False, as oceans can act as carbon sinks along with forests.
The second and first one but if it isn’t 2 choices then 1
The products of this reaction between aluminum and sulfuric acid are two: hydrogen and aluminum sulfate.
<h3>What are the products in a reaction?</h3>
This concept refers to the substances obtained at the end of the reaction.
<h3>What does it mean to balance an equation?</h3>
It means to make sure there are the same molecules in the reactants and products.
<h3>What are the products in this reaction?</h3>
- Al + H2SO4 = Al2 (SO4)3 + H2
- Al2 (SO4)3 = Aluminium sulfate
- H = Hydrogen
<h3>What is the balanced equation?</h3>
2Al + 3H2SO4 = Al2 (SO4)3 + 3H2
Learn more about chemical reaction in: brainly.com/question/3461108
Answer is: concentration ammonia is higher than concentration of ammonium ion.
Chemical reaction of ammonia in water: NH₃ + H₂O → NH₄⁺ + OH⁻.
Kb(NH₃) = 1,8·10⁻⁵.
c₀(NH₃) = 0,8 mol/L.
c(NH₄⁺) = c(OH⁻) = x.
c(NH₃) = 0,8 mol/L - x.
Kb = c(NH₄⁺) · c(OH⁻) / c(NH₃).
0,000018 = x² / 0,8 mol/L - x.
solve quadratic equation: x = c(NH₄⁺) = 3,79·10⁻³ mol/L.
Answer:
(3R,4R)-4-bromohexan-3-ol
Explanation:
In this case, we have reaction called <u>halohydrin formation</u>. This is a <u>markovnikov reaction</u> with <u>anti configuration</u>. Therefore the halogen in this case "Br" and the "OH" must have <u>different configurations</u>. Additionally, in this molecule both carbons have the <u>same substitution</u>, so the "OH" can go in any carbon.
Finally, in the product we will have <u>chiral carbons</u>, so we have to find the absolute configuration for each carbon. On carbon 3 we will have an "R" configuration on carbon 4 we will have also an "R" configuration. (See figure 1)
I hope it helps!
