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kozerog [31]
3 years ago
13

Which year was DNA evidence introduced? 1908 1988 1980 1998

Chemistry
1 answer:
stich3 [128]3 years ago
3 0

1988 was when it was first introduced

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WILL GIVE BRAINLIEST!!!
kondaur [170]

Answer:

2950 izuzjdjdi1vzhkdzhhzizuzhz

7 0
3 years ago
Which of the following words/phrases correctly describe(s) sugar water? Select all that apply.
Paul [167]

Answer:

Heterogeneous mixture solution

Explanation:

The reason this is Heterogeneous is that you cant see each individual compound in the solution. If this was sand or any compund that is not desolvable or not fully desolved in water would be Homogenous since you can see the individual compounds (water and sand)

6 0
3 years ago
Which of the statements below best describes the following reaction? HCl(aq) + KOH(aq) -> KCl(aq) + H2O(l)a. Hydrochloric aci
bonufazy [111]

Answer:

  • c. <em>Aqueous solutions of hydrochloric acid and potassium hydroxide react to produce aqueous potassium chloride and water.</em>

Explanation:

The reaction is represented by the chemical equation

  • HCl(aq) + KOH(aq) → KCl(aq) + H₂O(l)

The letters "aq" in parenthesis, next to the chemical formula of a compound, is used to indicate "aqueous" phase. It means that the compound is dissolved in water or, what is the same, it is an aqueous solution.

Hence, the choice C. is the best representation or description of the given reaction:

The <u>left side</u> or reactant side is:

       HCl(aq)                        +                         KOH(aq)                                    

               ↑                          ↑                                   ↑                          

<em>aqueous solution of       react                 aqueous solution of          </em>

<em>hydrochloric acid             with                 potassium hydroxide </em>

The <u>right side</u> or product side is:

      KCl(aq)                            +                                 H₂O(l)                                  

              ↑                              ↑                                   ↑          

<em>aqueous                               and                             water</em>

<em>potassium chloride                  </em>

8 0
3 years ago
HELP WITH SCIENCE ASAP!
alisha [4.7K]
<span>if an object is high from the ground the more potential engery that object has but if it's low it has less potential energy because it's low and wouldn't create anything </span>
8 0
3 years ago
An atom of iron has the atomic number 26. This means that
Zanzabum

Answer:

Answer in explanation

Explanation:

An atom of iron having an atomic number of 26 means there are 26 protons in the nucleus of the iron atom. This also means that for an electrically neutral atom of iron, there are 26 electrons orbiting the nucleus of the iron atom.

Factually, this also means that the atom iron occupies the position of the 26th element on the periodic table. Going forward, we can also say that the proton number of the iron element is 26.

8 0
3 years ago
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