Chemistry, 17.10.2021 14:00 BIGchunguslol
A student is given four solid samples labeled W, X, Y, and z. All except Z have a metallic luster. She is told that the solids are gold, lead sulfide, quartz (SiO2), and iodine. The results of her investigation are:
w is a good electrical conductor while X, Y, Zare poor electrical conductors
When hit with a hammer w flattens out, x shatters into many pieces, Y is smashed into powder and Z is cracked
When heated with a Bunsen burner, Y melts with some sublimation, but X, W, and Z do not melt
When treated with concentrated acid, X dissolves but there is no effect on W, Y, and Z
On the basis of the test results, identify the solids.
Answers: 1
Chemistry, 22.06.2019 10:30
Balance and in which category does it fit in? single or double displacement or synthesis or decomposition? (a) k2 o → k + o2 (b) na + i2 → nai (c) cu(no3 )2 + naoh → cu(oh)2 + nano3 (d) kclo3 → kcl + o2 (e) ca(no3 )2 + hbr → cabr2 + hno3 (f) sn(oh)2 → sno + h2 o (g) p4 + n2 o → p4 o6 + n2 (h) fe + al2 (so4 )3 → feso4 + al (i) alcl3 + na2 co3 → al2 (co3 )3 + nacl (j) c3 h6 + o2 → co2 + h2 o
Answers: 1
Chemistry, 22.06.2019 12:30
If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.
Answers: 3
A student is given four solid samples labeled W, X, Y, and z. All except Z have a metallic luster. S...
Geography, 30.06.2019 04:30
History, 30.06.2019 04:30
Mathematics, 30.06.2019 04:30
Computers and Technology, 30.06.2019 04:30
Mathematics, 30.06.2019 04:30
English, 30.06.2019 04:30
Mathematics, 30.06.2019 04:30