If the temperature of a piece of aluminum increases from 19°C to 34°C and it absorbs 278.5 cal of heat, what is the mass of the sample?
A. 901.19
B. 86.19
DATA TABLE 1
Specific Heat of Common
Substances
Specific
Heat
Substance Formula
(cal/g
°C
Aluminum A1 0.2157
Zinc Zn 0.0928
Iron Fe 0.1074
Ethanol C2H5OH 0.5783
Tin Sn 0.0543
Nickel Ni 0.1062
C. 18.5 g
D. 0.012 g

Bohr's model could only explain the spectra of which type of atoms? single atoms with one electron single atoms with more than one electron bonded atoms with one electron bonded atoms with more than one electron

Which of these conditions most likely produces an unstable isotope?

Consider the following unbalanced equation for the combustion of hexane: αc6h14(g)+βo2(g)→γco2(g)+δh2o(g) part a balance the equation. give your answer as an ordered set of numbers α, β, γ, use the least possible integers for the coefficients. α α , β, γ, δ = nothing request answer part b determine how many moles of o2 are required to react completely with 5.6 moles c6h14. express your answer using two significant figures. n n = nothing mol request answer provide feedback