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irga5000 [103]
3 years ago
14

Helppppppp. much needed help lol

Chemistry
2 answers:
Korolek [52]3 years ago
8 0
Isotope is the correct answer
Olenka [21]3 years ago
3 0

Answer:

Isotope

Explanation:

Isotopes are variants of a particular chemical element which differ in neutron number, and consequently in nucleon number.

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Convert 0.02 g/mL to the unit g/L.
Vilka [71]
0,02 g/mL = 20 g/L

:)
4 0
3 years ago
12. A beginner's bowling ball has a mass of 4.9 kg and a volume of 5.4 liters. Will it float in water,
Greeley [361]

Taking into account the definition of density and Archimedes' principle, the beginner bowling ball will float on the water.

But first it is neccesary to know that density is a quantity referred to the amount of mass in a certain volume of a substance or a solid object.

In other words, the density is the relationship between the weight (mass) of a substance and the volume that the same substance occupies.

The expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

density=\frac{mass}{volume}

In this case, a beginner's bowling ball has a mass of 4.9 kg and a volume of 5.4 liters. This is:

  • mass= 4.9 kg= 4900 g (being 1 kg= 1000 kg)
  • volume= 5.4 L= 5400 mL (being 1L=1000 mL)

Replacing in the definition of density:

density=\frac{4900 g}{5400 mL}

Solving:

<u><em>density=0.907 </em></u>\frac{g}{mL}<u><em /></u>

On the other hand, Archimedes' principle says that an object immersed in a liquid experiences an upward vertical force equal to the weight of the volume of the dislodged liquid.

The sinking or floating of an object is determined by its density with respect to that of the liquid in which it is submerged.

Considering water as the liquid where the object is submerged in this case, an object with a higher density than water will sink. In contrast, an object with a lower density than water will float.

In this case, considering that water has a density of 1 \frac{g}{mL}, the bowling ball for beginners has a lower density. This indicates that, having a lower density than water, the object will float.

In summary, the beginner bowling ball will float on the water.

Learn more about density:

  • <u>brainly.com/question/952755?referrer=searchResults </u>
  • <u>brainly.com/question/1462554?referrer=searchResults</u>

5 0
2 years ago
Which of the following correctly describes the law of conservation of energy
egoroff_w [7]
Mass and energy can not be created or destroyed, they may be able to just be converted, and neither one seems without the opposite. For this reason in closed systems, both mass and energy are conserved individually. " I hope this helps "
3 0
3 years ago
What are 2 comparisons between organisms and music?
Brrunno [24]

Answer:

Explanation:

Can I please have this for some reason all my answers got deleted (I had 28)

Now are gone so you don't have to give thanks just let me get out of the negative. (pls!!)

6 0
2 years ago
Read 2 more answers
Select the correct answer.
Elina [12.6K]

Answer:

CU

Explanation:

Cu is the correct answer if I'm correct

4 0
2 years ago
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