Rate, fast :Maybe these are the answers.
Answer:
Because the gravitational force alters
Explanation:
They come up with a hypothesis (question to investigate), then they work out what variables and what they will be measuring, keeping the same and changing in the experiment
Answer:
Answer is option (d) (lowest to highest)
We have to rank the six vehicles according to the CO2 emission causing an impact on global warming. We know that burning of coal has the highest emission of all fossil fuel so EV powered by electricity from it will be the highest impact on global warming with highest CO2 emission, next is burning of gasoline, but the CO2 emission can be varied by the process of the burning in engines obviously a high-efficiency burning will have less impact than a regular standard engine. So, after ICEV standard will have high CO2 emission than the ICEV (high efficiency), now the next will be EV which is having its electricity supplied by a mix of resources, the production involves both fossil and non-fossil fuel which make this vehicle more environmentally friendly than the full fossil fuel-based. The ICEV with less driving has the second least emission because you are not burning the fuel like other vehicles because of not driving the vehicle. In the last will be the EV having powered by electricity of wind it will be the least emission almost zero because it using wind power to generate electricity. Hence arrangement comes like this, EV(wind), ICEV(less driving), EV (mix of sources), ICEV (high-efficiency), standard ICEV, EV (coal) from lowest to highest CO2 emission.
The moles of Al that are needed to react completely with 17 .5 moles of FeO is 11.67 moles
<u><em>calculation</em></u>
2Al +3 FeO → 3 Fe + Al₂O₃
The moles of Al is calculate using the mole ratio
That is; From equation above the mole ratio of Al :FeO is 2:3 therefore the moles of Al
= 17.5 moles x 2/3 = 11.67 moles
