Answer:
backward, opposite, retrograde
Explanation:
why, i just got it right when i put that.
<span>PE @ 0.5m = mgh = 4.41 J
KE @ 0.5m = 0.5mv^2 = 2.91 J
ME @ 0.5m = 4.41 + 2.91 = 7.32 J
7.32 J</span>
Answer:
=0.15M
Explanation:
To get the moles of the unknown LiOH, calculate the number of moles of HCl in 12.3mL.
Using the stoichiometric coefficient, mole ratio 1:1.
This means that the number of moles is the same. This number of moles is contained in 18mL. Then Calculate the molarity (concentration) which is in 1000mL
See the explanation from the image I have shared with you for calculations.
4 mole NH3 forms 6 moles of water, so 2 mole NH3 will form 3 moles of water
Heat lost = mcΔT, where m is the mass of iron , c is the specific heat capacity of iron, and ΔT is the change in temperature.
Mass of iron = 350 g, specific heat capacity = 0.450 J/gC while;
change in temperature = 54.1 - 22.4 = 31.7
Hence; heat = 350 × 0.450 × 31.7
= 4992.75 J or 4.993 kJ