For each event, indicate how the concentration of each species in the chemical equation will then change to reach equilibrium. an up arrow indicates an increase in concentration, a down arrow indicates a decrease in concentration, and leaving it blank means there is no change in the concentration. 2 co ( g ) 2co(g) + + o 2 ( g ) o2(g) − ⇀ ↽ − ↽−−⇀ 2 co 2 ( g ) 2co2(g) increasing the concentration of co co increasing the concentration of co 2 co2 decreasing the volume of the system ↑ ↑ ↑ ↑ ↓ ↓ ↓ ↓ ↓ ↓ ↑ ↑ ↓ ↓ ↓ ↓ ↑ ↑

1. Increasing concentration of CO:

The concentration of the product, CO₂(g) increases (↑) and the concentration of the reactants, CO(g) and O₂(g) decreases (↓)

2. Increasing concentration of CO₂:

The concentration of the reactants, CO(g) and O₂(g) increases (↑) and the concentration of the product, CO₂(g), decreases (↓).

3. Decreasing the volume of the system:

The concentration of the product, CO₂(g) increases (↑) and the concentration of the reactants, CO(g) and O₂(g) decreases (↓).

Explanation:

According to the Le Chatelier's principle, for a given chemical reaction at equilibrium, a change in the concentration of any chemical species or volume causes the equilibrium of the reaction to shift in a direction, that minimizes the effect of the change.

Given reaction: 2CO(g) + O₂(g) ⇌ 2CO₂(g)

1. Increasing concentration of CO:

When the concentration of the reactant CO(g), increases; the equilibrium shifts towards the forward direction or product side, thereby increasing the concentration of the product, CO₂(g) and decreasing the concentration of the reactants, CO(g) and O₂(g).

2. Increasing concentration of CO₂:

When the concentration of the product CO₂(g), increases; the equilibrium shifts towards the backward direction or reactant side, thereby increasing the concentration of the reactants, CO(g) and O₂(g) and decreasing the concentration of the product, CO₂(g).

3. Decreasing the volume of the system:

When the volume of the system decreases, the pressure increases, thus causing the equilibrium of the reaction to shift in a direction that produces less number moles of gas.

Since, total number of moles of gaseous reactants and products is 3 and 2, respectively.

Therefore, when the volume of the system decreases; the equilibrium of the reaction shifts towards the forward direction or product side, thereby increasing the concentration of the product, CO₂(g) and decreasing the concentration of the reactants, CO(g) and O₂(g).

for points guys

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.