Sugar Heat The sugar is in tiny white debris in a pile. warmth is not seen but is implied through the heat source. The pile of sugar in the pot has a mass of one hundred grams. there may be a stable, light brown mass at the lowest of the pot. It has a mass of 100 grams.
The mass of the sugar is the same in melted form as it is in strong crystal form. there has no longer a chemical response. Sugar did not trade composition. It most effectively melted. Melting point is a physical property, and this is bodily change. metallic Wool Oxygen fireplace The metal wool has a silky look and it is rolled up and has a mass of 6 grams.
The oxygen is not visible however it's far internal of an oxygen tank which has a mass of 1 gram. there's brown mustard color sand in a pile and has a mass of seven grams. The mass of the steel wool turned into blended with the mass of the oxygen tank and that became the same seven grams. there has been a chemical reaction. The metallic wool blended with the oxygen of the tank creates a brand new substance known as iron oxide. Egg heat The egg is vicinity on a flat floor and has its shell on. The egg has a mass of forty-five grams. the heat isn't visible however is implied with the aid of the heat supply of the kitchen. The egg is cooked and it's far cut loose from the shell. It has a mass of 45 grams the cooked egg 40 grams and the shell five grams.
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Answer:
all top 3
Explanation:
because they make the most sense.
C.silver
nacl is a compound of na and cl
h2o is a compound of 2h and o
electron is a particle in an atom
Answer:
Explanation:
THE CORECT QUESTION
A 50.0 mL solution of 0.127 M KOH is titrated with 0.254 M HCl. Calculate the pH of the solution after the addition of each of the given amounts of HCl.
SOLUTION
Get the concentration of the HCl first using titration formula
CA X V A / CB VB = NA/ NB
Equation of reation; KOH + HCl => KCl + H2O
CA = 0.254 M
CB = 0.127
VA = 1/0.254 = 3.937
CA (after the addition) = 0.127 x 50 / 3.937
= 1.612 M
But pH = - Log[hydrogen ion]
= -log 1.612
=
Air is it gas so it fills its container, the balloon, completely.