5.If 30mL of 0.5M NaOH(aq) was used to neutralize 10mL of HCl(aq), what is the concentration of the acid? Show work.

Answer : The correct option is (d).

Explanation:

Hydrosphere : It is portion or surface covered by water or fluid on the Earth. Such as : oceans, lakes , lakes, clouds etc.

Geosphere: It is a solid portion of the Earth system which includes substance found on interior side of the Earth like: rocks,minerals landforms etc. Basically it provides shape to outermost layer of the earth.

Biosphere: Regions of surface, atmosphere and hydrosphere of the Earth occupied by living organisms is known as biosphere.

Chronospere: It is mass teleportation device which can move object through space and time.

So, from all the above options chronosphere is not a part of the earth system. Hence correct option is (d).

We have that When a carbon atom losses a proton Boron element would be formed.

Boron element

From the question we are told

Is a carbon atom spontaneously lost a proton what element would be formed

Generally

• An atom is identified my its atomic or mass number

• Where

Carbon as an element has an atomic number of 6

• The atomic number is determined by the number of protons or Proton number present in the nucleus of the atom

• Now if this proton number is to be altered or added or minus from

• Therefore the elements seizes being a carbon atom but rather becomes another element

Therefore

When a carbon atom losses a proton Boron element would be formed.

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Answer: Protons carry a positive electrical charge and they alone determine the charge of the nucleus. Adding or removing protons from the nucleus changes the charge of the nucleus and changes that atom's atomic number. So, adding or removing protons from the nucleus changes what element that atom is!

Explanation: For example, adding a proton to the nucleus of an atom of hydrogen creates an atom of helium. (Actually, a few neutrons have to be added as well to make the new nucleus stable, but the end result is still helium.) Keep in mind that atoms, by definition, are electrically neutral and always contain the same number of protons and electrons.

Answer: a

Explanation:  a naturally occurring, inorganic solid that has a crystal shape and a definite chemical composition" is the one among the following choices given in the question that is the correct definition of minerals. The correct option among all the options that are given in the question is the first option. I hope it helps you.

Scientist infers about a specific period of Earth's history if many fossils were discovered from oxygen-breathing organisms, only fish lived during that time. The correct option is B).

What are fossils?

The preserved remnants of plants and animals that were submerged in sediments like sand and mud beneath ancient seas, lakes, and rivers are known as fossils.

The skeleton remains when an animal passes away because the soft components of its body disintegrate first. Sediment, which is made up of tiny rocks, buries this. The sediment surrounding the skeleton starts to consolidate and convert to rock when new layers of sediment are added on top.

A group of fossils that have been examined, classified, and organized both historically and taxonomically make up a fossil record. When organisms die, they are encased in mud and rock and eventually replaced over time by minerals.

Therefore, the correct option is B) only fish lived during that time.

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Answer:

d is wrong the correct answer is b

Explanation:

The atmosphere lacked oxygen is correct. The lack of animals that used oxygen suggests that the environment did not have much oxygen.