An atom hopefully this helps
Answer:
particles larger than 5 microns are normally expelled. -particles smaller than 5 microns may enter into alveolar sacs. ... -chemical can penetrate skin and go into bloodstream.
Explanation:
Answer:
Answer the following questions: What is the composition of air? Answer: Air is composed of nitrogen, oxygen, carbon dioxide, many other gases, water vapour and dust particles. Which gas in the atmosphere is essential for respiration?
Explanation:
Answer:
3
Explanation:
There are three different elements in given chemical equation. These elements are hydrogen, oxygen and carbon.
Chemical equation:
2CH₄ + 4O₂ → 2CO₂ + 4H₂O
This equation shows the burning of methane. When methane burns in the presence of oxygen it produced water and carbondioxide.
We can see that all the reactant and product are made up of only three elements carbon, hydrogen and oxygen.
There are two reactant and two products in given reaction.
This reaction also follow the law of conservation of mass.
We can see that there are two carbon eight hydrogen and eight oxygen atoms on both side of equation.
This law was given by French chemist Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.
D. Diffusion is a passive movement. Passive meaning it does not require energy, so ATP
