definition physical property can be observed or measured without changing the composition of matter
examples
color
density
volume
mass
definition
chemical A chemical property is a characteristic of a particular substance that can be observed in a chemical reaction. Some major chemical properties include flammability, toxicity, heat of combustion
examples flammability, toxicity, acidity, reactivity
pretty much the difference is is that chemical changes its chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties or composition, resulting in the formation of at least one new substance Physical change does not do that
Hey there!
This atom has 26 protons, which means it is an iron atom, or Fe.
26 + 32 = 58
Charge is difference between protons and electrons.
26 - 24 = 2 (+)
We have 58, Fe, and 2+.
That means our answer is D. ⁵⁸Fe²⁺.
Hope this helps!
Answer:
4.17L
Explanation:
V1 = 10L
V2 =?
P1 = 500torr
P2 = 1200torr
Boyle's law states that at constant temperature, the volume of a gas is inversely proportional to its pressure.
P1V1 = P2V2
V2 = ( P1 * V1 ) / P2
V2 = 4.17L
The new volume of the gas is 4.17L
Answer:
12.5
Explanation:
After three half-lives, one eighth (1/2 x 1/2 x 1/2) of the uranium-238 will remain. One-eighth equals 12.5%