RacconEggs:
@justsaiyan
RacconEggs:
Hydrogen fuel cells that operate at lower temperatures use more expensive platinum electrode catalysts. What helps to make up for the higher-cost electrodes? They use a cheaper fuel. They operate at a higher efficiency. They use a reaction that is not redox. They produce fewer emissions. @JustSaiyan
JustSaiyan:
Well, if they operate at lower temperatures, that means they will operate at a higher efficiency. The higher the temperature of an electronic, the faster the batteries will be depleted, that's why computers require a fan, as well as to prevent the overheat damaging the hardware.
RacconEggs:
b?
JustSaiyan:
Yes. B.
RacconEggs:
An unbalanced chemical equation for the reaction of boron fluoride with lithium sulfite is shown below. BF3 + Li2SO3 >> B2(SO3)3 + LiF What is the coefficient of lithium fluoride in the balanced chemical reaction? 1 3 4 6
RacconEggs:
im really bad at the Element type stuff
RacconEggs:
theres Tranq
JustSaiyan:
6 would be the coefficient. The easiest way to solve this is to check the equation itself. On product side, there are 2b, 6F, and 6LI on both the reactant and product sides, as well a 3S03. This means there are 6LIF in the equation, so it would look like this BF3 + Li2SO3 ---> B2(SO3)3 + 6LiF.
JustSaiyan:
Yes, he is judging my answers and my ability to not spoon feed users with direct answers.
RacconEggs:
yea ik hes gone now
JustSaiyan:
Yep.
RacconEggs:
he will probably be back
JustSaiyan:
Definitely.
RacconEggs:
What is the quantity of charge that passes through a conductor when there is a current of 0.25 A for 10 minutes? @JustSaiyan
JustSaiyan:
150C
RacconEggs:
Which color of white light bends the least when it is refracted by a prism? blue yellow green violet I think blue
JustSaiyan:
yes that would be correct. Violet would be the most.
RacconEggs:
Under which condition is no work done? A force pushes an object and slows it down. A force pulls an object and speeds it up. A force pulls down on an object that moves downward. A force pushes up on an object that stays in place.
JustSaiyan:
D. This would mean the object was too heavy/large to be moved, in which the force pushing is just wasting its time.
RacconEggs:
Which feature of a wave can be calculated using the formula below? number of wavelengths / time wavelength speed frequency amplitude
JustSaiyan:
Wavelength.
RacconEggs:
Packet is finished
RacconEggs:
50 question packet complete
JustSaiyan:
Nice. How'd we do?
RacconEggs:
88%
RacconEggs:
awesome
RacconEggs:
thursday is the final exam on computer
RacconEggs:
im finishing this class early so i can come to school later
RacconEggs:
in like 20 minutes i get my phone back ill add u and send u a discord link if u want
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