# Posts by Kalen

Total # Posts: 19

physical science
Luster Malleable Ductile Conductor Solid at room temperature Which element could be described by the list of properties above?

What is needed to repay the loan at the of month of an 18 month installment loan for \$1700 at 12% annual interest? Interest is computed using the Rule of 78.

trig
write y=sinx-cosx in the form y=ksin (x+a), where the measure of a is in radians. answers: sqrt2sin (x+3pi/4), sqrt2sin (x+5pi/4), sqrt2sin (x+pi/4), or sqrt2sin (x+7pi/4) ...?

trig
write sin4xcos2 as the sum or difference of two functions. answers: 1/2(cos6x+cos2x), 1/2(cos2x-cos6x), 1/2(sin6x+sin2x), sin6x-sin2x

Chemistry
Consider the following chemical equation. SO2(g) + O2(g) → SO3(g) What volume of sulfur dioxide gas reacts with 37.5 L of O2? The reaction conditions are 875°C and 1.00 atm pressure.

Chemistry
Consider the following chemical equation. Cl2(g) + O2(g) → Cl2O3(g) Assuming all gases are at the same temperature and pressure, how many milliliters of oxygen gas must react to give 3.50 L of Cl2O3?

Chemistry
Consider the following chemical equation. H2(g) + I2(g) → HI(g) Assuming all gases are at the same temperature and pressure, how many milliliters of hydrogen iodide are produced from 825 mL of H2?

Chemistry
Consider the following chemical equation. MnCl2(s) + H2SO4(aq) → MnSO4(aq) + 2 HCl(g) How many grams of manganese(II) chloride must react with sulfuric acid to release 50.0 mL of hydrogen chloride at STP?

Chemistry
Consider the following chemical equation: HgO(s) → Hg(l) + O2(g) How many milliliters of oxygen gas at STP are released from the decomposition of 3.00 g of mercuric oxide?

Chemistry
Given the balanced equation, how many milliliters of oxygen gas at STP are released from the decomposition of 5.05 g of calcium chlorate?

Chemistry
if 30.0 grams of molten iron (III) oxide reacts with 275 grams of aluminum, what is the mass of the iron produced.

physics
A popular pastime is to see who can push an object closest to the edge of a table without its going off. You push the 100 g object and release it 2.90 from the table edge. Unfortunately, you push a little too hard. The object slides across, sails off the edge, falls 1.50 to ...

physics
In the total tension, what does &radic mean? Total Tension, T = &radic(T²+(mg)^2) The angle tan-1(mg/Tc) is the angle with the horizotal

physics
We are learning about circular motion, uniform and non uniform. how do you find tension in a string, when the string is attached to a object with mass m and length r? What about if you are swinging it around in a horizontal circle and the string makes a angle theata with the ...

physics
Would the force of the 4kg block acting on the 1kg block be the mass=4kg+6kg times the acceleration =50/11?

physics
Blocks with masses of 1kg , 4kg , and 6kg are lined up in a row on a frictionless table. All three are pushed forward by a 50N force applied to the 1kg block. How much force does the 4kg block exert on the 6kg block? How much force does the 4kg block exert on the 1kg block?

physics
A chandelier with mass m is attached to the ceiling of a large concert hall by two cables. Because the ceiling is covered with intricate architectural decorations the workers who hung the chandelier couldn't attach the cables to the ceiling directly above the chandelier. ...

chemistry
What is the sign of the entropy change in eaech chemical reaction? a) N2O4(g)--> 2NO2(g) b) PCl3(g) + Cl2(g) --> PCl5(g) c) 2 Al(s) + 3/2 O2(g) --> Al2O3(s) d)N2(g) + 3H2(g) --> 2 NH3(g) e) S(s) + O2(g) --> SO2(g)

chemistry
What am I doing wrong? Estimate the normal boiling point of liquid mercury Hg(l) <--> Hg(g) Hf 0.0 61.4 S 75.9 174.97 DH = 61.4 kJ DS = .09907 T = DH/DS = 619.76 - 273 = 346. 76 degrees celsius

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