Answer:
The correct answer is Choice C.
(Phenol red indicator.)
Explanation:
Phenol red indicator is an organic dye that acts as an acid-base reaction indicator in the pH range of 6.8 to 8.4.
In acidic solutions, the color is purple, and in simple solutions, the color is red.
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Answer:
The volume of the gas is fixed and will not change.
Explanation:
The volume of the gas will not change because there is no change in temperature. Temperature increases the volume of gases enclosed in a container.
Answer:
Explanation:
There are empirical formula calculators on the search engine that starts with G (This word is blocked by Brainly) and if you really need to use it, there's an option you can choose. However, I will try to explain this.
C = 65.4
H = 5.5
O = 29.1
We first need to divide the percentages by their molar mass.
65.4/12.01 = 5.44
5.5/1.008 = 5.46
29.1/16 = 1.8
We then need to divide these numbers by the smallest number we obtained.
1.8 is smaller than 5.46 and 5.46, so we would divide all three numbers with 1.8.
5.44/1.8 = 3
5.46/1.8 = 3
1.8/1.8 = 1
This means that there are 3 atoms of C and H and 1 atom of O, giving us the empirical formula of .
The physical properties used by scientists to describe all matter, sight, smell, taste, color, texture, mass, weight, volume, and density.
Answer:
Δ
O
Explanation:
a) 1st picture for homogenous mixture
b) 2nd picture represents atomic view of compound AB in liquids
c) 3rd one represents when the compound undergoes evaporation
d) 4th one is an atomic view of compound AB when it goes through decomposition
same as a