What happens when elements combine to form compounds?

Question 5 1 pts All of the following is an example of a eukaryote except: dog human maple tree • E. Coli

What is the enthalpy change (in kJ) of a chemical reaction that raises the temperature of 250.0 ml of solution having a density of 1.25 g/ml by 7.80°C? (The specific heat of the solution is 3.74 joules/gramK.) A. - 7.43 kJ

Which layer of the earth has the most mass and volume? the upper mantle or the lower mantle?

What is bromine classified as?

An element is a substance that cannot be broken down chemically into A. electrons. B. another substance. C. atoms. D. protons

Select the correct answer. Which of these elements is rarely found in organic molecules? A. hydrogen B. oxygen C. barium D. carbon

Can a solution with undissolved solute be supersaturated

What family is the mineral lead in?

What is a greenhouse gas?

What symbol of xenon would be a part of the noble gas notation for the element?