Analyze the graph to describe the solubility of barium nitrate, BaNO3. At 60°C, must be added to 1 L of water to make a saturated solution. At 25°C, the solubility is about . A solution that contains 600 g BaNO3 in 3 L of H2O at 70°C is . For a solution that contains 300 g BaNO3 in 3 L of H2O at 60°C to become saturated, g solute must be added.

200 g, 100 g per liter, unsaturated, 300

Explanation:

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.