Isotopes are elements with the same number of protons but different number of neutrons
If the Kelvin
temperature of a gas is doubled, the volume of the gas will increase by two. It
follows Charles law where in for a mixed gas of mass, the volume is directly
proportional to the temperature at constant pressure.
Answer:
C. polar covalent: electrons shared between sulfur and oxygen but attracted more to the sulfur
Explanation:
Answer:
Sand has less specific heat than water.
Explanation:
Specific Heat is amount of heat needed per unit mass, to raise temperature by 1 degree celsius.
More specific heat means more heat energy needed to increase temperature. It implies - more time needed to absorb heat, increase temperature; and also more time needed to lose its heat.
Less specific heat means less heat energy needed to increase temperature. It implies - less time needed to absorb heat, increase temperature; and also less time needed to lose its heat.
Sand has less specific heat than water. So, it needs less heat absorption to increase temperature by per unit (celsius) ; than water. Hence, same level of heat to both sand & water ; increase temperature of sand more than water, & make it more hot.
Answer:
Explanation:
2 NH4I + Pb(NO3)2 = PbI2 + 2 NH4NO3
2 mol 1 mol
x ml 751 ml
0.550 M 0.380 M
0.380 mol/1000 ml x 751 ml = 0.285 mol Pb(NO3)2
0.285 mol Pb(NO3)2 x 2 mol NH4I/1 mol Pb(NO3)2=0.571 mol NH4I needed
0.571 mol NH4I/0.550 mol/1000 ml=1038 ml
