PLEASE HELP!!!!

what happens when the ocean reaches it’s saturation level of carbon dioxide?

Answer:

I ratio is

47 : 43 ratio

Thickness of the fail in millimeter is 0.051mm

Thickness is the quality or state of being thick

Here given data is

aluminum(Al) =  24cm by 31cm

Mass =10.35g

Density = 2.70gcm³

We have to find the thickness of the fail in millimeter = ?

So the formula is

thickness = Volume/surface area

So first we have to calculate volume

Volume = mass/density

Volume = 10.35g/ 2.70gcm³

Volume = 3.83

Then the area of foil is

Area = 24cm×31cm

Area = 744cm²

Thickness = volume/area

Thickness = 3.83/744cm²

Thickness = 0.0051cm = 0.051mm

Thickness of the fail in millimeter is 0.051mm

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Answer:

116.6 lbs

Explanation:

There are 2.2 lbs per Kilogram of weight - and likewise 0.454 Kilograms per pound - but instead of dividing by .454 I multiplied the weight by 2.2 to get 116.6 pounds (of course you could round up and get 117 but 116.6 is a little more accurate).

The weight of the stone in pounds will be 116.8 pounds.

We have a large stone of which weighs 53 Kg.

We have to find its weight in pounds.

In 1 kilogram there are 2.2046 lbs.

According to the question -

Weight of stone in kilograms = 53 Kg

Assume that the weight of stone is equal to A kg. Then -

A = 53 Kg

Now, in order to convert A kg into pounds, we will multiply it by 2.2046.

Therefore, Weight of stone in kilograms is equivalent to = 53 x 2.2046 = 116.8 pounds.

Hence, the weight of the stone in pounds will be 116.8 pounds.

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Answer:

Unlike the speed of your car when running errands, the speed of light is constant throughout the universe and is known to high precision. ... To find the distance of a light-year, you multiply this speed by the number of hours in a year (8,766). The result: One light-year equals 5,878,625,370,000 miles (9.5 trillion km).

Answer:

-Speed of light is the fastest speed ever imaginable. No object having a mass can go faster than light.

Light year is the distance traveled by light, if it moves continuously for 1 whole year, or roughly 365 days.

Explanation:

Answer:

Less than 7

Explanation:

during the titration of strong acid and weak base, the weak base is usually kept in the flask and strong acid is kept in the burette. So when we add strong acid slowly drop by drop, slowly the pH level of solution starts to decrease and at equivalence point the acid overpowers the base as a strong acid was taken over a weak base.

Answer:

The Industrial Revolution

The enthalpy change for the reaction \(C2H4(g) + H2(g) → C2H6(g)\) is -137.15 kJ/mol.

Given:C2H4(g) + H2(g) → C2H6(g)The enthalpy of formation of C2H6(g) is -84.68 kJ mol-1The enthalpy of formation of C2H4(g) is 52.47 kJ mol-1The enthalpy of formation of H2(g) is 0 kJ mol-1Hence, using Hess's Law, the enthalpy change for the reaction \(C2H4(g) + H2(g) → C2H6(g)\) can be calculated by considering the formation of reactants and products from their respective elements. It can be given as:

\($$C_2H_4 + H_2 → C_2H_6$$$$\Delta H = H_f(C_2H_6) - [H_f(C_2H_4) + H_f(H_2)]$$$$\Delta H = -84.68 - [52.47 + 0]$$$$\Delta H = -84.68 - 52.47$$$$\Delta H = -137.15 kJ/mol$$.\)

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The waves that  has the greatest wavelength is Wavelength shown with 1 wavelength stretched over a long distance.

A wave could be a disturbance or variety that voyages through a medium or space, carrying vitality without transporting matter. Waves can take different shapes and happen totally different sorts of waves, counting mechanical waves and electromagnetic waves.

Mechanical waves require a medium to propagate, meaning they require a substance like water, discuss, or a strong fabric to transmit the wave. Illustrations of mechanical waves incorporate water waves, sound waves, and seismic waves. In these waves, particles of the medium sway or vibrate in a design, exchanging energy from one molecule to another.

Electromagnetic waves, on the other hand, don't require a medium and can travel through vacuum, such as in space. Electromagnetic waves comprise of electric and attractive areas swaying opposite to each other and to the heading of wave engendering. Illustrations of electromagnetic waves incorporate obvious light, radio waves, microwaves, infrared waves, bright waves, X-rays, and gamma beams.

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Step 1 - Finding the stoichiometry of the reaction

The given reaction is:

The stoichiometry of the reaction can be found by reading the bigger numbers, those that come before the formulas of the substances:

1 mole of C3H8 react with 5 moles of O2 thus producing 3 moles of CO2 and 4 moles of H2O

Since the exercise is specifically asking us about the proportion between C3H8 and water, we can simplify the statement above to:

1 mole of C3H8 produces 4 moles of H2O

Step 2 - Converting the number of moles of C3H8 to grams

Note that the exercise is asking us about how much water would be produced if we used 43.5 grams of C3H8. For sake of simplicity, let's convert the number of moles of C3H8 to mass (grams).

Converting moles to grams is easy. We just have to multiply the number of moles by the molar mass of the substance (44 g/mol for C3H8):

We can now rewrite the statement in step 1 as:

44 g of C3H8 produce 4 moles of H2O

Step 3 - Finding how many moles of water would be produced

Now we just have to set a proportion:

Therefore, 3.95 moles of H2O would be produced in this reaction.

Based on the table given , the questions can be solved as follows. The atomic mass and percentage abundance of isotopes is given.

       c) (19.992)amu (90.48%) + (20.994amu)(0.27%) +( 21.991) (9.25%)

Which is calculated by formula,

Average atomic mass= m₁P₁+ m₂P₂+ m₃P₃

Where,

m is the Atomic mass

P is percentage composition

Given are the answers estimated by the table in wich Isotope type, atomic masses and percenatage composition of isotopes are given.

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Answer:

I believe it's B

Hope I helped :)

The total mass of the balloon and its content is 1521.17 g, the number of moles of CO₂ in the balloon is 34.15 mol, and the number of CO₂ molecules in the balloon is 2.06 x 10²⁵ molecules.

a) The molar mass of CO₂ is 44.01 g/mol. To find the total mass of the balloon and its content, we need to add the mass of the balloon (20g) to the mass of the CO₂ inside the balloon.

Mass of CO₂ = number of moles of CO₂ x molar mass of CO₂

Since the balloon is at STP (standard temperature and pressure), we can use the molar volume of a gas at STP (22.4 L/mol) to find the number of moles of CO₂ in the balloon:

Volume of CO₂ = Volume of balloon = 765 L (at STP)

Number of moles of CO₂ = volume of CO₂ / molar volume of a gas at STP

                                          = 765 L / 22.4 L/mol

                                          = 34.15 mol

Mass of CO₂ = 34.15 mol x 44.01 g/mol

                       = 1501.17 g

Total mass of balloon and its content = 20 g + 1501.17 g

                                                               = 1521.17 g

b) Number of moles of CO₂ in the balloon is 34.15 mol

c) To find the number of CO₂ molecules in the balloon, we need to use Avogadro's number (6.02 x 10²³ molecules/mol).

Number of CO₂ molecules = number of moles of CO₂ x Avogadro's number

                                           = 34.15 mol x 6.02 x 10²³ molecules/mol

                                           = 2.06 x 10²⁵ molecules

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Answer:

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

\(volume = \frac{mass}{density} \\\)

From the question we have

\(volume = \frac{25}{740} = 0.033788... \\ \)

We have the final answer as

Hope this helps you

Answer:

Neutron

Explanation:

Neutrons has a neutral or no charge.

The distances in light years between both the Sun and the Solar System's planets are listed below. Mercury: 3.33 light minutes 6 light minutes for Venus Planet Earth: 8.3 light minutes Martian: 12,7 light minutes Jupiter: 43 light-minutes

In particular, the distance travelled by electromagnetic waves (with the term light referring to the spectral fraction visible from the human eye) in the vacuum during a sidereal year is described as the length of a light year (365 Days, 6 hours, 9 minutes, and 10 seconds).

In the vacuum, light travels at a speed of 299 792,458 km/s (c). Simply multiply that amount by the time period under consideration to get the distance in miles. 9461 billion kilometres, roughly (or 63 241 times the distance between Earth and the Sun, also called astronomical units, is 149 597 870,700 km).

3,3 light minutes for Mercury

Venus: six minutes of light

8,3 light minutes on Earth

12,7 light minutes for Mars

: 43 light minutes for Jupiter

1,3 light hours for Saturn

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Answer:

1. trigonal-planar

Explanation:

NO3- (nitrate) has three domains around it and each oxygen pushes against each other creating a planar structure.

1. 5005 ml blood is in the body. 2. On average, 68.9gram of blood does the heart pump with each heart beat.

The term density is defined as the ratio of mass and volume. It is represented by the formula density = mass / volume.

Given :

1. Density of blood = 1060 kg/m^3

At a resting pulse rate of 77 beats per minute, the human heart typically pumps about 65 mL of blood per beat. Circulating all the blood in the body through the heart takes about 1 min for a person at rest

Since we are given that heart beats per minute = 77

And Heart pumps about 65 mL of blood per beat

Therefore, blood in the body is 77 × 65 = 5005 ml

2. mass = volume × density

Then,  mass of blood does the heart pump with each heart beat

= volume × density

mass = 65ml × 1060 kg/m^3

mass = 68.9gram

Thus, 1. 5005 ml blood is in the body. 2. On average, 68.9gram of blood does the heart pump with each heart beat.

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a. The rate law for this reaction is: Rate = k[Cl] [H₂]. This means that the rate of the reaction is directly proportional to the concentrations of both Cl and H₂ molecules.

Rate law is an equation that describes the rate of a chemical reaction as a function of the concentrations of reactants. The rate law allows us to describe how the rate of a reaction changes when the concentrations of reactants are changed. It is derived from the rate equation, which is a mathematical expression that can be used to calculate the rate of a reaction from the concentrations of the reactants and the rate constant.

b. The rate law for this reaction is: Rate = k[O] [Os]. This means that the rate of the reaction is directly proportional to the concentrations of both O and Os molecules.
c. The rate law for this reaction is: Rate = k[NO₂]₂. This means that the rate of the reaction is directly proportional to the square of the concentration of NO₂ molecules.

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Complete Question:

Answer:

among these which is not a base is CaSO4

Gaseous compound X is an oxidising agent. X is bubbled through separate solutions of aqueous

potassium iodide and acidified potassium manganate(VII).

Х

Х

aqueous

potassium iodide

acidified potassium

manganate(VII)

Which row shows the colour changes when X is bubbled through these two solutions?

aqueous

potassium iodide

acidified potassium

manganate(VII)

A

brown to colourless

B

brown to colourless

no change

purple to colourless

no change

с

colourless to brown

D

Answer:

The answer is

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

\(volume = \frac{mass}{density} \\ \)

From the question

mass of Mercury = 100 g

density = 13.54 g/mL

The volume of the metal is

\(volume = \frac{100}{13.54} \\ \approx7.38552437...\)

We have the final answer as

Hope this helps you

Answer:

b

Explanation:

wave transfers energy from one place to another

The total pressure in the flask is 0.593 atm.

The total pressure in the flask is calculated as follows:

Moles of methane = 209 mL * 1L/1000 * 1/22.4 L

Moles of methane = 0.00933 moles

Moles of chlorine = 959 mL * 1L/1000 * 1/22.4 L

Moles of chlorine = 0.0428 moles

Chlorine gas is in excess

Moles of methane used = 0.00933 * 0.78

Moles of methane used = 0.00727 moles

Moles of methane left unused = 0.00933 - 0.00727

Moles of methane left unused = 0.00206 moles

Moles of chlorine used = 0.00727 * 3/2 * 0.78

Moles of chlorine used = 0.0109 moles

Moles of chlorine left unused = 0.0428 - 0.0109

Moles of chlorine left unused = 0.0319 moles

Moles of CH₃Cl produced = 0.00727 moles

Moles of HCl produced = 0.00727 moles

Total moles of gas = (0.00206 + 0.0319 + 0.00727 + 0.00727) moles

Total moles of gas = 0.0485 moles

Using the ideal gas equation:

Pressure = nRT/V

where;

n = 0.0485 moles

R = 0.082 L.atm/mol/K

T = 298

V = 2.00 L

Pressure = 0.0485 * 0.082 * 298 / 2

Pressure = 0.593 atm

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The energy required to completely boil a 5.05 g-sample of liquid water at its boiling point is 2.73 kcal.

Boiling is the process in which, upon absorbing energy in the form of heat, a substance goes from the liquid state to the gaseous state.

We have a 5.05 g-sample of liquid water. We can calculate the heat required to completely boil it using the following expression.

Q = ΔH°vap × m

Q = 0.540 kcal/g × 5.05 g = 2.73 kcal

where,

The energy required to completely boil a 5.05 g-sample of liquid water at its boiling point is 2.73 kcal.

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The two ways that a cell's part helps it make materials that it needs include mitochondria changing the energy stored in organic matter into usable forms of energy and DNA providing the instructions for making proteins. Options A and D.

Cells are able to synthesize some of what they need. The materials that cannot be synthesized by cells are obtained from the environments of cells.

One thing that every cell needs is energy. This energy is usually in the form of ATP. An organelle known as mitochondrion is responsible for the breaking of organic materials to unlock their energy and convert it to ATP that can be used by the cell.

Another material that every cell needs are proteins. Proteins are important for normal physiological processes of the cell. The DNA stores the information needed for making these proteins from amino acids.

Thus, energy synthesis by mitochondrion and protein synthesis by DNA represent two ways by which the parts of cells help them make the materials they need.

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Answer:

minimum energy required to to remove the most loosely bound election of an isolated gaseous atom.

Explanation:

The International Union of Pure and Applied Chemistry (IUPAC) provides a standard system for naming organic compounds.

It is essential to learn this nomenclature system to communicate correctly about the chemical structures of compounds and how they relate to each other. Here is the IUPAC name of the following substance.Below is the structure of the given compound: In the given compound, there are four carbon atoms that are connected with single bonds. Carbon atoms are also attached to hydrogen atoms. Since it has four carbons in the main chain, the root name will be "but-". The functional group present in the molecule is the carboxylic acid group (-COOH), which gives the suffix "-oic acid." Therefore, the IUPAC name of the given substance is Butanoic acid.Thus, the IUPAC name of the given compound is Butanoic acid. It is essential to know the IUPAC naming of organic compounds to communicate correctly about the chemical structures of the compounds.

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the ph is gonna be your value and the 4 is gonna be your main subject

so as the ph is your value u gonna ad your ph and 7 and 4 toghter then multiple your answer 2 times  because ph represent multiple and your value