what state is an object in when all forces are balanced

Answer:

m = 19 grams

Explanation:

Given that,

No. of moles, n = 0.8

The molar mass of magnesium, M = 24.305 u

We need to find the mass of 0.80 moles of Mg. We know that given mass to the molar mass is equal to no of moles. Let the mass is m. So,

\(n=\dfrac{m}{M}\\\\m=n\times M\\\\m=0.8\times 24.305 \\\\m=19.444\ \text{grams}\)

or

m = 19 grams

So, the mass of 0.8 moles of Mg is 19 grams.

Yeast

In order to make beer, yeast is necessary, as it consumes sugars and produces ethanol as a waste product.

Yeasts are eukaryotic, single-celled microorganisms classified as members of the fungus kingdom that converts sugars into alcohol and carbon dioxide during the fermentation process in beer. It also adds flavor to different styles of beer. The most common yeast used for beer is Saccharomyces cerevisiae, which can be divided into ale and lager yeasts, depending on whether they ferment on the top or bottom of the wort. Yeast is a source of protein, B vitamins, minerals, and chromium. It has a bitter taste.

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No, the amount given to the policeman at the end of his 10-hour shift, which is 0.4 kg, is not the correct amount based on the payment rate of 1 mole per hour.

To determine if the amount is correct, we need to convert the given mass of 0.4 kg to moles using the molar mass of calcium [40 Ca].

The molar mass of calcium is approximately 40.08 g/mol. Since the atomic mass of calcium is close to 40 g/mol, we can assume that the given molar mass refers to calcium-40, denoted as [40 Ca].

To convert the mass to moles, we can use the formula:

moles = mass (in grams) / molar mass

moles = 0.4 kg * 1000 g/kg / 40.08 g/mol

moles ≈ 9.98 mol

Therefore, the amount of calcium [40 Ca] the policeman received after his 10-hour shift is approximately 9.98 moles, not 1 mole per hour as stated in the payment rate.

Thus, the amount given to him is significantly higher than the correct amount. It appears there may have been an error in the payment calculation or a misunderstanding regarding the payment rate.

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The monosaccharide that all three disaccharides (maltose, lactose, and sucrose) have in common is glucose.

Simple sugars, commonly known as monosaccharides (from the Greek monos: single, sacchar: sugar), are the most fundamental types of sugar and the building blocks (monomers) of all carbs. They are typically crystalline solids, colorless, and soluble in water. Only a small number of monosaccharides have a sweet flavor, despite their name (sugars).

Though not all molecules with this formula are monosaccharides, the majority of them contain the formula CnH2nO n. Monosaccharides include galactose, glucose (dextrose), and fructose (levulose). Disaccharides are produced from monosaccharides.

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Answer:

437 g

Explanation:

as mass = density × volume

Answer:

This is an exothermic reaction. An exothermic reaction is a term that describes a chemical reaction in which there is a net release of energy (heat). Magnesium is also capable of reducing water to the highly-flammable hydrogen gas, which will be ignited by the excess heat given by the reduction reaction.

Explanation:

Answer:

Approximately \(2.53\; \rm L\) (rounded to three significant figures) assuming that \({\rm HCl}\, (aq)\) is in excess.

Explanation:

When \({\rm HCl} \, (aq)\) and \({\rm AgNO_3}\, (aq)\) precipitate, \({\rm AgCl} \, (s)\) (the said precipitate) and \(\rm HNO_3\, (aq)\) are produced:

\({\rm HCl}\, (aq) + {\rm AgNO_3}\, (aq) \to {\rm AgCl}\, (s) + {\rm HNO_3}\, (aq)\) (verify that this equation is indeed balanced.)

Look up the relative atomic mass of \(\rm Ag\) and \(\rm Cl\) on a modern periodic table:

Calculate the formula mass of the precipitate, \(\rm AgCl\):

\(\begin{aligned}& M({\rm AgCl})\\ &= (107.868 + 35.45)\; \rm g \cdot mol^{-1} \\\ &\approx 143.318 \; \rm g\cdot mol^{-1}\end{aligned}\).

Calculate the number of moles of \(\rm AgCl\) formula units in \(45.00\; \rm g\) of this compound:

\(\begin{aligned}n({\rm AgCl}) &= \frac{m({\rm AgCl})}{M({\rm AgCl})} \\ &\approx \frac{45.00\; \rm g}{143.318\; \rm g \cdot mol^{-1}}\approx 0.313987\; \rm mol \end{aligned}\).

Notice that in the balanced equation for this reaction, the coefficients of \({\rm AgNO_3} \, (aq)\) and \({\rm AgCl}\, (s)\) are both one.

In other words, if \({\rm HCl}\, (aq)\) (the other reactant) is in excess, it would take exactly \(1\; \rm mol\) of \({\rm AgNO_3} \, (aq)\!\) formula units to produce \(1\; \rm mol \!\) of \({\rm AgCl}\, (s)\!\) formula units.

Hence, it would take \(0.313987\; \rm mol\) of \({\rm AgNO_3} \, (aq)\!\) formula units to produce \(0.313987\; \rm mol\!\) of \({\rm AgCl}\, (s)\!\) formula units.

Calculate the volume of the \({\rm AgNO_3} \, (aq)\!\) solution given that the concentration of the solution is \(0.124\; \rm mol \cdot L^{-1}\):

\(\begin{aligned}V({\rm AgNO_3}) &= \frac{n({\rm AgNO_3})}{c({\rm AgNO_3})} \\ &\approx \frac{0.313987\; \rm mol}{0.124\; \rm mol \cdot L^{-1}}\approx 2.53\; \rm L\end{aligned}\).

(The answer was rounded to three significant figures so as to match the number of significant figures in the concentration of \({\rm AgNO_3} \, (aq)\!\).)

In other words, approximately \(2.53\; \rm L\) of that \({\rm AgNO_3} \, (aq)\!\) solution would be required.

Answer:

density = 5 g/ml

Explanation:

D=m/v. Mass=30g and Volume=6mL

SO solve for D when m = 30 and v = 6

D=m/v

D = 30/6

density = 5 g/ml

Answer:

Copper

Explanation:

Copper has this electronic configuration.

You can count the total number of electrons

= 29

Cu is the 29 th in the periodic table.( atomic number = 29)

Two or more than two atoms with different physical or chemical properties can not combine together to form an element. Therefore, the given electronic configuration represents copper element.

Element generally consist of atoms or we can atoms combine to form element. Atoms of an element is always same, means all the properties of all atoms of one type of element is same.

The systematic distribution of electrons in the various atomic orbitals is called its electronic configuration. The atomic number of copper is 29. The electronic configuration of copper is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ 3d¹⁰. 1,2,3 represents the number of shells and s and represents the orbitals. The superscripts represents the number of electrons in each orbitals.

Therefore, the given electronic configuration represents copper element.

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The chemical formula of mentioned substances is as follows 1) SO₃ 2) K\(^+\) and NO₃\(^-\) 3) ΔH 4) Cu 5) Hg (l) 6)ZnCl₂.

Chemical  formula is a way of representing the number of atoms present in a compound or molecule.It is written with the help of symbols  of elements. It also makes use of brackets and subscripts.

Subscripts are used to denote number of atoms of each element and brackets indicate presence of group of atoms. Chemical formula does not contain words. Chemical formula in the simplest form  is called empirical formula.

It is not the same as structural formula and does not have any information regarding structure.It does not provide any information regarding structure of molecule as obtained in structural formula.

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The convection current pictured is associated with the sea breeze phenomenon, so the type of wind that is part of this convection current is D Sea Breeze.

Sea breeze is a local wind that is created by the temperature difference between the land and sea surfaces. During the day, the land surface heats up faster than the sea surface. This causes the air above the land to rise, creating a low-pressure area. Meanwhile, the air above the sea remains cooler and denser, creating a high-pressure area. The pressure difference between the land and sea causes air to flow from the sea to the land, resulting in the sea breeze.

In the picture, we can see that the arrows indicate air moving from the sea towards the land. This corresponds to the direction of the sea breeze flow. Therefore, the type of wind that is part of this convection current is D  Sea Breeze.

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Answer: It's B Land Breeze I swear

Explanation: I took the test

The first two chemical equations are reversible while the other two are irreversible.

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

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Answer:

It is less than the density of a solid.

Explanation:

Gases have more volume since the particles are more spread out.

Answer:

Soluble in water

Explanation:

The amount of heat needed to melt 50.0 grams of ice at 0 degrees Celsius is 16,700 J (joules).

To calculate the amount of heat needed to melt 50.0 grams of ice at 0 degrees Celsius, we can use the equation:

Q = m × ΔHf

Where q is the heat, m is the mass, and ΔHf is the heat of fusion.

Given that the mass of ice is 50.0 grams and the heat of fusion of water is 334 J/g, we can substitute these values into the equation:

Q = 50.0 g × 334 J/g

Q = 16,700 J

Therefore, the amount of heat needed to melt 50.0 grams of ice at 0 degrees Celsius is 16,700 J (joules).

During the process of melting, the ice absorbs heat energy from the surroundings. This heat energy is used to break the intermolecular forces holding the water molecules in a solid state, allowing them to move freely as a liquid. The heat of fusion represents the amount of energy required to convert a substance from a solid to a liquid state at its melting point. In this case, the heat of fusion of water is 334 J/g, meaning that it takes 334 joules of energy to melt one gram of ice. Multiplying this value by the mass of the ice (50.0 grams) gives us the total amount of heat needed.

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Answer:

When ions are made of a single atom, such as Li+1, they are called monatomic ions

Explanation:

Any atom or molecule with a net charge, either positive or negative, is known as an ion. An ion consisting of a single atom is a monoatomic ion; an ion consisting of two or more atoms is referred to as a polyatomic ion.

Carbon in the atmosphere is most often found as carbon dioxide (CO2).

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Hydrogenated compounds, particularly hydrogen gas (H2), are often considered as potential fuels for spark ignition engines.

Hydrogenated compounds are considered the most suitable fuels for spark ignition engines because hydrogen is a highly flammable gas with a low ignition energy and a wide flammability range. When compared to gasoline or diesel, hydrogen has a higher energy content by weight, which makes it an attractive fuel choice.

Due to increasing temperature, the chemical reaction rate also increases as the element moves from a solid to a liquid to a gas.Physical state transitions are dependent on temperature, and the rate of chemical reactions that occur as a result of these state transitions is also influenced by temperature.

At higher temperatures, the chemical reaction rate typically rises as molecules have more kinetic energy and collide with one another more frequently.

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Answer:

Chemical bonding, any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world.

Explanation:

Have a nice day:)

Answer: A connection between two surfaces or objects that have been joined together, especially by means of an adhesive substance, heat, or pressure.

Explanation: The bond may result from the electrostatic force or attraction between oppositely charged icons as in iconic bonds or through the sharing of electrons as in covalent bonds.

Answer:

the ability to breed successfully

Explanation:

Answer:

the ability to breed successfully

Explanation:

the more offspring's an organism has, the less chance of extinction would happen. I hope that helped bestie

Answer:

3. A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance

4.extensive and intensive properties.

Answer:

The mass is 20, 89 grams of He.

Explanation:

We calculate the weight of 1 mol of He, from the atomic weight of each element obtained from the periodic table: Weight 1 mol He= 4, 0020602 g. 1 mol He-----4, 0020602 g. 5,22 mol He---x= (5,22 mol He x4, 0020602 g)/ 1 mol He= 20, 89 g

hope this helps also can i get brainliest

The mass of 5.22 mol of He will be 20.84 grams.

We have 5.22 mol of He.

We have to calculate its Mass.

Helium is a chemical element with the symbol He and atomic number 2. It is a gas which is colorless, odorless, tasteless, non-toxic, inert and monatomic.

According to the question -

Number of moles of Helium = 5.22 mol

Now, I mole of Helium will have its mass equal to its Atomic weight. Therefore -

Mass of 1 mole of He = 4.002602 g

So, the mass of 5.2 mol of He will be = 5.2 x 4.002602 = 20.84 grams

Hence, the mass of 5.22 mol of He will be 20.84 grams.

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Answer

Explanation:

Magnesium Oxide has a formula of MgO.

Magnesium has a molar mass of 24.30g/mol and Oxygen has a molar mass of 15.99g/mol.

From this, we can say we are assuming a 1 mole sample of magnesium oxide, as the stoichiometric coefficients will always be the same, as will the ratio of oxygen to magnesium.

From this,

\(15.99g/mol *1 mol MgO = 15.99 gOxygen\\24.30g/mol *1molMgO=24.30gMagnesium\\Oxygen mass percent = 15.99/(15.99+24.30) = .396\)

The Magnesium equation will be the same but a different numerator. Notice, if there were different coefficients on the elements, you would have to multiply by the stoich coefficient.

Answer:

V = 0.0496 L

Explanation:

Given that,

The mass of a sample, m = 352.2 g

The density pf sample, d = 7.10 g/mL

We need to find the volume of the sample. We know that the density of an object is given by :

\(d=\dfrac{m}{V}\\\\V=\dfrac{m}{d}\\\\V=\dfrac{352.2}{7.1}\\\\V=49.6\ mL\)

or

V = 0.0496 L

So, the volume of the sample is 0.0496 L.

The number of moles of gas is the same on both sides, the change in volume will not affect the equilibrium position of the reaction. The answer is B) There is no change because there are the same number of moles of gas on both sides.

To determine the change that will occur when the container is shrunk from 9.0 L to 3.0 L for the given reaction:

51.8 kJ + H₂(g) + I₂(g) → 2HI(g)

We need to consider the number of moles of gas on each side of the reaction.

On the left side, there are 2 moles of gas (H₂ and I₂), while on the right side, there are 2 moles of gas (2HI). Both sides have an equal number of moles of gas.

Therefore, the correct answer is B) There is no change because there are the same number of moles of gas on both sides.

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Answer:

D .diet soda may increase the risk of disease

Answer:

It's Diet soda may increase the risk of disease.

Explanation:

Answer:

1043

Explanation:

Convert 104.3 Centimeter to Millimeters (cm to mm) with our conversion calculator and conversion tables. To convert 104.3 cm to mm use direct conversion formula below.

104.3 cm = 1043 mm.

Answer:

1043

Explanation:

Multiply 104.3 by 10

The molecular formula of a cycloalkane with six carbon atoms, also known as cyclohexane, is C6H12.

Cycloalkanes are cyclic hydrocarbons that consist of carbon atoms arranged in a ring, with each carbon atom bonded to two other carbon atoms and two hydrogen atoms. Cycloalkanes are saturated hydrocarbons, meaning that they contain only single covalent bonds between the carbon atoms and hydrogen atoms, and have the general formula CnH2n. Cycloalkanes are relatively stable compounds and can be found in many natural products, such as steroids, and alkaloids. They are also used in various applications, such as solvents, fuels, and lubricants.

Therefore, the correct answer is B. C6H12.

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