A barrel of water weighs 60 pounds. What must you put in it for it to weigh 40 pounds?

Calculate the solubility of cux (ksp=[cu2+][x2-]=1.27*10-36) in a solution that is 0.190 m in nacn.

Urgent! Describe how to use Le Chatelier's principle to predict the possible ways a chemical system can respond to changes.

What causes the arrows to move in this direction? Earth rotating air moving to the poles Earth's equator wind moving over short distances

Charcoal (burned wood) that was used to make prehistoric drawings on cave walls in france was scraped off and analyzed. the results were 8 mg-carbon-14 (parent isotope) and 56 mg hitrogen (daughter isotope). the half-life of carbon-14 is 5,730 years.

Which has triple Bond C2 H4 C3 H6 and C3 H4

What type of chemical process is used to create perfume?

Which of the following is a polyatomic ion? O A. HCI O B. Na O C. PO, O D. 52

What are the cations and anions for V2 (CO3) 3

If you were asked to convert 4.2 x 1022 atoms of aluminum to moles, which of the following should you use for the conversion?

Carbonic acid (H2CO3) does not dissortate 100 percent in water. What type of substance is it? weak acid Strong base strong acid weak base