Five bean bags have a mass of 2.1 g. How many beans are in 0.454 kg of beans?

The product obtained by cracking an alkane X are methane ethene and propene. The mole fraction of ethene in the product is 0.5. What is the identity of X?

45.0g of Silver (0.23 J/goc) was mixed in a beaker with 18.0g of water (4.18 J/g°C) with an initial temperature of 22.0°C. The final temperature was found to be 51.0°C. What was the change in temperature of the silver?

What three things changed the plant molecules into coal molecules

Hf is a corrosive gas. at 2.0 atm and 300 k, hf occupies a 4.50 l volume. how many grams of hf are in the volume? 1. 7.3 g 2. 2.74 g 3. not enough information is given. 4. 0.573 g 5. 15.6 g 6. 4.82 g

Which of these best explains why water vapor has more energy than a block of ice? A) Molecules in a gas move faster than in a solid. B) Molecules in a gas move slower than in a solid. C) Molecules in a gas absorb more heat from their surroundings.

True or false forensic technicians receive OSHA data sheets regarding toxic chemicals they deal with in their lab.

What did robert boyle believe about atoms

Where do most carbon monoxide emissions come from?

The osmotic pressure exerted by a solution is equal to the molarity multiplied by the absolute temperature and the gas constant RSuppose the osmotic pressure of a certain solution is measured to be 22. atm at an absolute temperature of 353.

Which one of the following is a redox reaction?. 2 Na (g) + Cl2 (g) 2 NaCl (s) A. K2Cr2O7 (aq) + 2 KOH (aq) 2 K2CrO4 (aq) + H2O (l) B. H2O (l) H + (aq) + OH - (aq) C. Na2CO3 (s) + 2 HCl (aq) 2 NaCl (aq) + CO2 (g) + H2O (l) D.