4. Given the data shown, what two substances does the unknown mixture contain?
Substance Appearance
Vinegar
Litmus
(ph)
R-B Base
B-R Acid
Biuret
(protein)
lodine
(starch)
Powder
0
+
Baking
Powder
Baking
Soda
Corn
Starch
Powder
Base
+
Powder
0
Gelatin
Crystal
Acid
+
Salt
Crystal
0
Unknown
Acid
Crystal
& Powder
Mixed
Mixed
A. Gelatin and baking powder
B. Gelatin and baking soda
C. Gelatin and corn starch
D. Salt and corn starch
Answers: 2
Chemistry, 21.06.2019 18:10
Which is true of transition metals when moving from left to right on the periodic table? the d sublevels are not filled across the period. the cation radii become larger across the period. atomic radii increase slightly and then start to decrease. atomic radii decrease slightly and then start to increase. o
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Chemistry, 22.06.2019 05:40
Calculate: select the worksheet tab. this tab you calculate the analyte concentration. ï‚· fill in the first set of boxes ("moles h2so4" and "moles naoh") based on the coefficients in the balanced equation. (if there is no coefficient, the value is 1.) ï‚· record the appropriate volumes in the "ml naoh" and "ml h2so4" boxes. ï‚· record the concentration of the titrant in the m naoh box. click calculate. what is the concentration listed
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Chemistry, 22.06.2019 15:30
Count the number of each type of atom in the equation below, and then balance the equation. write in the numbers of atoms and coefficients. add a 1 if there should be no coefficient. cs2(l) + o2(g) → co2(g) + so2(g) c [ ] s [ ] o > c [ ] s [ ] o [ ] cs2(l) + [ ] o2(g) > [ ] co2(g) + [ ] so2(g)
Answers: 3
Chemistry, 22.06.2019 16:10
Given the following equation: 2a1 + 3mgcl2 --> 2alcl3 + 3mg how many moles of aluminum chloride are produced from 2.5 moles of magnesium chloride?
Answers: 1
4. Given the data shown, what two substances does the unknown mixture contain?
Substance Appearance...
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