Answer:
0.159 \%
Explanation:
The acid will dissociate according to the reaction shown below:-

Given that, pH=3.8
The concentration of can be determined from the expression fo pH as:-
pH = - log ![[H^+]](https://tex.z-dn.net/?f=%5BH%5E%2B%5D)
3.8 = - log ![[H^+]](https://tex.z-dn.net/?f=%5BH%5E%2B%5D)
= 
The initial concentration of RCOOH was 0.10 M, then the percent dissociation was- calculated as shown below:-

Answer:
2.35 x 10²⁰ atoms Ga
Explanation:
After converting from mg to g, use the molar mass as the unit converter to convert to moles. Then using Avogadro's number, 6.022 x 10²³ convert from moles to atoms of Ga.

Then round to 3 significant figures = 2.35 x 10²⁰ atoms Ga.
Answer:
1 - producer, 2 - primary consumer, 3 - secondary consumer, 4 - tertiary consumer
Explanation:
Sometimes, the types of the contaminents might have a slight or major effect on the concentration of your tirant and the reaction that takes place in your sample or multiple samples. The second and somewhat more important<span> reason for cleaning your </span>burette<span> has to </span>do<span> with water. When </span>you<span>'re </span>cleaning<span> your glassware, it is recommended to use water</span><span> to rinse it off.</span>
The unknown mineral is gold because of the similar properties of gold to that unknown mineral.
<h3>What is unknown mineral?</h3>
The unknown mineral is Gold because it has similar properties to the gold. Gold has density of 19.3 grams per cubic centimeter which is same to this unknown mineral. The hardness and mass of the mineral are also similar to the Gold.
So we can conclude that the unknown mineral is gold because of the similar properties of gold to that unknown mineral.
Learn more about mineral here: brainly.com/question/15844293
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