Answer:
Explanation:
The first diagram (by the left) is an endothermic reaction. In this reaction, the products are higher in energy than the reactants. Heat/Energy is absorbed in this reaction and enthalpy is positive. In second diagram (by the right) is an exothermic reaction. In this reaction, the reactants are higher in energy than the products. In this reaction, heat/energy is released.
Answer:
Explanation:
Equal to the sum of the densities of both substances
Equal to the sum of the densities of both substances
Equal to the difference in the densities of both substances
Equal to the difference in the densities of both substances
of which I cannot predict anything about its value
of which I cannot predict anything about its value
of an intermediate value to both substances which will depend on which substance is in greater quantity
of an intermediate value to both substances which will depend on which substance is in greater quantity
Answer with Explanation:
One hypothesis above would probably rely on the situation called <em>"inelastic collision." </em>The two carts are travelling towards each other at different speed. So, this means that once they collide, the kinetic energy will not be conserved but will be transferred as <em>sound energy, thermal energy or material deformation</em>. The impact will be great, thus a <u>greater fraction of kinetic energy will be lost from the system.</u>
The correct answer is a. Measures hydroxide ion concentration (strength of the acid or base) because when you look at the scientific definition of the use of a PH scale it says... "Acidity is the amount of hydrogen protons present in a solution and basicity is the amount of hydroxide ions present in a solution. The pH scale measures how acidic or basic a substance is. It ranges from 0 to 14. A pH of 7 is neutral."
A graph of linear motion has no section that repeats. It may go
up and down, and different parts of the graph may have different
slopes, but there isn't any obvious consistent repetition.
A graph of harmonic motion has a single section that repeats
endlessly all across the graph.
