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Questions in chemistry

[Done] Which of the following is a property of both gases and liquids?

[Done] Calculate the number of moles for each of the following: A. 3.15 g of HNO3 B. 19.3 g of NaCl C. 21.25 g of NaNO3

[Done] What is the alpha decay of Radon-198?

[Done] Calculate the number of moles for each of the following substances: 1. 3.16 g of KMnO₄ 2. 32.33 g of K₂CrO₄ 3. 100 g of KHCO₃

[Done] A chunk of silver has a heat capacity of 42.8 J/°C. If the silver has a mass of 181 g, calculate the specific heat of silver.

[Done] How many grams of [tex]NH_3[/tex] can be produced from the reaction of 28 g of [tex]N_2[/tex] and 25 g of [tex]H_2[/tex]?

[Done] What three things must happen in order for a chemical reaction to occur?

[Done] Which of the following statements does not describe a physical property of a piece of chalk? A. Chalk is solid. B. Chalk can be broken into pieces. C. Chalk is white. D. Chalk will bubble in vinegar.

[Done] What is the mass of 4.2 moles of sodium carbonate?

[Done] Calculate the number of moles in a 14.5 gram sample of [tex]C_4H_{10}[/tex].