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leonid [27]
3 years ago
8

Five students had to answer the question how are elements arranged in a periodic table

Chemistry
1 answer:
attashe74 [19]3 years ago
8 0
As the atomic number of an element increases, so does the atomic weight(mass). It should be the first option.
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When one metal mixes into the crystalline lattice of another it is called a(n)
ikadub [295]

Answer:

it would be an alloy

Explanation:

 It is a type of substance that is made by the melting of two or more elements together.

3 0
3 years ago
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Which connects the ovary and uterus?<br><br> sperm duct<br> fallopian tube<br> urethra<br> vagina
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The fallopian tubes connects them
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How do i describe endothermic and exothermic changes in matter?
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3 years ago
If 123 ml of a 1. 1 m glucose solution is diluted to 500. 0 ml, what is the molarity of the diluted solution?
Ludmilka [50]

The molarity of the diluted solution is 0.2706 M.

Given,

M₁ = 1.1 M

V₁ = 123 mL

V₂ = 500.0 mL

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1.1*123=M₂*500

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<h3 /><h3>Molarity </h3>

Molarity, a concentration unit used in chemistry, is determined by dividing the number of moles of a solute by the number of liters of solution. The phrase "molar concentration" (also known as "molarity," "amount concentration," or "substance concentration") refers to the amount of a substance per unit volume of solution and is used to describe the concentration of a chemical species, specifically a solute, in a solution. The most frequent measure of molarity in chemistry is the number of moles per liter, denoted by the unit symbol mol/L or mol/dm3 in SI units. A solution with a concentration of 1 mol/L is referred to as 1 molar, or 1 M.

Learn more about Molarity here:

brainly.com/question/2817451

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6 0
2 years ago
The ionization energies required to remove successive electrons from one mole of calcium atoms are 590 kJ/mol, 1145 kJ/mol, 4912
Alexxx [7]

Answer:

Ca^2+

Explanation:

As we know, more energy is required to remove an electron from a positively charged ion than is required to remove an electron from a neutral atom. Hence, the second ionization energy of calcium is greater than its first ionization energy.

However, the third and fourth ionization energies of calcium are much higher than the second ionization energy because they involve removal of electrons from an inner filed shell. This process requires a lot of energy and is often not feasible.

Hence, the most common ion of calcium must be Ca^2+ where only two electrons are removed from calcium.

8 0
2 years ago
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