Answer: For every action there is an equal and opposite reaction.
When a hammer strikes a nail, the nail exerts a force back on the hammer.
Explanation:
Oil spill pollution is happening today as we speak. Fracking is one main cause of this oil spill. Sometimes airplanes load oil and dump it in the oceanic ocean and it’s really sad to hear of so.
If this continues to happen, ocean life will decline and key stone species will die meaning the whole biosphere will colapse
Answer: 
and 
and 
and 
and 
Explanation:
According to the Bronsted-Lowry conjugate acid-base theory, an acid is defined as a substance which looses donates protons and thus forming conjugate base and a base is defined as a substance which accepts protons and thus forming conjugate acid.
For the given chemical equations:
1. 
Here, is loosing a proton, thus it is considered as an acid and after losing a proton, it forms which is a conjugate base.
2. 
Here, is loosing a proton, thus it is considered as an acid and after losing a proton, it forms 
which is a conjugate base.
3. 
Here, is loosing a proton, thus it is considered as an acid and after losing a proton, it forms which is a conjugate base.
4. 
and 
are not conjugate acid/ base pairs.
5. 
Here, is loosing a proton, thus it is considered as an acid and after losing a proton, it forms which is a conjugate base.
Answer:
element S is argon and element T is potassium.
4. B
5. D
Explanation:
in an element in periodic table number of elctrons and protons are same.
4. since element S has 18 protons so its atomic number must be 18 so the element is Argon which is the last element of period 4 so the next element will go to period 4 with one extra shell and since the atomic number of next element is 19 the element is Potassium. therefore T is Potassium.
5. number of nucleons in an atom is the number of protons and neutons combined together in an nucleus
A hydrogen atom forms one bond, an oxygen atom forms two, and carbon forms four bonds.
