Oxygen has a density of 1.43 g/l at stp. what is the density of oxygen at 1.30 atm?

Which statement regarding the second law of thermodynamics is true? A. Heat can transfer from a cold to a hot body without converting a certain amount of work to heat energy. B.

A 50.0 g sample of an unknown metal at 100.0∘C is placed in 500. g of water at 25.00∘C. The final temperature of the system is 27.40∘C. What is the specific heat of the metal in joules per gram degree Celsius?

Why are chemical reactions often carried out using solutions? The heterogenous nature of solutions prevents the reactants from freely mixing. The amount of each reactant can be controlled by adjusting the volume of each solution that is used.

Describe step by step how we can make a field of a variable quantity?

If 4.04 g of N combine with 11.46 g O to produce a compound with a formula mass of 108.0 amu, what isn't the molecular formula of this compound?

Diseases that are inherited are caused by

Why do many metal ions produce acidic solutions when dissolved in water?

Which property of potential energy distinguishes it from kinetic energy? a. mass b. position c. force d. work and power

A sample of pure copper has a mass of 5 grams calculate its volume

Which statement best explains why carbon is present in so many kinds of molecules? Question 1 options: It is abundant on earth, so it is readily available to bond with other elements. It does not form strong bonds, so it breaks apart.