*The of the substance does not increase or decrease during chemical reactions.* 1️⃣ volume
2️⃣ weight
3️⃣ mass
4️⃣ colour

Concerning the 10.0 ml of 0.50 m nacl to 100 ml of solution: when a solution is diluted, does it change the number of moles dissolved?

24. a sports ball is inflated to an internal pressure of 1.85 atm at room temperature (25 °c). if the ball is then played with outside where the temperature is 7.5 °c, what will be the new pressure of the ball? assume the ball does not change in volume nor does any air leak from the ball a) 0.555 atm b) 1.74 atm c) 1.85 atm d) 1.97 atm

One does not belong why? ice, gold ,wood ,diamond and table salt