Chemistry, 19.03.2021 18:30, Nataliepavon7
For the dissolving of NH4Cl in water, the lattice energy is greater than the hydration energy.
a. True
b. False
For the dissolving of CaCl2 in water, the lattice energy is greater than the hydration energy.
a. True
b. False
The lattice energy of NH4Cl is greater than that of CaCl2.
a. True
b. False
Water and solid CaCl2 have a lower potential energy than a CaCl2 solution.
a. True
b. False
Answers: 1
Chemistry, 21.06.2019 22:50, Catracho3619
Blank allows you to do calculations for situations in which only the amount of gas is constant a)boyle's law b)combined gas law c)ideal gas law d)dalton's law
Answers: 1
Chemistry, 22.06.2019 04:30, akeemedwards12
Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.
Answers: 2
Chemistry, 22.06.2019 11:40, Wemaybewrong
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
For the dissolving of NH4Cl in water, the lattice energy is greater than the hydration energy.
a. T...
History, 03.12.2021 02:30
Business, 03.12.2021 02:30
Geography, 03.12.2021 02:30
Mathematics, 03.12.2021 02:30
Computers and Technology, 03.12.2021 02:30