The temperature of a 6.0-g sample of glass changed from 20 c to 45 c when it absorbed 550 j of heat. what is the specific heat of this glass sample?
a. 3.7 j/g c
b. 0.27 j/g c
c. 2300 j/g c
d. 130 j/g c

What overall charge must all compounds have

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.

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here