Pure baking soda does not have a pH.
pH is the negative logarithm of the concentration of hydrogen ions in an aqueous solution (a solution where water is the solvent).
But if you have baking soda, or any alkaline substance, in a higher concentration (i.e. more dissolved in the same amount of water) the pH will be higher, if it is in a lower concentration, the pH will be lower.
Baking soda (Sodium bicarbonate) causes an exothermic reaction in the water which causes the water's temperature to lower. At the same time the baking soda dissolves in the water within a minute of putting the baking soda in the water.
Baking soda is a compound (has more than one element) and is not a solution or an element. If baking soda was added to water or another liquid, you would have a solution.
Yes, when water is added.
solvent: water solute: baking soda
Because it is in liquid.
sprinkle baking soda on them or try a water and baking soda solution
Solution of baking soda is basic.
solution, ........ but with a bit of particles in suspension,
A homogeneous solution is obtained.
A solution is a homogeneous mixture if one or more solutes completely dissolves in a solvent. Baking soda on it's own is not a solution, however it can be a solution in water.
hydroxide ions
it raises the temperature.