metal- a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity
non-metals- an element or substance that is not a metal.
metaloids- an element properties are intermediate between those of metals and solid nonmetals or semiconductors.
substance- a particular kind of matter with uniform properties.
physical properties- any property that is measurable, whose value describes a state of a physical system
luster- a gentle sheen or soft glow, especially that of a partly reflective surface.
conductivity- the degree to which a specified material conducts electricity, calculated as the ratio of the current density in the material to the electric field that causes the flow of current. It is the reciprocal of the resistivity.
Answer:
Always carry the microscope with two hands. One on the arm and one underneath the base of the microscope.
Answer:
substance
Explanation:
I think it is a substance
Answer is: 22,65 gramsof methanol <span>must be burned.
</span>Chemical reaction: CH₃OH + 3/2O₂ → CO₂ + 2H₂O. ΔH = -764 kJ.
Make proportion, if one mole of ethanol release 764 kJ of heat, than:
1 mol : 764 kJ = n(CH₃OH) : 541 kJ.
n(CH₃OH) = 0,708 mol.
m(CH₃OH) = n(CH₃OH) · M(CH₃OH).
m(CH₃OH) = 0,708 mol · 32 g/mol.
m(CH₃OH) = 22,65 g.
Answer:
The kinetic energy of the molecule is greater than the attractive force between them. The kinetic molecular theory may be used to explain the behavior of solids and liquids.
Hope this helps, please let me know If I'm wrong.