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goldenfox [79]
4 years ago
14

Scientists use the relationship between the DNA of various species to estimate how long ago they diverged from each other evolut

ionarily. Evidence shows that some of these evolutionary changes occurred in a clock-like fashion over a long period of time. What must be true for this explanation to be considered a theory?
It must be proven by at least three different sets of experiments with all data documented carefully.

All of the current evidence must support this as the best explanation scientists can offer.

It must represent the beliefs and opinions of the majority of the leading scientists in the field.

All of the scientists in the related field must vote for this hypothesis to become a theory.
Chemistry
1 answer:
Brilliant_brown [7]4 years ago
6 0
Your answer should be B. Scientists have to explain everything they offer.

If this is the appropiate answer make sure to mark as brainliest!
-procklown
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Please answer ASAP!!
Alenkasestr [34]

Answer:

C.0.28 V  

Explanation:

Using the standard cell potential we can find the standard cell potential for a voltaic cell as follows:

The most positive potential is the potential that will be more easily reduced. The other reaction will be the oxidized one. That means for the reactions:

Cu²⁺ + 2e⁻ → Cu E° = 0.52V

Ag⁺ + 1e⁻ → Ag E° = 0.80V

As the Cu will be oxidized:

Cu → Cu²⁺ + 2e⁻

The cell potential is:

E°Cell = E°cathode(reduced) - E°cathode(oxidized)

E°cell = 0.80V - (0.52V)

E°cell = 1.32V

Right answer is:

<h3>C.0.28 V </h3>

<h3 />

4 0
3 years ago
What type of reaction occurs when two hydrogen atoms collide at high speed combining together into a helium atom: alpha decay, b
Elan Coil [88]

Answer:

fusion   when you fuse things you combine them.

Explanation:

7 0
3 years ago
A 10.00 mL sample of 8.50 M HNO3 solution is diluted to a new volume of 65.0 mL. What is the concentration of the dilute solutio
loris [4]

Answer: 1.31M

Explanation:

V1 = 10mL

C1 = 8.5M

V2 = 65mL

C2 =?

C1V1 = C2V2

10 x 8.5 = C2 x 65

C2 = (10 x 8.5 ) /65

C2 = 1.31M

4 0
3 years ago
What is the percent by volume of isopropyl alcohol in a solution that contains 45 ml of isopropyl alcohol in 1.4 L of water?
11Alexandr11 [23.1K]

Answer:

3.11%

Explanation:

We express a solution's volume by volume percent concentration, % v/v,

Take the ratio of the isopropyl alcohol (IPA) volume to the total volume of the solution, which is 1400 mL of water+ 45 mL of IPA,

and multiply by 100 to get the percentage:    45/(1400+45) *100 = 0.0311*100 =  3.11%

6 0
3 years ago
When heat is added to atoms, the molecules vibrate much more slowly.
fenix001 [56]

Answer:

false

Explanation:

when heat  is added to atoms, the molecules vibrate more quickly, because it increases the heat energy, which in turn, increases the particle movement

3 0
2 years ago
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