Answer:
Beta rays are electrons.
Explanation:
A neutron in the nucleus of a radioactive atom decays into a proton and an electron, which is emitted from the atom.
Answer/Explanation:
Wave W is being diffracted, Wave X is being reflected, and waves Y and Z are being refracted.
An increase in pressure increasing the billing point is an example of a physical property.
- The term "boiling point" describes the temperature at which a liquid, which is being boiled, changes from a liquid to a vapor when its pressure equals that of its environment.
- Physical changes are those that take place when a material's structure is the same both before and after the change.
- When a substance is changed into another chemical substance, this is known as chemical transformation.
- When describing the state of a physical system, a substance's physical qualities are those that can be measured.
- A substance's characteristic that is seen in a chemical reaction is referred to as a chemical property.
As it demonstrates the physical state, the increase in pressure with boiling point is an example of a physical property.
Learn more about boiling point:
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The complete question is:
An increase in pressure increasing the boiling point of a liquid is an example of a —
A physical change
B chemical change
C physical property
D chemical property
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Answer:
62.586 gram
Explanation:
moles of Al(OH)3 = mass / molar mass = 35.1 / (27+17x3) = 0.45 mol
moles of H2SO4 = mass / molar mass = 53.94 / (2+32+16x4) = 0.55 mol
H2SO4 is the limiting reagent (reacts completely)
⇒ moles of Al2(SO4)3 is worked out by moles of H2SO4
moles of Al2(SO4)3 = moles of H2SO4 / 3 = 0.183 mol
mass of Al2(SO4)3 = mole x molar mass = 0.183 x (27x2 + 96x3) = 62.586 gram
Answer:
3. Negative Ion
a negative Ion has more electrons then protons and there are more electrons
hope this helped ^^
