I. Because they're a limited resource
2 Because they're a cause of carbon pollution.
The answer is D: Products combine to produce new reactants... Hope this helps! :)
Answer:
a.) It is a chemical reaction because a new substance was formed and a colour change occurred in the reaction.
b.) Iron- Metallic element
sulpher- Non-Metalic element
Iron Sulphide- Compound
HOPE IT HELPS....
Answer:
Is removed from the atmosphere by photosynthesis.
Explanation:
The carbon dioxide (CO2) is presented in the atmosphere and its cycle began with it's incoming by respiration, combustion of fuels and decomposition. The autotrophs, which realize photosynthesis, use CO2 as fuel to produce their food with Sun rays.
The CO2 comprises about 0.3% of the atmospheric gases, and in the past few years, its input is being higher than its removal of the atmosphere, which is aggravating the greenhouse effect. Besides, the atmosphere of Venus has higher levels of CO2.
Answer:
Gas
Explanation:
The law of mass conservation states that the total mass of the reactants should be equal to the total mass of the products, that is, the mass should be conserved.
There are specific occasions when students might think that their findings do not follow the law. This is usually the case when some specific gas is evolved in a reaction.
The problem is that when gas evolves, if it's not soluble in a given solution, it escapes it into the surroundings and it seems at first that the mass of the products is actually lower than expected.
We would need to collect the gas evolved and calculate its mass in order to add it to the mass of the remaining products in order to verify the law in such cases.
