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Naya [18.7K]
3 years ago
5

3. On your graph, the data points between the black squares are data for elements with atomic numbers 3 through 9. Locate these

elements on your periodic table. What term or description would you use to identify these elements with respect to the periodic table?
Chemistry
1 answer:
satela [25.4K]3 years ago
5 0

Answer:

All the given elements belong to the second period of the periodic table

Explanation:

Let's locate the elements with the given atomic numbers:

  • Z = 3, this corresponds to lithium (Li);
  • Z = 4, this corresponds to beryllium (Be);
  • Z = 5, this corresponds to boron (B);
  • Z = 6, this corresponds to carbon (C);
  • Z = 7, this corresponds to nitrogen (N);
  • Z = 8, this corresponds to oxygen, (O);
  • Z = 9, this corresponds to fluorine, (F).

Now notice that each of these 9 elements can be found in the same row of the periodic table. This is period 2. We may then summarize that all of these elements belong to the same period, period number 2.

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PLEASE HELP ASAP!! {40 POINTS}
yan [13]

Answer:

The correct answer is -

FALSIFIABLE:

Aloe vera gel can heal wounds by boosting cell renewal.

Drinking aloe juice can reduce the risk of lung cancer.

NON-FALSIFIABLE:

Aloe vera gel is the best natural skin moisturizer.

Aloe vera juice tastes better than carrot juice.

Explanation:

Falsifiable is the ability or chances of any hypothesis, claim or statement to be proved wrong. In such a hypothesis, it is possible to carry an experimental observation that disproves the idea in claim or question.

In the given examples

Aloe vera gel can heal wounds by boosting cell renewal.

Drinking aloe juice can reduce the risk of lung cancer.

There is no observation in the favor of the claim so there more likely to be falsifiable whereas, Aloe vera gel is the best natural skin moisturizer.

Aloe vera juice tastes better than carrot juice are more non-falsifiable as these are based on personal choice or experimental observation.

7 0
3 years ago
What's the mass if a nickel
Mashutka [201]
<span>58.6934 +/- 0.0002 u</span>
8 0
3 years ago
What percentage of atoms in the entire universe are hydrogen atoms?
lisabon 2012 [21]
The percentage of atoms in the universe that are hydrogen are 90%
3 0
3 years ago
5. Juan's car gets an average of 24 miles per gallon of gas. How far can Juan go on
shtirl [24]

Claim:  Earth's atmospheric CO2 levels were measured over the past 1000 years and correlated with average world temperatures.  The data demostrate that Earth's temperature did not change during the period CO2 levels were steady.  But the past 100 years show a dramatic rise in CO2 levels, with a corresponding rise in world temperatures.  The CO2 rise can be traced back to the start of the industrial revolution, when machines began doing much of the work.  These machine burn fossil fuels and the increased CO2 levels have led to a dramatic rise in world temperatures.  The data clearly show the importance of reducing fossil fuel useage, as well as other CO2 emitters.  A world of incresing temperatures will lead to greater natural disasters, such as storms, flooding, hurricanes, and drought - all of which upset the ecological balance of the planet.

6 0
3 years ago
Read 2 more answers
A 76.00-pound flask of mercury costs $151.50. The density of mercury is 13.534 g/cm3.
Agata [3.3K]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

Please see below solution:

1 lb Hg x (151.50/76 lb) = cost of 1 lb. 
<span>cost 1 lb x (1g/453.6 g) = cost of 1 g.</span>
8 0
3 years ago
Read 2 more answers
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