Answer:
make contact with the heat source
Explanation:
Answer:
2.3 x 10-23 g.
Explanation:
The mass of a single atom is the mass number, 14, is the mass in grams of one mole of carbon.
One mole of Nitrogen atom is 6.022 x 1023 atoms (Avogadro's number). This can then used to convert a nitogen atom to grams by the ratio:
mass of 1 atom / 1 atom = mass of a mole of atoms / 6.022 x 10^23 atoms.
mass of 1 atom = mass of a mole of atoms / 6.022 x 1023
mass of 1 N atom = 14 / 6.022 x 10^23 N atoms
mass of 1 N atom = 2.325 x 10^-23 g
The mass of a single Nitrogen atom is 2.325 x 10-23 g.
Answer:
A chemical reaction that gives off heat is most likely to be exothermic.
Answer;
-3.0 mole at 25 °C
Explanation;
-Temperature is a measure of average kinetic energy. If the samples are at the same temperature, they have the same average kinetic energy.
-Kinetic energy is related to the temperature (temperature is a measure of kinetic energy). Therefore; the higher the temperature the more kinetic energy. Because water is at 25 Celsius then the LiCl would have to be at 25 Celsius to have the same kinetic energy.