Two substances a and b, initially at different temperatures, are thermally isolated from their surroundings and allowed to come into thermal contact. the mass of substance a is twice the mass of substance b, but the specific heat capacity of substance b is four times the specific heat capacity of substance a. which substance will undergo a larger change in temperature?

B

Explanation:

For solving this we need a heat balance

By changing the corresponding relations, we have

By cancelling similar factor, we obtain

Which means that the change of temperature in A is twice the change of B

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