The matter is solid, a liquid or a gas would change shape to match the jar.
Metals. Titanium is very hard, gold is shiny, and copper is ductile(can be pulled into a wire without breaking). <span />
Answer:
1) Increasing the concentration of HCl [HCl] will increase the reaction rate.
2) The potential energy diagram is shown in the attached image.
3) Because of it is an irreversible reaction that goes to the forward direction . The reaction takes place till HCl dissolves Zn completely.
Explanation:
<em>Q1: State one change in reaction conditions, other than adding catalyst, that will increase the rate of the reaction.</em>
- The rate of the reaction, dissolving Zn in HCl, depends on the concentration of HCl.
Rate = k[HCl]².
<em>Rate ∝ [HCl]².</em>
- The rate is directly proportional to the concentration of HCl raised to the power 2,
<em>So, increasing the concentration of HCl [HCl] will increase the reaction rate.</em>
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<em>Q2: Draw a potential energy diagram for this reaction.</em>
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- Since the reaction releases energy that appears in the products side. So, the reaction is an exothermic reaction.
In an exothermic reaction, the energy of the reactants is higher than that of the products.
<em>The potential energy diagram is shown in the attached image.</em>
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<em>Q3: Explain why this reaction will not reach equilibrium.</em>
Because of it is an irreversible reaction that goes to the forward direction . The reaction takes place till HCl dissolves Zn completely.
The sugar acid produce when D ribose is oxidized is called D RIBITOL.
D ribitol is a crystalline pentose alcohol that is formed by the oxidation of ribose. D ribitol is found naturally in some plant and in the cell wall of some gram positive bacteria. D ribitol also form part of the chemical structure of riboflavin.
Answer:
1. Yes it is balanced.
2. Water in its state change. It changes the T° from 90° to 100°C. The kinetic energy of the molecules will be higher when the temperature increases.
Explanation:
1. Mg + 2HCl → MgCl₂ + H₂
The equation is balanced, just see the subscript and the stoichiometry of the reaction
You have 1 Mg in both sides, 2 Cl in both sides and 2 H in both sides.
2. Let's use water as an example.
When water changes its temperature, from 90°C to 100°C, we say that is changing from liquid state to gas.
When you give "heat" to something you are modifying its temperature. In this case, this heat increase the temperature of water. Heat is a sort of energy. For this case, the kinetic energy of molecules is higher.
If you see water on a vessel about to boil, you will see particles rising from the bottom to the surface to pass into the gaseous state. If there is an increase in the kinetic energy in the molecules, it means that they will move more freely and much more quickly, so it will be easier for them to "escape" from the liquid phase to the gas phase.
