Answer:
Anything that shares electrons.
Explanation: This means they don't transfer electrons.
Molecule
The smallest unit in a compound is its molecule.
What do I possibly answer here?
ask a full question pls!
Phenolphthalein turn pink in basic solutions.it turn colourless in acid solution.
Hence options(1)is correct
You can put a known amount sodium into some sort of time release mechanism such as a pill made from soluble material. Then you can place the sodium into a calorimeter with a known mass of water and record the temperature change the water undergoes during the reaction. Then you can use the equation q(water)=m(water)c(water)ΔT to find the amount of heat absorbed by the water. since the amount of heat absorbed by the water is the amount of heat released from the sodium, q(sodium)=-q(water). Than you can use the equation q(sodium)=m(sodium)c(sodium)ΔT and solve for c(sodium)
I hope this helps and feel free to ask about anything that was unclear in the comments.
