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mote1985 [20]
3 years ago
15

Who is credited with creating the first accurate model of DNA

Chemistry
2 answers:
Temka [501]3 years ago
7 0

Answer:James Watson and Francis Crick are credited with creating first accurate model of DNA.

Explanation:

kupik [55]3 years ago
7 0

Answer:

Watson & Crick.

Explanation:

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Which equation describes the mass of an object in relation to its volume and density? a. m=DV b. m=D×V c. m=D+V d. m=VD
zhenek [66]

Answer:

B

Explanation:

the formula is d=m/v

both sides xV

dv=m

6 0
3 years ago
If a solution conducts electricity, it it positive evidence that
Goshia [24]
<span>If a solution conducts electricity, it it positive evidence that solute dissolved in solvent is electrolyte.</span>
7 0
3 years ago
Read 2 more answers
Write the cations and anions present in NaCl​
pochemuha

In table salt, sodium chloride, sodium is the cation (Na+) and chloride is the anion (Cl-).
6 0
3 years ago
an acid accepts H and removes them from a solution, is a solution where the water molecules are intact
n200080 [17]
<h3>An acid accepts H and removes them from a solution</h3>

When placed in water, acids, bases, and salts dissociate (separate) into electrolytes (ions). Salts dissociate into a cation (that is not H+) and an anion (that is not OH-), whereas acids and bases dissociate into H+ and an anion. An acid separates into anions and hydrogen ions (H+). Strong acids produce a high concentration of H+ by dissociating every single one of their molecules . Water-based solutions,

Acid:

When a material or chemical is in solution, it releases hydrogen ions (H+), which are known as acids. All hydrogen ions (H+) and chloride ions (Cl-), which are normally bound together by ionic bonding, dissociate (separate) in water when exposed to a strong acid like hydrochloric acid (HCl). Only some ions disintegrate into hydrogen ions (H+) and bicarbonate ions (HCO3-) in a weak acid like carbonic acid (H2CO3), while others are still bound together by ionic bonds.

Define base?

A base is a chemical that, when in solution, emits hydroxyl ions -{OH). We can also define a base as a substance that releases hydroxyl ions (OH-), which mix with any hydrogen ions (H+) in the solution to generate water molecules (OH- + H+ = H2O).

Therefore, a substance that receives or accepts hydrogen ions (H+) that are already present in the solution qualifies as a base.

Because it totally dissociates into sodium ions (Na+) and hydroxyl ions (OH-) when placed in water, sodium hydroxide (NaOH), which is a strong base, is now liberated and dissolves in water.

c

for more information please visite:

brainly.com/question/15017356?referrer=search

#SPJ4

8 0
2 years ago
Calculate the percent ionization of nitrous acid in a solution that is 0.311 M in nitrous acid (HNO2) and 0.189 M in potassium n
Alla [95]
<span>HNO2 =====> H+ + NO2-
</span>I<span>nitial concentration</span> = 0.311
<span>C = -x,x,x </span>
<span>E = 0.311-x,x,x

</span>KNO2 ====>K+ + NO2- 
<span>Initial concentration = 0.189 </span>
<span>C= -0.189,0.189,0.189 </span>
E = 0,0.189,0.189
 
6 0
3 years ago
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