What does solubility mean?

Answer:The answer is D.1,3

Explanation:

Answer:

there are 8.3259093974539 moles in 100 grams of carbon dioxide

The number of moles that are in 100 grams of carbon dioxide is 2.272 g/mol. Moles can be calculated by dividing the mass by the molar mass of the compound.

"The mole is a SI unit of measurement that is used to calculate the quantity of any substance."

The molar mass of many compounds can be calculated by dividing the mass of the compound by the number of moles of the compound. Mass is the quantity of matter of a physical body. The product of the molar mass of the compound and the moles of the substance are defined as mass.

Moles = mass / molar mass

The mass of carbon dioxide is 100 grams

The molar mass of carbon dioxide is 44.01 g/mol

Put the values in the formula of moles:

100 / 44.01 =  2.272 g/mol

Therefore, there are 2.272 g/mol of moles in 100 grams of carbon dioxide.

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Answer: The molar mass is the mass of a given chemical element or chemical compound (g) divided by the amount of substance (mol).

Explanation: The molar mass of a compound can be calculated by adding the standard atomic masses (in g/mol) of the constituent atoms.

flourine have 9 proton

19 neutrons and 9 electron

mark be a brain list

Mesosaurus lived in freshwater lakes and ponds. Elongated and slim, it measured about 3.3 feet long. The skull and tail were both long and narrow, and the animal probably undulated through the water as it fed on small crustaceans and other prey with its jaws, which were full of long, thin, pointed teeth.

Answer:

Cu (s) + 2H₂SO₄(aq) —> CuSO₄(s) + 2H₂O (l) + SO₂(s)

Explanation:

Copper metal => Cu

Sulphuric acid => H₂SO₄

copper (II) sulfate => CuSO₄

Water => H₂O

sulfur dioxide => SO₂

The equation for the reaction between copper metal and aqueous sulfuric acid can be written as follow:

Cu + H₂SO₄ —> CuSO₄ + H₂O + SO₂

The above equation can be balance as follow:

Cu + H₂SO₄ —> CuSO₄ + H₂O + SO₂

There are 2 atoms of S on the right side and 1 atom on the left side. It can be balance by writing 2 before H₂SO₄ as shown below:

Cu + 2H₂SO₄ —> CuSO₄ + H₂O + SO₂

There are 4 atoms of H on the left side and 2 atoms on the right side. It can be balance by writing 2 before H₂O as shown below:

Cu + 2H₂SO₄ —> CuSO₄ + 2H₂O + SO₂

Thus, the equation is balanced.

Include the phase of each reactant and product, we have:

Cu (s) + 2H₂SO₄(aq) —> CuSO₄(s) + 2H₂O (l) + SO₂(s)

Answer:

c

Explanation:

they are a gas

Answer:

c. Oxygen molecules will spread evenly throughout both jars because of weak intermolecular forces.

Explanation:

Gases mold to take shape and fill the containers they're in.

Hope this helps :)

Answer:

alkali metals: 1 valence electron, very reactive metals

alkaline earth metals: 2 valence electrons, reactive metals

halogens: 7 valence electrons, very reactive nonmetals

noble gases: 8 valence electrons, very little reactivity

Explanation:

The groups increase by 1 valence electron as you move from left to right across the periodic table, skipping over the transition metals. The closer an element is to having a full octet of 8 valence electrons, the more reactive it will be. The alkali metals and halogens are both just 1 away from an octet -- alkali lose an electron, halogens gain one. This makes them very reactive.

Answer:

Mass = 1012 g

Explanation:

Given data:

Number of moles of CO₂ = 23 mol

Mass in gram = ?

Solution:

Formula:

Mass = number of moles × molar mass

Molar mass of CO₂ = 44 g/mol

by putting values,

Mass = 23 mol  × 44 g/mol

Mass = 1012 g

Answer:

3.5 × 10³ mmHg

Explanation:

Step 1: Given data

Step 2: Calculate the pressure (P) of the gas

If we assume an ideal behavior, we can calculate the pressure of the hydrogen gas using the ideal gas equation.

P × V = n × R × T

P = n × R × T/V

P = 5.0 mol × (62.4 mmHg.L/mol.K) × 500 KT/44.8 L = 3.5 × 10³ mmHg

HCL:hydrochloric acid

Nacl:sodium chloride

moles of Na produced = 6 moles

Given

Reaction

2Na3N---> 6Na+N

6 moles of Na3N

Required

moles of Na

Solution

I don't really understand the reaction in the problem, all I know is the decomposition reaction of sodium azide NaN3

2NaN₃ → 2Na + 3N₂

The reaction coefficient shows the mole ratio of the compounds involved in the reaction

From the equation(balanced), mol ratio of Na : NaN₃ = 2 : 2, so mol Na :

= 2/2 x moles NaN₃

= 2/2 x 6 moles

= 6 moles

Answer: separate into ions

form acids and/or bases

Explanation:

Answer:

separate into ions

Explanation:

Answer:

it is A.

Explanation:

A.) 199g

Answer:

Barium-138

Explanation:

The mass number is the atomic number + the number of neutrons. ... Identify the atom whose nucleus is composed of 56 protons and 82 neutrons. Barium-138 (the number of protons identifies the atom) Gallium has two naturally occurring isotopes: Ga-69 with a mass of 68.9256 amu and a natural abundance of 60.11% and Ga-71.

The study of chemicals is called chemistry.

The correct answer is true.

According to the question, the statement is right because the solid amount is converted into the gas after burning but the mass remains constant.

Hence, the correct answer is true.

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The balanced equation

6CO₂ + 6H₂O = C₆H₁₂O₁₆ + O₂

Given

Reaction

CO2 + _H2O = _C6H12O16 + _O2

Required

Balanced equation

Solution

Give a coefficient

aCO₂ + bH₂O = C₆H₁₂O₁₆ + cO₂

Make an equation

C, left = a, right = 6⇒a=6

H, left = 2b, right = 12⇒2b=12⇒b=6

O, left=2a+b, right = 16+2c⇒2a+b=16+2c⇒2.6+6=16+2c⇒2c=2⇒c=1

The equation becomes :

6CO₂ + 6H₂O = C₆H₁₂O₁₆ + O₂

Answer:

number of atoms

i think sorry if this isnt right x

Explanation:

The mass of air : 96.5 g air

Given

The molecular mass of air, at STP : 28.97 g/mol.

3.33 moles of air

Required

The mass

Solution

The mole is the number of particles contained in a substance

1 mol = 6.02.10²³

Moles can also be determined from the amount of substance mass and its molar mass

mol = mass : molar mass

mass = mol x molar mass

Input the value :

mass = 3.33 moles air x 28.97 g air/1 mol air

mass = 96.47 g ≈ 96.5 g air

Answer:

0.474 moles of C₆H₆OS

Explanation:

Step 1: Write the balanced equation

2 C₆H₆OS + 11 O₂ ⇒ 12 CO + 6 H₂O + 2 SO₃

Step 2: Establish the appropriate molar ratio

According to the balanced equation, the molar ratio of C₆H₆OS to SO₃ is 2:2.

Step 3: Calculate the moles of C₆H₆OS reacted if 0.474 moles of SO₃ are produced

We will use the previously established molar ratio.

0.474 mol SO₃ × 2 mol C₆H₆OS/2 mol SO₃ = 0.474 mol C₆H₆OS

Answer:

600 mph

Explanation:

Just divide 3000 by 5.

Answer:

READ MORE about the factors that cause algal blooms... Nutrients promote and support the growth of algae and Cyanobacteria. The eutrophication (nutrient enrichment) of waterways is considered as a major factor. The main nutrients contributing to eutrophication are phosphorus and nitrogen.

Answer:

If the products contain 3 nitrogen atoms, then so did the reactants since overall mass is conserved in a chemical reaction.

Explanation:

so the answer is A

Answer:

Explanation:

5 moles of hydrogen gas would react with 2.5 of the available 3 moles of oxygen gas, to form 5 moles of water. The molar mass of water is 18 g/mol, so you would end up with 5 x 18 = 90 g of water.

The mass percent of hydrogen in CH₄O is 12.5%.

Mass percent is the mass of the element divided by the mass of the compound or solute.

Step 1: Calculate the mass of the compound.

mCH₄O = 1 mC + 4 mH + 1 mO = 1 (12.01 amu) + 4 (1.00 amu) + 1 (16.00 amu) = 32.01 amu

Step 2: Calculate the mass of hydrogen in the compound.

mH in mCH₄O = 4 mH = 4 (1.00 amu) = 4.00 amu

Step 3: Calculate the mass percent of hydrogen in the compound.

%H = (mH in mCH₄O / mCH₄O) × 100%

%H = 4.00 amu / 32.01 amu × 100% = 12.5%

The mass percent of hydrogen in CH₄O is 12.5%.

CO2 = 1.580 grams H2O = 0.592 grams Lookup the molar mass of each element in the compound Carbon = 12.0107 Hydrogen = 1.00794 Oxygen = 15.999 Calculate the molar mass of CH4O by adding the total masses of each element used. 12.0107 + 4 * 1.00794 + 15.999 = 32.04146 Now calculate how many moles of CH4O you have by dividing by the molar mass. m = 1.15 g / 32.04146 g/mole = 0.035891 mole Now figure out how many moles of carbon and hydrogen you have. Carbon = 0.035891 moles Hydrogen = 0.035891 moles *

Therefore, The mass percent of hydrogen in CH₄O is 12.5%.

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Answer:

4.42 × 10⁻³⁷ m

Explanation:

Step 1: Given and required data

Step 2: Calculate the de Broglie wavelenght (λ) of the body

We will use de Broglie's equation.

λ = h / m × v

λ = (6.63 × 10⁻³⁴ J.s) / 1 kg × (1500 m/s) = 4.42 × 10⁻³⁷ m

Answer:

Explanation:

Combustion is when fuel reacts with oxygen to release heat energy. Combustion can be slow or fast depending on the amount of oxygen available. Combustion that results in a flame is very fast and is called burning. Combustion can only occur between gases.