Chemistry, 20.10.2020 19:01 ladypink94
A beaker contains a mixture of sand and salt. A student adds water to dissolve the salt. Which processes can be used to
separate out the sand and salt?
A. distillation to collect both the sand and the salt
B. filtration to collect both the sand and the salt
C. distillation to collect the sand and filtration to collect the salt
D. filtration to collect the sand and distillation to collect the salt
Answers: 2
Chemistry, 22.06.2019 10:30
Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive
Answers: 2
Chemistry, 22.06.2019 16:00
What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided
Answers: 2
Chemistry, 22.06.2019 16:30
Correct relationship between molecular formula and empirical formula
Answers: 1
Chemistry, 22.06.2019 16:50
Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m
Answers: 3
A beaker contains a mixture of sand and salt. A student adds water to dissolve the salt. Which proce...
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