Answer:
C
Explanation:
If the enthalpy change (i.e. Δ<em>H</em>) of a reaction is negative, then the reaction releases heat and is hence exothermic.
Hence, our answer is C.
Conversely, if Δ<em>H</em> is positive, the reaction absorbs heat and is endothermic.
Δ<em>H</em> tells us nothing about the speed of the reaction.
While Δ<em>H</em> influences free-energy change (Δ<em>G</em> = Δ<em>H</em> - <em>T</em>Δ<em>S</em>), we cannot predict the sign of Δ<em>G</em> given only Δ<em>H </em>(recall that a reaction is spontaneous if Δ<em>G</em> < 0).
You can demonstrate evaporation by wetting a sponge and letting it sit out
Answer:
Average acceleration = - 2 m/s^2
Explanation: Have a nice day
Answer:
Translucent objects allow some light to travel through them
Explanation:
Materials like frosted glass and some plastics are called translucent. When light strikes translucent materials, only some of the light passes through them
very quick like 4 beats per seconed
