![subject](/tpl/images/cats/himiya.png)
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 03:40
Astudent is given a sample of a blue copper sulfate hydrate. he weighs the sample in a dry covered porcelain crucible and got a mass of 23.875 g for the crucible, lid, and sample. the mass of the empty crucible and lid was found earlier to be 22.652 g. he then heats the crucible to expel the water of hydration, keeping the crucible at red heat for 10 minutes with the lid slightly ajar. on colling, he finds the mass of crucible, lid, and contents to be 23.403 g. the sample was changed in the process to very light clue anhydrous cuso4. if there are again 100.0 g of hydrate, how many grams of cuso4 are in it? how many moles of cuso4? (hint: molar mass of cuso4 = 159.6 g / mole. what per cent of the hydrate is cuso4? you may convert the mass of cuso4 to moles.)
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 04:20
The equation below shows the reaction of zinc with hydrochloric acid (hcl). zn (s) + 2 hcl (aq) —> zncl2 (aq) + h2 (g) what will happen if the concentration of hcl is decreased? a. more zncl2 will be produced. b. the reaction rate will slow down. c. the hydrochloric acid will become more acidic. d. the reaction will produce water instead of hydrogen gas.
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 07:00
Choose the correct statement about licensed veterinarians in the united states. a. they must be certified by the avma. b. they can treat all nonhuman animals. c. they can can treat only animals specified on the license. d. they must choose a specialty.
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 07:30
Which statement explains which thermometer is more appropriate to measure the temperature of a liquid at 43.6 degrees celsius a) thermometer a, because it measures temperature more accurately than thermometer b b) thermometer b, because it measures temperature more accurately than thermometer a c) thermometer a, because it measures temperature more precisely than thermometer b d) thermometer b, because it measures temperature more precisely than thermometer a
Answers: 2
You know the right answer?
Propose a distinguishing test between oxygen and carbon(iv)oxide...
Questions
![question](/tpl/images/cats/User.png)
SAT, 23.09.2020 02:01
![question](/tpl/images/cats/mat.png)
Mathematics, 23.09.2020 02:01
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 23.09.2020 02:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 23.09.2020 02:01
![question](/tpl/images/cats/istoriya.png)
History, 23.09.2020 02:01
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 23.09.2020 02:01
![question](/tpl/images/cats/mat.png)
Mathematics, 23.09.2020 02:01
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 23.09.2020 02:01
![question](/tpl/images/cats/istoriya.png)
History, 23.09.2020 02:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 23.09.2020 02:01
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.09.2020 02:01
![question](/tpl/images/cats/mat.png)