List any two use of coal.

What is the r. a. m. value of krypton (Kr) ? A. 36 amu B. 1/36 amu C. 84 amu D. 1/84 amu

Consider four identical 1.0-L flasks containing the following gases each at 0°C and 1 atm pressure. Which sample has the most molecules? Multiple Choice SO2 H2 O2 same for all gases NH3

Sodium easily combines with chlorine to make salt is it A) compressibility B) heat of combustion or C) reactivity

For the complete combustion of 1.000 mole of methane gas at 298 K and 1 atm pressure, ΔH° = - 890.4 kJ/mol. What will be the amount of heat released when 1.97 g of methane is combusted under these conditions?

Summarize the three main acid and base theories of bronsted lowry

A patient needs 0.024 g of a sulfa drug. There are 6-mg tablets in stock. How many tablets should be given? Express your answer as an integer.

What does the periodic table displays

Consider the reaction: 2A (g) + B (g) →3C (g). When A is decreasing at a rate of 0.200 M⋅s-1, how fast is B decreasing?

2.70 feet is the same as how many cm?

Which two body systems contribute to acid-base balance of blood?