A bus took a six hour trip and traveled 225 miles. The speed was 40 mph for the first part of the trip, and then decreased to 25 mph for the second...

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A bus took a six hour trip and traveled 225 miles. The speed was 40 mph for the first part of the trip, and then decreased to 25 mph for the second...

ocean currents that feed them across the Atlantic until they hit land where lack of fuel weakens them until they dissipate. true or false?

a) tan^2(theta)+cos^2(theta) b) 2tan(theta)cot(theta) c) 2cot^2(theta)-1 d) sec^2(theta)+csc^2(theta)

A 10.0 L reaction vessel captured oxygen gas, O2, and registered a pressure of 152 kPa at a temperature of 0 °C. Find the mass of the oxygen gas.

A water bottle label indicates a concentration of 2.5 ppm of nitrates. Find the mass, in grams, of the nitrates in the 500 mL bottle of water.

If the [H+] was found in a lab sample to be 1.0 x 10-4 mol/L then calculate the pH and what pH of NaOH of equal volume and concentrate neutralize the acid?

A sodium hydroxide solution of 0.1 mol/L concentration needs to be prepared from a 2.0 mol/L solution. What volume of the concentrated solution should you use to prepare 500 mL of the diluted solution...

how to Calculate the molar concentration of sodium ions when 100 mL of 0.2 mol/L sodium sulphate, Na2SO4, solution is mixed with 400 mL of 0.50 mol/L of sodium nitrate, NaNO3....

The number of females that achieved a first degree in 1980 was 25,319, in the UK. Over the next ten years this number increased by 33.76%. How many females achieved a first degree in 1990?

The answer keys says the answer is 2,300. I am not getting that. Help!!

Aluminum reacts with iron (II) oxide to produce aluminum oxide and iron. Find the percentage yield of iron if 85.0 g of iron (II) oxide reacts with 35.0 g of aluminum metal and 65 g of iron are produced...

When 27.98 g of hydrated tin (II) chloride was heated up, 18.97 g of the anhydrous salt was left. how do you Determine the formula of the hydrated salt.

This is a question from my math class but I don't get how to solve it and am hoping someone can help!!

how would you Explain the opposing trends of ionization energies and atomic radii in the alkali group of the periodic table.

Hello, I have a dispute over the proper use of the English language, and am hoping you can help. Before I ask, it might help to give a little background. Each year about 15 guys get together for a...

what is the Comparoson and contrast the formation of bonds, lattice structure, electron distribution and physical properties between ionic and molecular compounds by using sodium chloride and water...

Show the balanced net ionic equation and list spectator ions when a solution of potassium iodide and lead (II) nitrate react to produce a precipitate of lead (II) iodide suspended in a solution of...

nine more than thrice a smaller number is twice the bigger number is 26 more than twice the smaller number.then what are the numbers?(write the smallest number before the bigger number

Patrick brought notebook and pens for her daughters, he brought 8 notebooks and 3 pens for isha and spent 365pesos .for any he brought 3 notebooks and 2 pens and spent 150 pesos.How much the notebook...

Ayan practices the violin at least 12 hours per week. She practices for three fourths of an hour each session. If Ayan has already practiced 3 hours in one week, how many sessions remain to meet or...