2 years ago

Why are fossils important in the development of the geologic time scale?

1 answer:

4 0

Fossils are fundamental to the geologic time scale. The names of most of the eons and eras end in zoic, because these time intervals are often recognized on the basis of animal life. Rocks formed during the Proterozoic Eon may have fossils of relative simple organisms, such as bacteria, algae, and wormlike animals

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What happens to the molarity of bleach when you prepare a solution using 1 gallon of water and 5 table spoons of bleach (sodium

son4ous [18]

Answer:

Due to the presence of caustic soda in sodium hypo chlorite, the pH of the water is increased. When sodium hypo chlorite dissolves in water, two substances form, which play a role in for oxidation and disinfection. These are hypochlorous acid (HOCl) and the less active hypochlorite ion (OCl-).

Explanation:

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3 years ago

In terms of entropy and energy, systems in nature tend to undergo changes toward

andrew-mc [135]

Number 2 lower entropy and higher entropy

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2 years ago

0.315 to scientific notation

irga5000 [103]

Answer:

3.15 × 10^-1

3.15E-1

Explanation:

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3 years ago

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What is the molar mass of H2(SO4)3?

nalin [4]

Answer:

Explanation:

The molecular mass of C2H6 is approximately 30 or [(2 x 12) + (6 x 1)]. Therefore the molecule is about 2.5 times as heavy as the 12C atom or about the same mass as the NO atom with a molecular mass of 30 or (14+16).

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3 years ago

Protons have a positive charge true or false

aksik [14]

Answer:

True

Explanation:

Protons have a positive electrical of +1

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2 years ago