A substance is homogenous but does not have a ficed composition. True / false

What is the single temperature in degrees Celsius which has the same magnitude in degrees Fahrenheit?

Jaden listed the similarities of using coal, natural gas, and petroleum to generate electricity. Coal, natural gas, and petroleum: - use turbines - require heat - convert electrical energy to kinetic energy - produce pollution in the form of smoke

Evaporation is a process that requires energy to occur. Evaporation is a (n) blank? reaction.

If 89.6 joules of heat are needed to heat 20 g of iron from 30 c to 40 c, what is the specific heat of the iron in j/cg

Why is the Iron symble on the periodic table Fe?

The reaction of methane with water to form carbon dioxide and hydrogen is non - spontaneous at 298 k. at what temperature will this system make the transition from non-spontaneous to spontaneous? the data refer to 298 k.

The sedimentary rock formed when water deposits tiny particles of clay in very thin flat layers is called? a. gymsum b. shale c. limestone d. calcite

What change into velocity

Would you expect the h atoms to remain bonded to each other, or would the molecule fall apart?

Conductivity in a metal results from the metal atoms having (1) high electronegativity (2) high ionization energy (3) highly mobile protons in the nucleus (4) highly mobile electrons in the valence shell