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2 years ago

Check my answer?

2 answers:

8 0

Yes that is correct because hypotheses should be testable meaning it can be proven wrong and it has to be reasonable meaning it should make sense.

allochka39001 [22]2 years ago

8 0

Answer: A.) are reasonable and testable

A hypothesis can be defined as the supposition or assumption of scientific process that is based on limited scientific evidences and used as a starting point for further investigation. The hypothesis needs to be proved by following relevant scientific methodology.

In the given situation, both the hypothesis are correct because both warm temperature and sunlight are genuinely responsible for wilting of plant in nature. The effect of both sunlight and warm temperature can be tested separately on plant. This proves that the hypothesis are reasonable and testable.

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A farmer had an accident and spilled a chemical into his pond. Several days later, he notices many dead frogs around the pond. T

andrezito [222]

B. the frogs are a limiting factor for the gnats
the frogs limit the reproduction of the gnats, and therefore with less frogs the gnat population can increase

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2 years ago

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Me podrían decir la fórmula semidesarrollada (semi-developed formula) de:

harina [27]

Answer:

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Explanation:

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2 years ago

J.j thomson is credited with the discovery of______.

morpeh [17]

...with the discovery and identification of the electron; and with the discovery of the first subatomic particle.

C'mon man, this is on the wiki page for J.J. Thomson, first paragraph.

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2 years ago

What is Gibbs free energy?!

Scorpion4ik [409]

The answer is B! ;-; SORRY IF IM WRONG

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2 years ago

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Which of the following is true about the melting temperature of potassium chloride? The melting temperature is relatively high.

allochka39001 [22]

Answer:f

First option: the melting temperature is relatively high.

Explanation:

You can look at the melting temperature at any table that summarizes the main properties of this compound, potassium chloride.

Such melting point is 770 °C, which is relatively high.

Why is this?

Potassium chloride is a ionic compound formed by the cations of potassium, K⁺, and the chloride anions, Cl⁻. Its unit formula is KCl.

The ionic bond between K and Cl is possible because each K atom is able to yield its valence electron to one Cl atom which has 7 valence electrons.

Then, the K atoms become positive ions (cations) K⁺, while Cl atoms become negative ions (Cl⁻).

These two ions with opposite charge are bonded by the force of electrostatic attraction. This is a ionic bond.

Melting point, so as boiling point along with other physical properties, depends on the attraction force between the atoms.

Hence, since the attrative forces between the ions are relatively strong, the melting point of the ionic compounds, such as potassium chloride, are relatively high.

8 0

2 years ago