If cobalt metal is mixed with excess sulfur and heated strongly, a sulfide is

produced that contains 55.06% cobalt by mass. Calculate the empirical

formula of the sulfide.

Receiving an electrical shock when you forget to turn off the power before working on an electrical socket is an example of a negative punishment. T/F

1. Which of these is a physical property of wood? A. Wood can burn. B. Wood can rot. C. Wood does not rust. D. Wood is softer than coal.

In the molecule Br2, how many bonds would be present between the two atoms of Br A-single B-triple C-double

The first movement of Vivaldi's "spring" has recurring theme called

The initial temperature of a 1.00 liter sample of argon is 20 Celsius. The pressure is decreased from 720 mm Hg to 360 mm Hg and the volume increases to 2.14 liters. What is the final temperature of the argon?

There is a large increase in ionization energy between the second and the third ionization energies of a metal. What kind of ion is the metal likely to form? Include the charge in your answer.

Which of the following are true statements about equilibrium systems? For the following reaction at equilibrium: CaCO3 (s) ⇌ CaO (s) + CO2 (g) adding more CaCO3 will shift the equilibrium to the right.

How many sulfide ions are present in 23.5g of Sb2S3

2. An automobile tire has a pressure of 210 kPa at 293 K. What will be the tire pressure after driving, if the tire temperature rises to 308 K?

Students measuring the mass of a rock record 6.759 g, 6.786 g, 6.812 g, and 6.779 g. Which other measurement of the block's mass would be most precise? A. 6.702 g B. 6.781 g C. 6.605 g D. 6.858 g