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Leto [7]
3 years ago
7

In the modern periodic table, which of the following represents the last pair of elects for which Newlands' Law of Octaves would

hold true?
1. AI and GA
2. AI and SI
3. NE and AR
4. MG and CA
Chemistry
1 answer:
Paladinen [302]3 years ago
3 0

Answer: Mg and Ca

Explanation:

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Explanation:

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8 0
3 years ago
Answer the question
Ostrovityanka [42]
It is an adaptation
3 0
3 years ago
What is the ph of a solution that is 0.100 m hio3and 0.100 m naio3?
Nookie1986 [14]
What are the answer choices?
8 0
4 years ago
a 360mg sample of sugar (molar mass of 180 g/mol) is dissolved in enough water to produce 200mL of solution. after the sugar is
Pie
360 mg / 1000    => 0.36 g

molar mass => 180 /mol

number of moles:

mass of solute / molar mass

0.36 / 180 => 0.002 moles

Volume solution = 200 mL / 1000 => 0.2 L

M = n / V

M = 0.002 / 0.2

M = 0.01 mol/L

hope this helps!
5 0
3 years ago
Which of the following statements is true?
seropon [69]
Answer: option <span>D Chemical reaction rates vary with the conditions of the reaction, but nuclear decay rates do not.

Justification:

1) The rate of chemical reactions are affected by: concentration of the reactants, state of the reactants, temperature, and presence of catalizers. So the first part of the statement is true.

2) Nuclear decay rates are constant. The decay depends on the nature of the element but not the conditions. That is why dating fossils with radiactive isotopes is possible. So, the second part of the statement is true.
</span>
5 0
3 years ago
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