If the particles of matter that make up a substance are relatively far apart and can move freely, the substance is in what state?
gaseous
liquid
solid​

Answer:

157.8 g

Explanation:

Step 1: Write the balanced equation

Fe₂O₃ + 3 CO ⟶ 3 CO₂ + 2 Fe

Step 2: Calculate the moles corresponding to 209.7 g of Fe

The molar mass of Fe is 55.85 g/mol

209.7 g × 1 mol/55.85 g = 3.755 mol

Step 3: Calculate the moles of CO needed to produce 3.755 moles of Fe

The molar ratio of CO to Fe is 3:2. The moles of CO needed are 3/2 × 3.755 = 5.633 mol

Step 4: Calculate the mass corresponding to 5.633 moles of CO

The molar mass of CO is 28.01 g/mol.

5.633 mol × 28.01 g/mol = 157.8 g

Answer:

Partial lunar eclipse.

Explanation:

A lunar eclipse is a cosmological event by which, in the presence of the Earth between the Sun and the Moon, the latter does not receive the light of the Sun in the totality of its visible face, with which a part (or the totality ) of her is in the dark.

Thus, if the lunar eclipse implies an absence of sunlight in the entire lunar surface, the eclipse will be total, while if the eclipse implies an absence of light only in part, the eclipse will be partial (which is the most common event).

Financial goals, current expenses, and income are the creative ways to spend your money.

A budget represents a calculating plan, typically financial but not always, for a specific time frame, typically one year or one month. Predicted sales and revenue amounts, resource quantities (such as time, costs, and expenses), environmental impacts (such as greenhouse gas emissions), other impacts, assets, liabilities, and cash flows are all possible inclusions in a budget.

Budgets are a measurable way for businesses, governments, families, and numerous other organisations to articulate their strategic plans of action.  In a budget, intended expenses are expressed together with suggestions for how to fund them. A budget can show a surplus of resources for later use or a deficit if expenses are greater than income as well as other resources. Financial goals, current expenses, and income are the creative ways to spend your money.

Therefore, financial goals, current expenses, and income are the creative ways to spend your money.

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The decomposition of aspirin (acetylsalicylic acid,\(C_{9} H_{8} O_{4}\)) can occur through the hydrolysis reaction, resulting in the formation of acetic acid (\(CH_{3} COOH\)) and salicylic acid (\(C_{7} H_{6}O_{3}\)).

The decomposition of aspirin (acetylsalicylic acid, \(C_{9} H_{8} O_{4}\)) can occur through the hydrolysis reaction, resulting in the formation of acetic acid (\(CH_{3} COOH\)) and salicylic acid (\(C_{7} H_{6}O_{3}\)). To determine the moles of each product formed, we need to consider the balanced chemical equation for the reaction:

\(C_{9} H_{8} O_{4} = > C_{7} H_{6}O_{3} +CH_{3} COOH\)

From the equation, we can see that for every 1 mole of aspirin, 1 mole of salicylic acid and 1 mole of acetic acid are produced.

Therefore, the moles of salicylic acid and acetic acid formed will be equal to the number of moles of aspirin that decomposes. If we know the amount of aspirin in moles, we can directly calculate the moles of each product based on stoichiometry.

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The arrow in a chemical equation represents the direction of the reaction. It indicates the conversion of reactants into products. The arrow points from the reactant side to the product side, symbolizing the flow of the reaction.

The purpose of the arrow is to visually represent the chemical transformation occurring in the reaction. It shows the relationship between the reactants and products and the direction in which the reaction proceeds. The arrow implies that the reactant molecules are being rearranged and transformed into new substances with different properties.

Chemical equations are used to describe the stoichiometry and balance of reactions. The arrow helps convey this information by illustrating the overall process taking place. It serves as a crucial element in understanding the reaction's composition, reaction conditions, and the substances involved.

Furthermore, the arrow also implies that the reaction can occur in both directions. In reversible reactions, the arrow can be represented as a double-headed arrow, indicating that the reaction can proceed in either direction depending on the conditions.

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O2 is the limiting reagent and yields 20.4g of CO2.

Describe limiting reagent

The limiting reactant, also known as the limiting reagent, is the reactant that is used first during a chemical reaction, hence restricting the amount of product that can be produced.

2C₂H₂ + 5O₂   →  4CO₂ + 2H₂O

Quantity of C2H2 moles:

Moles equal mass divided by molar mass.

13.7 g/26.04 g/mol is the number of moles.

= 0.526 mol.

O2 moles are calculated using the formula: moles = mass / molar mass.

18.5 g/32 g/mol = the number of moles

= 0.578 mol

Produced CO2 mass:

Number of moles times molar mass equals mass.

Mass = 0.4622 mol at 44 g/mol

Mass = 20.328 g

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Answer:

Explanation:

Except on Star Trek (the original there was a creature made of Silicon as a base) every organic compound has Carbon in it and usually hydrogen (but there are exceptions).

Explanation:

To calculate the concentration of the resulting solution, we can use the formula C₁V₁ = C₂V₂, where C₁ is the initial concentration, V₁ is the initial volume, C₂ is the final concentration, and V₂ is the final volume.

Given:

C₁ = 0.2 mg/mL

V₁ = 3.5 mL

V₂ = V₁ + 0.5 mL = 3.5 mL + 0.5 mL = 4 mL (assuming no significant change in volume upon mixing)

Using the formula, we can solve for C₂:

C₁V₁ = C₂V₂

0.2 mg/mL * 3.5 mL = C₂ * 4 mL

0.7 mg = C₂ * 4

C₂ = 0.7 mg / 4 mL

C₂ ≈ 0.175 mg/mL

Therefore, the concentration of the resulting solution is approximately 0.175 mg/mL.

Answer:

The answer is 412

Explanation:

Because we distracted c1 from h2o due to the chemical combination of the two

Answer:

1) Helium

2) Oxygen

3)Carbon

4) Chlorine

5) Magnesium

Explanation:

Helium has the electron arrangement 2, 2. There are two electrons in the first shell and two electrons in the second shell.

Oxygen is the first member of group 16, there are two energy levels in oxygen which are 2,6.

Carbon is in period 2 and is the first member of group 14 (the silicon family).

Chlorine has 7 valence electrons, the electrons are arranged as 2, 8, 7.

Magnesium has 12 protons and 12 electrons. It is the second member of period 3.

The experiment seeks to find out if the seeds take up oxygen as they germinate.

An experiment is carried out in order to  determine cause and effect relationships. The independent variable is the variable that is manipulated in the experiment.

a. The set up B is the control set up

b. The independent variable is the presence/ absence of the seeds while the dependent variable is the color of the solution in both containers.

c. The amount of oxygen in each container can be measured before and after.

d. The hypothesis is that the seeds take up oxygen as they germinate.

Hence, the experiment seeks to find out if the seeds take up oxygen as they germinate.

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Two non-renewable resources are coal and petroleum. A natural resource that cannot be easily replaced by natural means quickly enough to keep up with use is referred to as a non-renewable resource (also known as a finite resource).

A natural resource that cannot be easily replaced by natural means quickly enough to keep up with use is referred to as a non-renewable resource (also known as a finite resource). Fossil fuels made of carbon are one instance. With the use of heat and pressure, the original biological matter transforms into a fuel like petrol or oil. Although individual elements are always conserved, earth minerals and metal ores, fossil fuels (coal, petroleum, and natural gas), and groundwater in some aquifers are all regarded as non-renewable resources (except in nuclear reactions, nuclear decay or atmospheric escape). Coal, crude oil, and natural gas are examples of natural resources that take thousands of years to naturally produce and cannot be replaced as quickly as they are used up.

The remains of animals that have been submerged for millions of years deep within the earth's crust give rise to petroleum.

These species, which include different kinds of plants and animals, progressively dissolved over time.

These remnants turned into petroleum as a result of the intense heat, pressure, and lack of air.

Although petroleum is manufactured over millions of years, we also use it at a faster rate than it is created.

They are therefore non-renewable resources.

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Complete question:

Choose two non-renewable resources from the article and explain why these are non-renewable.​

a) Water

b) Electricity

c) Wind

d) Petroleum

e) Coal

Answer:

Voltage is the measure of electric potential energy per unit charge, current is the flow of electric charge through a circuit, and resistance is the property of a material that opposes the flow of electric current.

Ohm's Law relates these three concepts by stating that current is directly proportional to voltage and inversely proportional to resistance.

Hope this helps!

Answer: NO2

Explanation:

Assume 100 grams of a substance so that %=mass in grams

1.) Convert both into moles of each substance

30.45 g N * (1 mol N/ 14.01 g N) = 2.173 mol of N

69.55 g O * (1 mol O/ 16.00 g O) =4.347 mol of O

2.) divide both by the smallest number of moles, in this case 2.173, to find subscripts of each element.

2.173/ 2.173= 1

4.347/ 2.173= 2

Therefore the empirical formula is NO2

population is the number of species living in a given area if this is regarding biology or earth studies :)

The binding energy per nucleon for the ¹⁹F nucleon is equal to 7.786 MeV/nucleon.

Binding energy can be defined as the minimum quantity of energy that is required to remove the particle from the system. Nuclear binding energy can be described as the energy required to dismantle a nucleus of an atom into free neutrons and protons.

The binding energy will be determined from the mass defect. Mass defect is calculated from the difference between the mass observed and the expected combined mass.

Given the mass of the ¹⁹F = 18.9984 a.m.u.

The mass defect for the ¹⁹F can be calculated as:

Δm = \((M _n +M_p) - M_F\)

\(\triangle m =( 9\times 1.0078 + 10 \times 1.0087 )- 18.9984\)

\(\triangle m =0.1588 \;a.m.u.\)

The binding energy for the fluorine can be calculated as:

E = Δmc²

E = 0.1588 × 931.5

E = 147.92 MeV

The binding energy per nucleon of ¹⁹F can be calculated as:

B.E.N. = 147.92/18.9984 = 7.786 MeV per nucleon

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The kinetic-molecular theory's true assertions are as follows:

If both containers' temperatures are the same, container A will have a higher pressure than container B.

Container A has a lower temperature than container B if the pressure in both containers is equal.

The molecules that make up a gas are always moving randomly, colliding with one another and the container walls, according to the kinetic molecular hypothesis. Remember that high temperature and low pressure are the only conditions in which perfect gases can exist.

The kinetic-molecular theory's true assertions are as follows:

If both containers' temperatures are the same, container A will have a higher pressure than container B.

If both are under pressure

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Answer: 13.23 degrees C

Explanation:

Q= mc(Tfinal-Tinitial)

(Use the specific heat equation)

The final temperature of the water after the absorption of 12.28 kJ of energy has been 13.23 \(\rm ^\circ C\).

Specific heat can be defined as the amount of heat required to raise the temperature of 1 gram of a substance by 1 degree celsius.

The specific heat can be expressed as:

Heat = mass \(\times\) specific heat \(\times\) (Final temperature - Initial temperature)

From the given:

12.28 kJ = 325 g \(\times\) 4.184 J/g\(\rm ^\circ C\) \(\times\) (Final temperature - 4.2 \(\rm ^\circ C\))

12.28 \(\times\) 1000 J = 1,359.8 (Final temperature - 4.2 \(\rm ^\circ C\) )

12,280 = 1,359.8 (Final temperature - 4.2 \(\rm ^\circ C\) )

9.03 = Final temperature - 4.2 \(\rm ^\circ C\)

Final temperature = 13.23 \(\rm ^\circ C\)

The final temperature of the water after the absorption of 12.28 kJ of energy has been 13.23 \(\rm ^\circ C\).

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The reaction order and specific reaction rate constant can be determined by performing the kinetics experiment on irreversible polymerization A. Kinetic experiments can be used to investigate the rate and mechanism of chemical reactions. Chemical kinetics is the study of chemical reactions' speed and pathway.

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A measuring tape. Measure the length and the width along the walls. Multiply those 2. Then, measure the height from floor to ceiling. Multiply the height by the product of length and width.

Calculate the volume by multiplying the measured length and width of the space together, then multiply the result by the height of the room. From the example, 10 * 25 feet = 250 square feet, and 5 * 10 feet = 50 square feet.

Answer:

The correct answer is - the number of moles of solute per liter of solution.

Explanation:

The molar concentration is also known as molarity which is the amount of concentration of a solute is in a chemical solution is the number of moles of solute per unit volume of solution. It is represented as M and can be calculated by:

M = n/v

Where n is the number of moles of the solute and,

v is the volume of solution (in liters normally)

It is worldwide used measurment for the concentration.

According to the Lewis structures, SF₂ is unstable as it has 2 lone pairs of electrons.

Lewis  structures are also called as electron dot structures and can be drawn if the molecular formula of a compound is known. It provides information regarding the nature of bond and the position of atoms .

They are also capable of exhibiting the lone pair if any present in a molecule or compound.Lewis defined a base to be an electron pair donor and an acid to be an electron pair acceptor.

They are capable of reflecting electronic structure of elements and even the pairing of electrons . In the diagram, each dot represents an electron while a pair of dots represent a bond between the atoms.

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Answer: 2.5 lit

Explanation:

Answer:

Nitrite

Explanation:

Nitrous Oxide = N₂O

Nitrite = NO₂

Ammonia = NH₃

Nitrate = NO₃⁻

Answer:Electrical Conductivity,soluble

Explanation:

Salt is a non-magnetic solid and is soluble in water. Sand is a non-magnetic solid and is insoluble in water.

Electrical Conductivity: Salt is an electrolyte and conducts electricity when dissolved in water or in a molten state. This is because salt dissociates into ions (Na+ and Cl-) that can carry electric current. In contrast, sand is a covalent compound and does not conduct electricity, as it does not dissociate into ions in the same way as salt. Sand is considered an insulator in terms of electrical conductivity.

Answer:

1.43 moles N₂

Explanation:

To determine the moles of nitrogen gas (N₂), you need to multiply the given value by the molar mass. The molar mass is a ratio comparing the mass (g) of nitrogen gas per 1 mole. It is important to arrange this ratio in a way that allows for the cancellation of units (grams should be in the denominator). The final answer should have 3 sig figs to match the given value.

Molar Mass (N₂): 2(14.007 g/mol)

Molar Mass (N₂): 28.014 g/mol

 40.0 grams N₂                1 mole
-------------------------  x  ------------------------  =  1.43 moles N₂
                                    28.014 grams

Answer:

Br-CH2-CH(CH3)2-C(Cl)H-CH(CH3)2-CHO

Explanation:

The molecule has a total of 14 carbon atoms, 13 hydrogen atoms, and 1 bromine atom. The carbon atoms are arranged in a chain with a methyl group attached to the second carbon atom, a chlorine atom attached to the third carbon atom, and two methyl groups attached to the fourth carbon atom. The fifth carbon atom has a carbonyl group attached to it.

The molecule is an aldehyde, which means that it has a carbonyl group (C=O) at the end of the chain. The carbonyl group is polar, and the oxygen atom has a partial negative charge. The hydrogen atom has a partial positive charge. This polarity makes the aldehyde group susceptible to nucleophilic attack.

The bromine and chlorine atoms are both electrophilic, which means that they have a partial positive charge. This makes them susceptible to nucleophilic attack.

The methyl groups are non-polar and do not have any significant reactivity.

The molecule is a chiral molecule, which means that it has a mirror image that is not superimposable on itself. This is because the carbon atom with the carbonyl group is attached to four different groups.

The molecule is a liquid at room temperature and has a strong odor. It is used in a variety of products, including perfumes, flavorings, and plastics.

The density of 200 cm^3 of pure water is 200 g / 200 cm^3 = 1 g/cm^3, and  is the same as the density of 1 cm^3 of water.

b. A Corn syrup on top, water in middle, and olive oil on bottom because corn syrup has the highest density of 1.4 g/cm^3, followed by water with a density of 1 g/cm^3, and olive oil with a density of 0.85 g/cm^3.

So option A is correct.

Density is described as the substance's mass per unit of volume.

We were able to determine which substance will stay in its relative position using Archimedes' principle which states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially, is equal to the weight of the fluid that the body displaces.

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