An atom of chlorine has several valence electrons in its third shell, second shell, first shell, or nucleus?

What do an atom ion and isotope have in common?

At 10⁻¹⁰ s during the evolution of the universe, formed, which are elementary particles that make up protons and neutrons?

How much heat was absorbed or lost by the surroundings? use 4.184 j/goc for the specific heat of the solution. put your answer in units of kj and make sure the sign is correct?

The Earth's systems are all interdependent, which means that A. each system has no influence on the other systems. B. one system can overpower the other systems, causing damage to the Earth. C. each system works by itself to benefit the Earth. D.

What is the reaction of fec2o4+kmno4

A sample of argon gas is at a pressure of 1.725x10^4 kPa and a temperature of 24°C in a rigid 20 L tank. How many moles of argon does this tank contain? (show your work)

summarize what you read on the two articles by identifying the advantages and disadvantages of using plastics

What happens chemically when quick lime is added to water?

What was the crop that led to the success of Jamestown? A) cotton B) sugar cane C) tobacco D) indigo

The currents of the Earth's oceans are caused by A. marine organisms and volcanic eruptions. B. disturbances by submarines and large ships. C. waves and earthquakes along tectonic plate boundaries. D.