It means that energy content of one system increased, while the energy content of second system decreased. The total energy (sum of energies in a CLOSED system) is constant. Examples of energy transfer are heat, work and mass transfer.
D). A warm air mass is in contact with a cold air mass. i hope its right PLEASE MARK ME BRAINLEST
Answer:
Van't Hoff factor is 2, in the sodium chloride
Explanation:
Let's raise the dissociations
- Ca₃(PO₄)₂ → 3Ca²⁺ + 2PO₄⁻³
We have 5 moles of ions
We have 4 moles of ions
We have 3 moles of ions
We have 2 moles of ions
Answer:
I. Scientific explanations should be based on evidence or data. III. Scientific explanations must have logical and consistent arguments. IV. Scientific explanations should use scientific principles, models, and theories.
Explanation:
Hypothesis is a proposed explanation for a certain phenomena and it is open for further scientific inquiry. There is no compulsion in science to prove that a given hypothesis is true. In science hypothesis are made, experiments are conducted, observations and data are recorded, data are analyzed and conclusion is reached where a hypothesis is either proven either right or wrong.
If these are the options 1.H2, 2.CH4, 3.CH3OH, 4.NH4CI. Then the anwer is 4.NH4CI
