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nika2105 [10]
3 years ago
15

WHICH STATEMENT BEST REPRESENTS A HYPOTHESIS

Chemistry
2 answers:
natita [175]3 years ago
3 0

Answer:

D

Explanation:

Hypotheses are educated guesses, and the best answer is the one with an if, as it indicates that it's a guess.

ludmilkaskok [199]3 years ago
3 0

Answer:

letter b should be the answer

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According to the below equation, how many moles of SO2 are required to generate 1.43×1024 water molecules?
podryga [215]
Make sure the equation is always balanced first. (It is balanced for this question already) 6.022 x 10^23 is Avogadro’s number. In one mole of anything there is always 6.022 x 10^23 molecules, formula units, atoms. For one mol of an element/ compound use molar mass (grams).

Multiply everything on the top = 8.61x10^47
Multiple everything on bottom= 1.20x10^24
Divide top and bottom = 7.15x10^23

Answer: 7.15x10^23 mol SO2
3 0
4 years ago
Is this right??? If not gimme da right answer plz
NemiM [27]

Answer:

yeah

Explanation:

well, probably. they kicked me out of math class because I put a live chicken in the classroom and it pooped everywhere, so I had to clean it up and bring it back where I found it (which is the side of the road.)

3 0
3 years ago
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Which scientist discovered the neutron and gave us the current basic model of
Evgesh-ka [11]

Answer:

c

Explanation:

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6 0
4 years ago
HELP I NEED TO GET THIS FINISHED ASAP
andreyandreev [35.5K]

Answer: Cell A & Sex of rabbit

Cell A is a Sperm Which mean is a male cuz males have sperms

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3 0
3 years ago
Which compound contains both covalent and ionic bonds? <br> a. NCl3 b. NaF c. HCN d. NH4OH
Marina86 [1]
<h2>NH_4OH contains both covalent and ionic bonds.</h2>

Explanation:

A covalent bond is formed when an element shares its valence electron with another element. This bond is formed between two non metals.

An ionic bond is formed when an element completely transfers its valence electron to another element. The element which donates the electron is known as electropositive element or the metal and the element which accepts the electrons is known as electronegative element or non metal.

a. NCl_3 contain covalent bonds as they are made up of non metals only.

b. NaF contain ionic bonds as they are made up of sodium metal and fluorine non metal.

c. HCN contain covalent bonds as they are made up of non metals only.

d. NH_4OH contain  ionic bonds between NH_4 and OH and covalent between N and H in NH_4^+

Learn more about ionic and covalent bonds

brainly.com/question/13212100

brainly.com/question/2877158

8 0
3 years ago
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