The plants give out oxygen so for us humans will live
Carbon Dioxide has two polar C=O. bonds, but the geometry of Carbon dioxide is linear so that the two bond dipole moments cancel and there is no net molecular dipole moment; the molecule is nonpolar.
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Answer:
The correct answer is : 
Explanation:
According to the Bronsted Lowry conjugate acid-base theory, an acid is defined as a substance which donates protons and a base is defined as a substance which accepts protons.
Acid after donating protons changes into conjugate base and base after accepting protons changes into conjugate acid.
So, when HF in water reacts, it form fluoride ions and hydronium ions. The recation is given as:
Here, HF is acting as a Bronsted Lowry acid by donating proton and forms it conjugate base , Where as water is acting as a Bronsted Lowry base by accepting a proton and forms its conjugate acid 
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Answer:
There are many infectious diseases for which we don't have an effective treatment. In these cases, the scientific community is working to understand the molecular mechanisms used by these pathogens to attack human cells. From a medical perspective, it is imperative to use treatments to improve the patient's life quality.
Answer:
There is an extra O2 molecule left over
Explanation:
