On four, in real life, she could put it in a strainer and put a bowl below the strainer. The liquid will fall through and into the bowl, but the solids will stay in the strainer. That may not be correct in terms of your reading because I don't know what the reading is.
Advantages
Solar energy is a clean and renewable energy source.Once a solar panel is installed, solar energy can be produced free of charge.Solar energy will last forever whereas it is estimated that the world’s oil reserves will last for 30 to 40 years.Solar energy causes no pollution.Solar cells make absolutely no noise at all. On the other hand, the giant machines utilized for pumping oil are extremely noisy and therefore very impractical.Very little maintenance is needed to keep solar cells running. There are no moving parts in a solar cell which makes it impossible to really damage them.In the long term, there can be a high return on investment due to the amount of free energy a solar panel can produce, it is estimated that the average household will see 50% of their energy coming in from solar panels.
Disadvantages
Solar panels can be expensive to install resulting in a time-lag of many years for savings on energy bills to match initial investments.Electricity generation depends entirely on a countries exposure to sunlight; this could be limited by a countries climate.Solar power stations do not match the power output of similar sized conventional power stations; they can also be very expensive to build.Solar power is used to charge batteries so that solar powered devices can be used at night. The batteries can often be large and heavy, taking up space and needing to be replaced from time to time.
In your question where there is an Iron that is obtained commercially by the reaction of hematite with carbon monoxide. So the ask for this question is to calculate how many grams of iron are produced if 13 moles of hematite react with 38 moles of carbon monoxide and the answer is 25.5 moles of iron
Answer:
5.0 × 10⁴ g of CO₂
Explanation:
First, we write the balanced equation for the combustion of methane.
CH₄ + 1.5 O₂ ⇄ CO₂ + H₂O
Now, we can establish the following relations:
- 16g of CH₄ produce 44g of CO₂
- 1 GJ = 10⁹ J
- 55 MJ (55 × 10⁶ J) are released for every 1 kg (10³g) of CH₄ burned.
Using proportions,
Answer:
The energy of the electromagnetic waves and gravitational radiation is a radiant energy. Radiant energy can travel through air, liquid, glass, space, or any other substance. It is created by changing configuration of electrons. Radiant energy can be transmitted in a vacuum environment, so the matter is not essential in transmitting radiant energy.
Explanation: