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3 years ago

The Periodic Table of Elements is organized by the number of:

Chemistry

2 answers:

Sunny_sXe [5.5K]3 years ago

7 0

The answer to your question is Atomic Number.

ASHA 777 [7]3 years ago

5 0

The classic Periodic Table organizes the chemical elements according to the number of protons that each has in its atomic nucleus. Hope this helped :)

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How many grams of sulfur (S8S8) must be dissolved in 100.0 g naphthalene (C10H8C10H8) to make a 0.11 mm solution

Rainbow [258]

Answer:

5.64x10⁻³ g of S₈S₈

Explanation:

We consider mm as milimolal

Milimolal = molal . 1000

Molal are the moles of solute contained in 1kg of solvent.

Solute → Sulfur (S₈S₈)

Solvent → naphthalene

0.11 mm / 1000 = 1.1x10⁻⁴ molal

moles of solute / kg of solvent = 1.1x10⁻⁴ molal

moles of solute / 0.1 kg of solvent = 1.1x10⁻⁴ molal

moles of solute = 1.1x10⁻⁴ m/kg . 0.1kg → 1.1ₓ10⁻⁵ moles

Molar mass S₈S₈ = 512.96 g/m

1.1ₓ10⁻⁵ mol . 512.96 g/m = 5.64x10⁻³ g

4 0

3 years ago

The table shows the nature of reactants and products formed in a certain type of chemical reaction.

enot [183]

Answer: It is true about the type of reaction that it is a single replacement reaction, and the cations in the two ionic compounds are different.

Explanation:

When one element in a compound is replaced by another element in a chemical reaction then it is called a single replacement reaction.

For example, $K + NaCl \rightarrow KCl + Na$

Here, potassium metal is replacing the sodium metal in the sodium chloride compound.

As metals become cation by losing an electron in a chemical reaction.

Thus, we can conclude that it is true about the type of reaction that it is a single replacement reaction, and the cations in the two ionic compounds are different.

5 0

3 years ago

C8H18 + O2à CO2 + H2O is the unbalanced combustion reaction between octane and oxygen. What is the coefficient for carbon dioxid

timofeeve [1]

The Answer Is B. 8 For This Question.

3 0

3 years ago

Read 2 more answers

Compare the properties of the following: Î± particles, cathode rays, protons, neutrons, and electrons.

soldi70 [24.7K]

Properties of the following are:

Alpha particle - positively charged particle (+) that consists of two electrons and two neutrons.

Cathode rays - it is the stream of electrons (negatively charged) found in vacuum.

Protons - are particles that carry positive charge and is present inside the nucleus of an atom.

Electrons - are particles that carry negative charge and is present in the orbits of the atom.

Neutrons - electrically neutral particle (0 charge) present inside the nucleus of an atom. However, it has its own mass.

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3 years ago

Octopus and squids breathe through

svet-max [94.6K]

Octopus and squids breathe like fishes they breathe from gills 

so even octopus and squids breathe through gills too.

maybe this answer would help u

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3 years ago