A sample of mercury is heated from 25.5 °C to 52.5 °C. In the process, 3050J of heat

are absorbed. What mass of mercury was in the sample? The specific heat of mercury is 140 J/g °C.

20 ml of a 1.0 m hcl solution are added to 3.0 l of acid solution with a ph of 5.35. the ph of the mixture rises to 5.33 was the initial 3.0 l solution a buffered solution?

What does the heliocentric view of a solar system imply?

Which of the following is equivalent to the complex number i^28

The water in a carbonated drink is the A solute B soultion C solvent D mixture

16. How does an atom become an ion?

Which of the following is NOT true of nitrogen fixation? (A) it is a process that occurs exclusively in some species of prokaryotes (B) it sometimes occurs in bacteria that are mutualistic symbionts in plant roots (C) it is the metabolic process

What two pieces of information do u need to describe force

Why are the atomic masses for most elements not whole numbers?

An aqueous solution is 0.387 m in hcl. what is the molality of the solution if the density is 1.23 g/ml?

Carbon monoxide reacts with oxygen to form carbon dioxide. 2 CO (g) + O2 (g) → 2C02 (8) In a 1.00 L flask, 3.40 atm of CO reacts with 2.60 atm of O2. Assuming that the temperature remains constant, what is the final pressure in the flask? 4.30 atm 2.