A Thermochemical Equation is a balanced stoichiometric chemical equation that includes the enthalpy change, ΔH. In variable form, a thermochemical equation would look like this:
A + B → CΔH = (±) #
Where {A, B, C} are the usual agents of a chemical equation with coefficients and “(±) #” is a positive or negative numerical value, usually with units of kJ.
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Answer:
C
Explanation:
okay, you need to look at the structures of the particles of matter in the solid, liquid and gas.
- particles in a solid are in fixed positions, where they can only vibrate in those positions ( take a look at ice, or rather, a brick)
- liquids have very small or rather, no spaces between them, but they can slide or rub against each other, like people in a <em>really tight</em> crowd I guess
- gas particles have very large spaces between them and they move randomly. these exibit what's called brownian motion.
- since water particles (and all other liquid particles) have negligible spacings and limited movement, that allows the dye particles to move from a region of high concentration to that of a low concentration. the aim for this is for the mixture/solution to reach an equilibrium, that is the mixture must get to a point where all regions have the same concentration of the dye.
you can refer to your coursebooks :)
correct where wrong please:)
Answer:
I'm not really sure how to answer it but this is the best I can do:
If the capacity of a mass is 1350 and heat is transferred to increase the temperature by 15. degrees Celcius then the amount of heat that needs to be transferred would be about 45 degrees.
Explanation:
I'm sorry if it's wrong or not exactly the way it's supposed to be answered, I'm not very good with math and temperature problems. But i hope it helps! :)
<u>Answer:</u> Enzymes enhances the rate in the same order.
<u>Explanation:</u>
Catalyzed reactions are defined as the reactions in which a catalyst is used.
A catalyst is a substance which increases the rate of the reaction and does not participate in the reaction. It can be recovered at the end of the reaction. It decreases the activation energy of the reaction.
The rate of catalyzed reactions is always greater than the rate of uncatalyzed reactions.
Enzymes are the natural catalysts which are present in the animal body to increase the rate of some reactions.
Thus, they enhance the rate of both slow and fast uncatalyzed reaction at the same rate.
Since the pH is a logarithmic scale each increase and or decrease in H+ concentration, changes the pH by 10 fold or 10x the amount. In this case stomach acid is 10x more acidic than lemon juice.