Answer:
Oxygen.
Explanation:
They take in oxygen from the air. This is the process of respiration.
If he was the primary scientist doing it as he did alot of the heavy lifting then yes its ok, but i also think how the others should also me at least mentioned. Or they could just not name the experiment by a person just so its not too biased
Answer:
Explanation:
Given parameters:
Volume of CO₂ = 24cm³
time taken for the reaction to complete = 8minutes.
Unknown:
rate of reaction
Soution
The reaction rate is a measure of speed of a chemical reaction. It is often calculated using the expression below:
Reaction rate = 
Reaction rate = 
= 3cm³/min
In this reaction, 3cm³ of carbon dioxide were produced per minute
I believe the answer is Chlorophyll. During photosynthesis light energy from the sun is trapped by chlorophyll, it is then used to break down water molecules to hydrogen ions and oxygen gas. This represent the first stage of photosynthesis called light dependent stage. The hydrogen ions formed in this stage then joins the light independent stage (dark stage) and oxygen is released to the atmosphere or released to the atmosphere.
The correct answer is Na, Sodium metal
Electron affinity is the change in energy of a neutral atom or molecule when an electron is added to the atom to form a negative ion. In simple terms it is the likelihood of gaining an electron. Nonmetals like to gain electrons to form anions to have a fully stable electron shell, while metals lose electrons to form cations and have a stable electron shell. Argon atom for example in the gas phase; gives off energy when it gains an electron to form an ion of Argon.
