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One of the reactions you observed resulted in these products: NaCl + H2O + CO2 (g)? What well did this reaction occur in? Describe how the observations for this reaction support your answer.
a rectangular block has dimensions 2.9 cm . 3.5 cm . 10.0 cm. the mass of the block is 615.0 g. what are the volume and
Calculate the root mean square speed of Br2 molecules at 23 degrees celsius and 40 degrees celsius and 1 atm pressure
Question- A sealed 260. mL bottle containing 248 mL of water (d20=1.000 g/mL) was placed in a freezer at -20 degrees celsius. When the water freezes (d20=0.9168 g/mL) will the bottle rupture. Illustrate all calculations and explain your answer.
imagine that you have an ideal gas in a 8.90 l container and that 1550 molecules of this gas collide with a square-inch
Write the balanced formula unit equation for the reaction of the complete combustion of pentane, C5H12. What is the sum of the coefficients
Calculate the concentration of HPO42- ions. (pKa‘s of phosphoric acid - 2.15; 7.2 ; 12.3).
what mass of sucrose should be combined with 537 of water to make a solution with an osmotic pressure of 8.55 at 275 ?
A 1.07 g sample of a Noble gas occupies a volume of 363 mL at 35°C and 678 mmHg. Identify the Noble gas in this sample? A) He B) Ne C) Ar D) Kr E) Xe
Bismuth oxide reacts with carbon to form bismuth metal: Bi2O3(s) + 3C(s) --> 2Bi(s) + 3CO(g)
Stretched rubber band Touch the relaxed rubber band briefly to your upper lip. Quickly stretch your rubber band and immediately touch the stretched rubber band to your upper lip again
Identify and describe the structure and function of specialised cells of protection, sensation and secretion in the integumentary system
a 35.0-ml sample of 0.20 m lioh is titrated with 0.25 m hcl. what is the ph of the solution after 23.0 ml of hcl have
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