596.040173 But my choices are A)1596,B)1600,C)1596.239,D)1590,E)1596.2 So would the answer be 1590 because of the 3 SF Thank You!
Math
What is the sequence of conversion factors for units if you change from ft/sec. to km/hour? Is it ft/sec x sec/min x min/hour x ft/m x km/m?
chemistry
The density of sample measurements taken by a tech are: 0.810g/mL, 1.375g/mL, 2.046g/mL. The Actual density is 1.027g/mL. Are these measurements by the tech. precise accurate or neither or both Is the correct answer: Neither??? Thanks,
chemistry
I got it I take 18 and multiple by 5.172=93.1 g
chemistry
Mg3N2 +6H2O- 3Mg(OH)2 + 2NH3-- How many grams of H2O are needed to produce 150g of Mg(OH)2? I thought I had this but.....the correct answer should be 93 grams Where did I go wrong?? 1) Change 150 g Mg(OH)2 into moles by dividing by molar mass from periodic table. 150 / (24 + 3...
Chemistry
187.55g/moles
Chemistry
I got it myself: Yeah! 63.55 + (14.01 + 48)x 2 = 187.55g/moles
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