It is not possible to find the age of a sample when just knowing activity of the sample and mass of the sample.
Answer:
Yes, a chemical change occurs.
Explanation:
CaSO4 is insoluble in the water, so a chemical reaction or chemical change occurs.
Acids have ph less than 7 and alkali have ph more than 7
Answer: This is the hue of mercury if you're looking for it. Mercury reacts with sulphur to generate a crimson hue. In the past, they always used a thermometer.
Explanation: However, due of its toxicity, individuals have switched to using alcohol in glass thermometers, which work similarly to mercury thermometers.
hope this helped best of luck mate! :) if this helped make sure to mark me Brainliest!
Ion knoe Wdym by “be able to describ’ so ima put it in my own words idr lol:)
if you talm bout some kentic energy or sum ok but other Dan dat ion knoe tbh
I can explain how transferring kinetic energy in and out of a substance can cause a change
