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Grace [21]
3 years ago
12

Which of the following is NOT a reason why index fossils are chosen for determining ages of rocks? Select all that apply.

Chemistry
1 answer:
Anarel [89]3 years ago
5 0

Answer:

Lol

Explanation:

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An ionic compound that results from the reaction of an acid and a base is called a(n)______. the cation in this compound comes f
harkovskaia [24]

An ionic compound that results from the reaction of an acid and a base is called a(n) salt. the cation in this compound comes from the base while the anion comes from the acid.

When an acid and a base are together, they react to counteract each other's effects and create a salt.

Water is created when the OH(-) anion of the base and the H(+) cation of the acid mix.

A salt is a substance that is created when an anion from an acid and a base combine.

Common table salt, NaCl, is created when sodium hydroxide and hydrochloric acid are combined.

The positive ion (cation) of a base and the negative ion (anion) of an acid make up a salt.

A neutralizing reaction occurs when an acid and a base interact. Additionally, sodium chloride, generally known as table salt, is referred to as salt.

Learn more about neutralization reaction here brainly.com/question/23008798

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6 0
2 years ago
The difference between skeletal and cardiac muscles is that the cardiac muscle is involuntary and cannot be actively controlled.
Virty [35]
True ( sorry if i’m wrong )
5 0
3 years ago
Read 2 more answers
What heavier element is created when hydrogen atoms fuse together in the sun’s core?
sergey [27]

Answer:

Helium is created from hydrogen in the sun's core.

Four hydrogen-1 nuclei fuse to produce

  • one helium-4 nucleus, two neutrons,
  • two positrons, and
  • two electron neutrinos.

Explanation:

Step One:

{\rm ^1_1 H + ^1_1 H\to ^2_1 H + e^{+}} + v_e.

Two hydrogen-1 nuclei fuse. One proton will convert to a neutron. The products will be

  • one hydrogen-2 nucleus,
  • one positron, and
  • one electron neutrino.

Step Two:

\rm ^1_1 H +^2_1 H \to ^3_2 He.

There are plenty of hydrogen-1 nuclei available in the core of the sun. The hydrogen-2 nucleus from step one will fuse with a hydrogen-1 nucleus. The product is

  • one helium-3 nucleus.

Step Three

\rm ^3_2 He + ^3_2 He \to ^4_2 He + ^1_1 H + ^1_1 H.

Two helium-3 nuclei from step two react with each other. The products are:

  • one helium-4 nucleus, and
  • two hydrogen-1 nuclei.

The overall reaction will be:

{\rm 6\; ^1_1 H \to ^4_2 He + 2\; ^1_1 H+2\; e^{+}}+v_\text{e}.

{\rm 4\; ^1_1 H \to ^4_2 He + 2\; e^{+}} + v_\text{e}

In other words, hydrogen nuclei in the core of the sun fuse together to form helium.

6 0
3 years ago
Write the symbol for the ions that form of the follown compound
sattari [20]

Answer:

it can be negative or positive symbols

Explanation:

but there are no compounds given here

8 0
2 years ago
What happens in an oxidation half-reaction?
madreJ [45]

Answer:

Elements lose electrons.

Explanation:

8 0
3 years ago
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