Answer:
5.The limiting reactant is completely used up in the reaction
Explanation:
The limiting reactant is completely used up in the reaction is the correct answer because a limiting reactant is a reactant in chemical reaction that is completely consumed or used up in the chemical reaction. Limiting reactant when it is completely used up limits the amount of products that will be formed. The reaction will be halted or will stop when the limiting reactant is totally used up.
Explanation:
Photosynthesis is the process by which green plants manufacture their food using carbon dioxide and water in the presence of sunlight.
It is expressed using the equation below;
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
reactants products
1. Compounds consumed are carbon dioxide and water.
2. Product is glucose and oxygen.
3. Most organism obtain their nourishment directly and indirectly from photosynthetic activities.
Plants are the producers of food in the ecosystem. If the process of photosynthesis does not occur, there is no way other organisms will obtain their own nourishment.
Answer:
The heat of formation of H2O(g) is likely to be-242,8KJ.
Explanation:
The heat of formation of H2O(g) will be slightly lower than the heat of formation of H2O(1)as some energy is released during condensation of water vapour to liquid water.
Gasoline is a mixture of compounds called hydrocarbons (compounds of hydrogen and carbon). It is obtained by purifying crude oil by fractional distillation. Gasoline is most commonly referred to as a mixture of compounds, therefore it is a mixture. Gasoline is composed of hydrocarbons combined with different concentrations of ethanol. <span>Pure substances can be either elements or compounds. </span>Mixtures<span> can be either</span>homogeneous or heterogeneous<span>. Another term for a </span>homogeneous mixture<span> is a solution. ... </span>Gasoline<span> is thus a blend of different compounds, so it is a </span>mixture<span>.</span>
