A mixture was found to contain 3.50 g of sugar, 4.80 g of NaCl, and 7.20 g of sand. What is the percentage of sand?

Which of these is a compound? A. salad B. carbon dioxide C. potassium D. salt water

If I a reaction occurs when a piece of metal is placed in a solution what can you conclude about the solution

The atomic number of nickel-60 is 28. How many neutrons does this isotope have?

What are the rules of counting significant numbers?

Geetha took some grains of boiled rice in test tube A and Tina took boiled and chewed rice in test tube B. Both of then poured 1-2 drops of iodine solution into the test tubes. What would they have observed? Give a reason for your answer.

Calculate how to prepare 250.00 ml of approximately 1.0 m hcl solution from the 2.5 m hcl solution. show your work.

If the volume of 0.100M HCl delivered to 10.0mL of NaOH is 12.0mL the NaOH concentration is

The mass of 126c is exactly 12 u. what is the total binding energy of this nucleus?

A reaction is in equilibrium as shown: a + b c + d. calculate the equilibrium constant if the final concentrations stabilize at: a = 9.60 m b = 10.0 m c = 4.00 m d = 4.00 m 0.167 0.408 2.45 5.99

When 10 liters of a gas at 1 atm is compressed to 3 liters at constant temperature, what property of the gas changes?