what is 1+1? answer in full sentences.

Answer:

1.11 g

Explanation:

From the answer you're given that HCl is the limiting reactant.

Mg + 2HCl -> MgCl2 + H2

40.0 g

First of all you want to know the moles of HCl you actually have:

40.0 g HCl x  [tex]\frac{1 moles of HCl}{36.45 g/mol}[/tex] = 1.09739 moles of HCl.

Where 36.45 is the molar mass of H (1.008) + Cl (35.45).

Since the limiting reactant is HCl you'll have to discover how much H2 is produced from the limited quantity of reactant you have:

1.09739 moles of HCl x  [tex]\frac{1 moles of H2}{2 moles of HCl}[/tex] = 0.54869 moles of H2 is produced

Now you have to simply convert the moles of H2 in grams:

0.54869 moles of H2 x 2.016 g/mol H2 = 1.106 g

Where 2.016 is the molar mass of H2.

Theoretical yield of hydrogen atom is produced in 2Hcl mg , mgcl₂ and h₂ if 40.0 g of Hcl react with an excess of magnesium is 1.096 moles.

Molarity (M) is the amount of a substance in a certain volume of solution. Molarity is defined as the moles of a solute per liters of a solution. Molarity is also known as the molar concentration of a solution.

Theoretical yield of hydrogen atom is calculated by using mass amd molar mass of an atom.

2Hcl + mg---> MgCl₂ + H₂

The theoretical yield of hydrogen is calculated as follows

mass/molar mass

40 ÷ 36.5 = 1.096 moles

by use of mole ratio of Hcl to H2 which is 2:1

moles of H2 = 1.096 ÷ 2 = 0.548moles

mass is therefore =  moles x molar mass

that is 0.548moles x 2 = 1.096 grams

Hence, the theoretical yield of hydrogen atom is 1.096 grams.

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Answer: atom

Explanation: molecule is a group or two or more atoms

protons and electron are subatomic particles

atom is the smallest unit of matter

Answer:

I didn't draw this but I think they're asking you to draw this

Explanation:

Answer C

Explanation: the solute will be sugar and the solvent will be water :)

Answer:

The stigma on the underside of the leaf allows Gas and Water Vapour to move in and out of the leaf

Ideal gas law states

V is volume (L), P is pressure (atm), R is universal gas constant: 0.0821 L·atm/mol· K, n is number of moles, T is temperature in Kelvin

Here given:

[tex]\blacksquare[/tex] mass of O₂ : 100 gram

[tex]\blacksquare[/tex] moles: mass/molar mass = 100/32 = 3.125 moles

[tex]\blacksquare[/tex]  25.0 °C = (25+273.15) = 298.15 K

[tex]\blacksquare[/tex]  pressure: 1.25 atm

Volume:

[tex]\boxed{\sf V=\dfrac{nRT}{P}}[/tex]

[tex]\Rightarrow \sf V=\dfrac{(3.125 \ x \ 0.0821 \ x \ 298.15 )}{1.25}[/tex]

[tex]\Rightarrow \sf V=61.195 \ L[/tex]

[tex]\Rightarrow \sf V=61.2 \ L \ \ \ (rounded \ to \ nearest \ tenth)[/tex]

Additional Explanation:

In Liters: 61.2 Liters

In cubic meter: 0.061163 m³

In cubic centimeter: 61,163.5 cm³

Answer:

As temperature increases, its solubility increases as well. Notice, however, that it does not increase significantly. In fact, you can expect to be able to dissolve no more than 40 g of sodium chloride per 100 g of water at 80∘C

Explanation:

As temperature increases, its solubility increases as well. Notice, however, that it does not increase significantly. In fact, you can expect to be able to dissolve no more than 40 g of sodium chloride per 100 g of water at 80∘C

Consider substances that can easily diffuse through the lipid bilayer of the cell membrane, such as the gases oxygen (O2) and carbon dioxide (CO2). These small, fat soluble gasses and other small lipid soluble molecules can dissolve in the membrane and enter or exit the cell following their concentration gradient.

Answer:

They both go backward because of force.

Explanation:

The logic behind this answer is that child right and pushes away causing her to go backward meaning her partner is being pushed backwards to.

(Hope this was helpful!)

Answer:

the nucleoid

Explanation:

Answer:

.821 g/L

Explanation:

It does not matter what the gas is, just the number of moles to calculate volume....

Ideal Gas Law :  

PV = n R T       R = gas constant = .082057 L-atm/(mol-K)  &  T in Kelvin units

(1.18)(V) = 5 * .082057 * (25 + 273.15)

V = 103.67 Liters

NOW ...to calculate density, the gas  IS important...

  mole weight of NH3  (from periodic table) =  17.031 gm/mole

Density =  mass / volume    =    (5 * 17.031) / 103.67 L = .821 gm/L

Answer:

C

Explanation:

Actually, arranged to the size of smallest to least atom radius size = C

Atomic sizes generally get smaller as you go from L to R across a row of the periodic table.

The littoral zone of a lake is the area closest to the shore. It has very little biological activity but includes a lot of oxygen. The water in the lake's littoral zone is freshwater, free of living organisms such as plants and fish.

Answer: :Change in thermal energy = mass x specific heat capacity x change in temperature.

Explanation: what it basically means is mass x heat x the change in temperature.

Answer: …

Explanation:

The hypothesis as to why the sisters have different statures occurs because from genetics we know that it is linked to the alleles so one sister is shorter than the other one was they had different alleles.

On average, siblings share about 50% of their DNA with each other, but some siblings share even more and some less. So while we all have approximately 50% DNA from each parent, the segments we end up getting are completely random.

Hereditary character or gene that is manifested by the absence of the opposite gene, called dominant, in this case, Kiera is extremely short for her age.

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Answer:

False; the correct atomic number for lithuim is 3

Explanation:

Answer to back it up

~rere

Answer:

Explanation:

Explanation

There is a Plus charge on one of them (I think it is likely the wool).

There is a minus charge on the other one (So it is cotton most likely.

The point is that like charges repel (move away from each other)

Unlike charges attract. (move close to each other.)

You  have a case of unlike charges attracting.

The Intermolecular force is a type of force which exists between particles in an Ideal gas.

Intermolecular forces are considered weaker attractions that hold molecules in gas close together. This force of attraction is present between molecules or particles.

So we can conclude that the Intermolecular force is a type of force which exists between particles in an Ideal gas.

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The elements that chlorine will most readily bond with are elements found in group one eg sodium, potassium, etc.

Elements are arranged in groups in the periodic table based on their number of valance electrons.

Elements in the same group of the periodic table has similar characteristics.

When metals react with non-metals, electrons are transferred from the metal atoms to the non-metal atoms, forming ions.

The resulting compound is called an ionic compound.

Chlorine is the most reactive non metal and will bond easily with metals. The most reactive metals are found in group one.

Cl⁻ + Na⁺ -------> NaCl

Thus, the elements that chlorine will most readily bond with are elements found in group one eg sodium, potassium, etc.

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Answer:

ester, ether, haloalkane

Explanation:

EDG.2022

Solid-

liquid-

Gas-

Plasma-

Answer:

Gamma rays

Since they have high penetrating power.

Answer:

A

Explanation:

Answer:

A restoration

Explanation:

the action of returning something to a former owner, place, or condition.

If it's not preservation then it's it's reservation.

Answer:

4Fe+3O2- 2Fe2O3

the ratio: 3:2

x:3.95

x=5.92 moles of O2

Answer:

.451 mole

Explanation:

PV = n RT     R = gas constany = .082057 L-Atm/K-mol      T is in units Kelvin

5 *2.32 = n (.082057)(40+273.15)

n=.451 mole