Answer:
Friction occurs because no surface is perfectly smooth. Rougher surfaces have more friction between them. Heavier objects also have more friction because they press together with greater force. Friction produces heat because it causes the molecules on rubbing surfaces to move faster and have more energy.
Explanation:
Answer:
Friction occurs because no surface is perfectly smooth. Rougher surfaces have more friction between them.
Explanation:
An addition of acid increases the solubility of calcium phosphate because the hydrogen ions can easily dissociate and form salts. And example is from the reaction 3H2SO4 + Ca3(PO4)2 → 2H3PO4 + 3CaSO4. CaSO4 is the salt of sulfuric acid and calcium phosphate.
(2) The mass of an electron is greater than the mass of a neutron.
(3) The mass of a proton is greater than the mass of an electron.
(4) The mass of a proton is greater than the mass of a neutron.
atoms are made of 3 types of subatomic particles - electrons, protons and neutrons
mass of proton is 1 atomic mass unit and proton is also 1 atomic mass unit
masses of protons and neutrons are very similar
mass of an electron is 1/1840th of 1 atomic mass unit
mass of electron is insignificant when compared to masses of neutrons and protons
protons and neutrons have a larger mass than electrons
from the given options correct answer is
(3) The mass of a proton is greater than the mass of an electron
Answer:
Molecular Crystal
Explanation:
Hope this helps!
b. False
Answer:
A radical is a group of atoms that remains bonded together and behaves as a single atom in a chemical reaction. True (a.)
The balanced equation is C6H14(g) + 19/2O2(g) → 6CO2(g) + 7H2O(g). If you are given 7.9 moles C6H14, multiply it by a ratio of 19/2/1 to get the moles of oxygen. Then, you will get 75.05 moles of O2.