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larisa86 [58]
2 years ago
10

(01.01 MC) Which of the following could be considered a scientific statement?

Chemistry
2 answers:
irinina [24]2 years ago
6 0
C is the answer because alalaalalaa boba is the best and i love this house and i want to see it so badly and so it’s supposed to be a great answer because it’s C
Travka [436]2 years ago
5 0

The correct answer is option C, that is, it appears that ants live in colonies.

The statement, that is, pizza is the best-tasting food on Earth is false, as it cannot be tested. The statement, that is, I believe that there is life on other planets is not a scientific statement, as it is just a belief. The statement, that is, I think nuclear energy is bad is also not a scientific statement as it is just an opinion.  

The statement, that is, it appears that ants live in colonies is a scientific statement as one can observe and test this.  

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Pls do it I don’t understand
Ann [662]
The first question's answer is

6 0
2 years ago
Even though so much energy is required to form a metal cation with a 2+ charge, the alkaline earth metals form halides with gene
nasty-shy [4]

The ∆Hrxn of the reaction is -394.5kJ/mol.

<h3>What is alkaline earth metal? </h3>

The alkaline earth metals are those elements which correspond to group 2 of the modern periodic table.

All elements of this group forms a cation of +2 charge.

The other elements of this group are:

Beryllium, Magnesium, Calcium, Strontium, Barium, and Radium.

<h3>What is Halogen? </h3>

The Halogen elements are present in group 17 of the modern periodic table.

All elements of this groups forms anions of -1 charge.

The elements of this group are:

Fluorine, Chlorine, bromine, iodine, and astatine.

∆Hrxn = ∆H(bond broken) - ∆H(bond formed)

We have following data of bond energy in kJ/mol:

Mg—Mg = 738

Cl—Cl = -349

Mg—Cl = 783.5

Since, one mole of Mg react with one mole of Cl atom to form one mole of MgCl

∆Hrxn = 738-349-783.5

∆Hrxn = -394.5kJ/mol.

Thus, we concluded that the ∆Hrxn of the reaction is -394.5kJ/mol.

learn more about bond energy:

brainly.com/question/13526463

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3 0
1 year ago
When molten rock undergoes crystallization above ground, what type of rock results?
Alika [10]
Your answer should be:
<span>Extrusive igneous rock</span>
8 0
3 years ago
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When 3.0 mol Al react with 7.0 mol HCl, what is the limiting reactant and how many moles of H2 can be formed?
inysia [295]
HCl is the limiting reactant, and 3.5 mol H2<span> can be formed</span>
6 0
3 years ago
Describe how elements are laid out on the periodic table of elements.
defon

Answer:

The chemical elements are arranged in order of increasing atomic number.

Explanation:

Hydrogen = 1

Helium = 2

Lithium = 3

8 0
3 years ago
Read 2 more answers
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