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Dafna1 [17]
3 years ago
15

What are the number of atoms in each Chemical Formula

Chemistry
1 answer:
podryga [215]3 years ago
6 0
You can search that up online it’s not that hard but good luck !!
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2. Why did Portugal receive Brazil?
Studentka2010 [4]

Answer:

Brazil and Portugal share a privileged relationship,[2] as evidenced in aligned political and diplomatic coordination, as well as economic, social, cultural, legal, technical and scientific cooperation.[3]

According to a 2011 BBC poll, 76% of Portuguese people view Brazil's influence positively, with 8% viewing it negatively, the most favorable perception of Brazil for any other surveyed country in the world.[4]

Explanation:

6 0
4 years ago
As a whole, plants tend to release more oxygen than carbon dioxide into the environment, but the ratios of gases differ at vario
marshall27 [118]

During the day, due to the existence of sunlight, the procedure of photosynthesis elevations over that of respiration. Photosynthesis uses carbon dioxide to produce carbohydrates removing oxygen as a byproduct. During the night, because there is no sunlight, the rate of photosynthesis decreases. This, therefore, drives the rate of respiration to surpass the speed of photosynthesis. In respiration, oxygen is consumed and carbon dioxide is dismissed.

<h3>What is photosynthesis?</h3>
  • Photosynthesis is the process by which manufacturers use sunlight, water, and carbon dioxide to produce oxygen and energy in the form of sugar.
  • The primary position of photosynthesis is to transform solar energy into chemical energy and then reserve that chemical energy for prospective use. For the most part, the planet's living designs are powered by this process.
  • An illustration of photosynthesis is how plants convert sugar and significance from water, air, and sunlight into energy to grow. Description of photosynthesis is the procedure through which plants use water and carbon dioxide to assemble their food, grow and remove excess oxygen into the air.

To learn more about photosynthesis, refer to:

brainly.com/question/19160081

#SPJ4

3 0
1 year ago
cooling a sample of matter from 70°c to 10°c at constant pressure causes its volume to decrease from 873.6 to 712.6 cm3. classif
jek_recluse [69]

Explanation:

Expression for the coefficient of thermal expansion is as follows.

           \alpha = \frac{1}{V}(\frac{\Delta V}{\Delta T})

where,   V = initial volume

          \Delta V = Final volume - initial volume

                      = (712.6 - 873.6) cm^{3}

                      = -161 cm^{3}

Now, we will calculate the change in temperature as follows.

          \Delta T = Final temperature - Initial temperature

                       = (10 + 273) K - (70 + 273) K

                       = 283 K - 343 K

                       = -60 K

Substituting these values into the equation as follows.

     \alpha = \frac{1}{873.6} \times (\frac{161}{60}) K^{-1}

                 = 0.00307 K^{-1}

It is known that for non-ideal gases the value of alpha is 0.366% which is 0.00366 per Kelvin. As it is close to our result, hence the given sample of gas is a non-ideal gas.

3 0
3 years ago
What are the units for the Volume of any Polyhedron?
pishuonlain [190]

Explanation:

A prism is a polyhedron with two parallel, congruent faces called bases that are polygons . The volume of a 3 -dimensional solid is the amount of space it occupies. Volume is measured in cubic units ( in3,ft3,cm3,m3 , et cetera).

7 0
3 years ago
Read 2 more answers
Only number 3 please
Mila [183]

Explanation:

1. total electrons = 22

<h2>thus element = titanium </h2>

2. total electrons = 31

<h2>thus element = Galium</h2>

3. total electrons = 37

<h2>thus element = Rubidium</h2>

hope it helps:)

5 0
3 years ago
Read 2 more answers
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