Curry

if 250 ml of oxygen at stp are consumed when magnesium burns, how many grams of magnesium oxide? [Mg(s) + O2(g) ---> MgO(s)]

The length of a rectangle is 2ft less than 3 times the width. If the area is 65 ft. Find the dimension

1.The reaction of nickel (II) chloride solid with sodium hydroxide aqueous solution occurs according to the balanced reaction equation given below. NiCl2 (s) + 2 NaOH(aq) → Ni(OH)2(s) + 2 NaCl(aq) If 28.37 g of solid NiCl2 are mixed with 400. mL of 1.85 M...

Help me out because I attempted these and realized I did not solve them in Kj/Moles. How do you figure out change of enthalpy with the units kJ/moles? My two reactions. First balanced: MgO (s) + 2 HCl (aq) --> MgCl2 (aq) + H2O (l) Second balanced: Mg (s)...

Hypothesis 2, including explanation, for reactivity trend down a column: Metal reactivity will increase as you go down a group, because the nuclear shielding increases and causes the nucleus’ hold on the valence electron to weaken, therefore it is easier...

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School is a necessary evil. If used to one's advantage can be powerful.

So, v= d/t/ d= (343 m/s) (1.5 s) = 228.6 m

No, the opposite actually. Ancestral Pueblo people abandoned their communities by about AD 1300, the time that marks the beginning of the fourth Pueblo period. It is believed that a convergence of cultural and environmental factors caused this to occur. T...

All of the above.

This clause addresses the duties that states within the United States have to respect the "public acts, records, and judicial proceedings of every other state".

So, We have a balanced equation of: Zn + 2HCL --> ZnCl2 + 2H Zn is the limiting reactant. g ZnCl2 = (12.5 g Zn) (1 mole Zn/65.39g) (1 mole ZnCl2/1 mole Zn) (136.29 g ZnCl2 /1 mol) = 26.05 or 26.1 grams, rounded to one sig fig.

C. Newton's law of universal gravitation states that a particle attracts every other particle in the universe using a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

I'm sorry. I'm quite confused too. Where are you getting 8.39? I have no idea what is going on anymore. This lab got too convoluted for my taste. No worries, thanks for your help anyways.