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AnnZ [28]
3 years ago
11

What statement correctly describes gravity

Chemistry
2 answers:
Sedbober [7]3 years ago
3 0

Answer:

B

Explanation:

patriot [66]3 years ago
3 0

Answer:

B: An attractive force that acts between all objects without contact.

Explanation:

I took the test

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Which of the following statements best describes the current atomic theory
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You did not provide possible answers, but one possible might be that the current atomic theory is so sound and plausible that there should not be anything that could change it in the near future.
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Which of the following best describes the forces that generate solar power
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I believe the answer is A (it was on another Brainly question as well).
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The ostwald process is used commercially to produce nitric acid, which is, in turn, used in many modern chemical processes. in t
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The complete balanced chemical equation is: 
4 NH3 (g) + 5 O2 (g) → 4 NO (g) + 6 H2O (g) 

In statement form: 4mol NH3 reacts with 5 mol O2 to produce 6 mol H2O 

First let us find for the limiting reactant: 
>molar mass NH3 = 17 g/mol 
moles NH3 = 54/17 = 3.18 mol NH3 
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>molar mass O2 = 32g/mol 
moles O2 = 54/32 = 1.69 mol O2 
We have insufficient O2 therefore this is the limiting reactant 

From the balanced equation: 
For every 5.0 mol O2, we get 6.0 mol H2O, therefore

moles H2O formed =  1.69 mol O2  * 6/5 = 2.025 mol
Molar mass H2O = 18g/mol 
<span>mass H2O formed = 2.025*18 = 36.45 grams H2O produced</span>

8 0
3 years ago
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I’m learning about heredity
Morgarella [4.7K]

Answer:

1. (See explanation)

2. 46. 23 from the mother’s egg and 23 from the father’s sperm.

Explanation:

ok for number one I am not entirely sure, but I am pretty sure that light, chemicals and temperature can all affect which genes get turned on and off. I am not entirely sure if the question is asking about the environment influencing inherited traits in the form of natural selection tho? If that is something you’re seeing right now, it might be a possible answer. But honestly I am not completely sure.

6 0
2 years ago
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If a nanometer is one billionth of a meter (0.000 000 00 1 m), how many nanometers are there in one meter?
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Answer:

One billion

Explanation:

A nanometer is a BILLIONTH of a meter which means it takes one billion to equal a meter

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