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ser-zykov [4K]
3 years ago
13

Explain in your own words what empirical evidence is.

Chemistry
2 answers:
notka56 [123]3 years ago
8 0

Answer:

Its basically an evidence by which we can produce some well defined outcomes .

Explanation:

When you are doing a research . its a way of knowledge by means of direct and indirect observation or experience.

zhuklara [117]3 years ago
4 0
Empirical evidence is information acquired by observation or experimentation
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The density of Mg is 1.74g/cm3. The density of strontium is 2.60g/cm3. What would you expect the density of Ca to be?
Tomtit [17]

The density of Ca will be between that of Mg and Sr

Explanation:

Ca, Mg and Sr are group II elements. They are called alkali earth metals. The correct order of the elements in this group are: Be, Mg, Ca, Sr, Ba and Ra.

Density is an intensive property of matter which describes the amount of matter(mass) per volume of a substance.

  • Density varies proportionally with mass. The higher the mass, the higher its density.
  • On the periodic table, atomic mass which the number of protons and neutrons in the nucleus of an atom increases down the group.
  • This implies a progradation in the value of density down the group. Therefore one expects that the value of density of Ca will fall between that of Mg and Sr. It cannot be more than 2.6g/cm³ nor less than 1.74g/cm³.

Learn more:

density brainly.com/question/2658982

mass number brainly.com/question/2597088

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6 0
3 years ago
Which of the following statements about the carbon cycle is NOT true?
nalin [4]

Answer:

Plants consume carbon through transpiration

Explanation:

In transpiration, plants lose water vapor through the stomata in their leaves. No carbon is involved in transpiration, which has an outbound direction. Nothing can be consumed through the stomata when vapor is going out of the plant. It´s like trying to get in through the exit.

3 0
3 years ago
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Find the partial pressure of helium gas in mmHg
mezya [45]

Answer:

214 mmhg

Explanation:

5 0
2 years ago
As described by the free-radical theory, exposure to oxidizing agents results in unstable oxygen compounds that can be neutraliz
AnnyKZ [126]

Answer: The body produce NADPH a reducing equivalents as antioxidants.

Explanation:

During the pentose phosphate pathway reducing equivalents like NADPH is produced which help to prevent oxidative stress. It reduces glutathione via glutathione reductase which converts reactive H2O2 to H2O by glutathione peroxidase.

4 0
3 years ago
How many protons are in the nucleus of an atom with an atomic number of 15
kykrilka [37]

Answer:

15 protons

Explanation:

The atomic number always equals the number of protons inside the nucleus, so if the atomic number is 15, that means 15 protons are present.

4 0
2 years ago
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