Answer:
True
Explanation:
when a physical change occurs in a substance, the appearance might change but the chemical identity remains same. For example, if liquid water is heated, the water changes to gaseous form .This means the appearance of the water has changed, but the chemical identity remains same as both liquid water and steam has both oxygen and hydrogen as the component molecules or atoms.
Answer:
dispersion, dipole-dipole, and hydrogen bonding
Explanation:
The pictured compound is an amine. Amines have high boiling points. Amines have such high boiling points because they posses about three different kinds of intermolecular interactions, viz; hydrogen bonds, dispersion forces and dipole-dipole interactions.
The dipole interactions and hydrogen bonds arise from the fact that the N-H bond is polar. Also recall that a hydrogen bond is formed when hydrogen is bonded to an electronegative element. Hydrogen bonds lead to significant intermolecular association and high boiling points.
Hence the three kinds of intermolecular forces present in the pictured compound are; hydrogen bonding, dipole interactions and dispersion forces.
Answer:
i found this hope it helps
Explanation:
Matter is another word for the stuff things are made of. Everything around us is made of matter, from the air we breathe to the water we drink—even our own bodies. Planet Earth is made of matter, and so are all the stars, planets, and moons in the universe. All matter is made up of tiny particles called atoms.
Answer:
Yes.
Explanation:
"These starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products."
There is a beginning product, and a reactant is needed in order for something to happen.
For example, according to Newton, something cannot happen until an exterior force comes and stops/pushes it.
Sorry if this is incorrect, I am just 4th grade :(
Ideal gas law
Explanation:
The ideal gas law relates the temperature, pressure, volume and the number of moles of a gas under perfect conditions.
The ideal gas law is a combination of:
Boyle's law- "the volume of a fixed mass of gas varies inversely as the pressure changes if the temperature is constant"
Charles's law - "the volume of a fixed mass of a gas varies directly as its absolute temperature if the pressure is constant"
Avogadro's law - "equal volumes of all gases at the same temperature and pressure contains equal number of molecules".
The law gives:
PV = nRT
where:
P is the pressure of the gas
V is the volume of gas
n is the number of moles
T is the temperature
R is the gas constant
Learn more:
Ideal gas law problems brainly.com/question/13064292
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