If an atom has an atomic mass of 19 and an atomic number of 9, how many protons, neutrons and electrons does it have?

To calculate the volume of seawater displaced by the ship, we need to convert the weight of the ship from tons to pounds and then use the cc to determine the volume.

Given:

Weight of the ship = 4655 tons

Density of seawater = 1.025 g/cm³

1 ton = 2000 lb

First, we convert the weight of the ship from tons to pounds:

Weight of the ship in pounds = 4655 tons × 2000 lb/ton = 9,310,000 lb

Now, let's calculate the volume of seawater displaced in cubic feet:

Density is defined as mass per unit volume. Since the density of seawater is given in grams per cubic centimeter (g/cm³), we need to convert it to pounds per cubic foot (lb/ft³) to match the units of weight.

Density of seawater in lb/ft³ = 1.025 g/cm³ × (1 lb / 453.592 g) × (100 cm/1 m)³ × (1 m/3.281 ft)³ = 64.048 lb/ft³

The weight of the ship is equal to the weight of the displaced seawater. So, we can equate the weight and use the density to calculate the volume: Weight of displaced seawater = Volume of seawater × Density of seawater

Volume of seawater = Weight of the ship / Density of seawater

= 9,310,000 lb / 64.048 lb/ft³

= 145,392.6 ft³

Therefore, the ship will displace approximately 1.453926 × 10^5 cubic feet of seawater.

Learn more about density of seawater here

https://brainly.com/question/32227296

#SPJ11

Answer:

15 amu.

Explanation:

I looked it up on google.

Answer:

the coefficients for HgO2 Hg+O2

Explanation:

the coefficient is 2

Hg= mercury element 80 aka quick silver

O2=oxygen can not have less than 2 atoms or it will be unstable so it forms a bond between the 2 oxygen atoms  

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.

Learn more about chemical equations,here:

https://brainly.com/question/19626681

#SPJ1

Answer:

N, P, As, Sb

Explanation:

Elements present in the same group having same number of valence electrons. The first option is correct from given options because nitrogen, phosphorus, arsenic and antimony are present in same group thus having same number of electrons in outer most  energy level.

Electronic configuration of N:

N₇: [He] 2s² 2p³

Electronic configuration of P:

P₁₅: [Ne] 3s² 3p³

Electronic configuration As:

As₃₃: [Ar] 3d¹⁰ 4s² 4p³

Electronic configuration Sb:

Sb₅₁: [Kr] 4d¹⁰ 5s² 5p³

Here it is clear from electronic configuration all these elements have five number of valence electrons.

Answer:

43 protons and 99 neutrons.

Explanation:

The goal of adding water and filtering the mixture is to separate the two solids based on their physical properties, such as size, density, and solubility. This process is effective for separating mixtures of solid particles that have different physical properties, and can be used in various industries, including mining, food processing, and chemical production.

The final steps to separate two solids by adding water and then filtering the mixture are as follows:

1. Add water to the mixture to create a slurry or suspension. The amount of water added should be enough to fully wet the solids and create a uniform mixture.

2. Stir the mixture thoroughly to ensure that the solids are fully suspended in the water.

3. Allow the mixture to settle for some time. The heavier solid particles will settle to the bottom of the container due to gravity, while the lighter particles will float on top of the water.

4. Once the solids have settled, carefully pour off the liquid (or decant) without disturbing the settled solids.

5. Next, use a filter to separate the solids from the remaining liquid. A filter can be made of paper, cloth, or a porous material that allows the liquid to pass through but retains the solid particles.

6. Collect the filtered solids on the filter, and allow them to air dry or dry in an oven at a low temperature.

7. Once the solids are dry, they should be weighed to determine their mass and purity.

Learn more about suspension here:

brainly.com/question/29199641

#SPJ11

The 100 grams of ice at 0 °C is placed in 500 grams of water at 50 °C.  the final temperature is 29 °C .

The specific heat equation is given as :

q = mc ΔT

specific heat of water , c = 4.18 J/g °C

q = n ΔHfusion

heat of fusion of water = 6.01 kJ /mol

moles of water in 100 g of water = 100 / 18 = 5.55 mol

heat needed from solid 0 °C to liquid 0 °C .

q1 = 5.55 × 6.01 = 33.36 kJ

therefore, q1 + q2 = - q3

33.36 + mc ΔT = - mc ΔT

33.36 + 100 × 4.18 (T - 0) = - 500 × 4.18 (T - 25)

33.36 + 418 T = - 2090  ( T - 25 )

33.36 + 418 T = -2090 T + 52250

2508 T = 52216.6

T = 29 °C

Thus,  The 100 grams of ice at 0 °C is placed in 500 grams of water at 50 °C.  the final temperature is 29 °C

To learn more about specific heat here

https://brainly.com/question/11297584

#SPJ4

There are approximately 11.78 grams of oxygen gas (O2) in 8.25 L at STP.

To calculate the number of grams of oxygen gas (O2) in 8.25 L, we need to use the ideal gas law which states:

PV = nRT

Where;

Assuming standard temperature and pressure (STP) conditions (0°C and 1 atm), we can use the molar volume of a gas at STP, which is 22.4 L/mol, to calculate the number of moles of oxygen gas in 8.25 L:

n = (V / V_m) = (8.25 L) / (22.4 L/mol) = 0.3683 mol

The molar mass of O2 is approximately 32 g/mol, so we can calculate the number of grams of oxygen gas in 0.3683 mol:

mass = n x molar mass = 0.3683 mol x 32 g/mol = 11.78 g

Learn more about mass of oxygen here: https://brainly.com/question/12902286

#SPJ1

Answer:

When the silver-colored penny is heated, the outside zinc atoms and inside copper atoms move around because of the heat excitement. This makes the outer layer of zinc mix with the copper below, which becomes an alloy called yellow brass

Explanation:

Burning fossil fuels releases oxides of sulfur and nitrogen which can contribute to air pollution. So the release of oxides of sulfur and nitrogen from burning fossil fuels can lead to negative impacts on humans.

Burning fossil fuels releases oxides of sulfur and nitrogen, which can have negative impacts on both human health and the environment. These pollutants can react with other chemicals in the atmosphere to form acid rain, which can damage crops, forests, and bodies of water. Sulfur dioxide, in particular, can cause irritation to the eyes, nose, and throat, and can aggravate existing respiratory conditions like asthma. Nitrogen oxides can also contribute to the formation of fine particulate matter, which can cause respiratory and cardiovascular problems.

Learn more about fossil fuels: https://brainly.com/question/10172005

#SPJ11

Answer:

so the order is grass, which gets eaten by the grasshopper, which is eaten by the frog, which gets eaten by the snake. grass wpuld be at top, snake at bottom.

Explanation:

hope this helps

In an ecosystem, the first trophic level is for grass followed by , grasshopper,snake and  then frog.

An ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.

Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by  action of microbes nutrients are released back in to the soil.

Learn more about ecosystem,here:

https://brainly.com/question/13979184

#SPJ7

The reaction between pottasium metal and chlorine gas is an example of combination reaction and the balanced equation is as follows: 2K + Cl₂ → 2KCl

A chemical equation is a symbolic representation of a chemical reaction where reactants are represented on the left, and products on the right.

A chemical equation is said to be balanced when the number of atoms of each element on both sides of the equation are the same.

According to this question, potassium metal reacts with chlorine gas to form solid potassium chloride. The balanced equation is as follows:

2K + Cl₂ → 2KCl

Based on the above equation, pottasium combines with chlorine chemically to form pottasium chloride compound, hence, it is an example of combination reaction.

Learn more about combination reaction at: https://brainly.com/question/32027270

#SPJ1

A 1. 00 ml sample of an unknown gas effuses in 11. 1 min. an equal volume of h2 in the same apparatus under the same conditions effuses in 2. 42 minutes then the molar mass of the unknown gas is 41.9.

Molar mass of H2 = 2

Molar mass of unknown gas = ?

rate 1 = 11.1

rate 2 = 2.42

Graham's law states that the rate of diffusion or effusion of a given gas is inversely proportional to the square root of its molar mass.

By apply graham law

Rate1/rate2 = sqrt(MW2/MW1)

\([\frac{rate1}{rate2} ]^{2} = \frac{MW2}{2} \\\\\\mw= 2[\frac{11.1}{2.42} ]^{2} \\\\= 20.97 X 2 \\\\= 41.9\)

Thus, we found that the molar mass of the unknown gas is 41.9.

Learn more about graham's law: https://brainly.com/question/12415336

#SPJ4

The enthalpy of the reaction is 14 J/mol.

The enthalpy of a reaction (ΔH) is the amount of energy transferred between a system and its surroundings during a chemical reaction at constant pressure, measured in joules per mole (J/mol). This value is important because it can tell us whether a reaction is exothermic or endothermic, as well as give us information about the strength of chemical bonds within the reactants and products.To calculate the enthalpy of a reaction, we need to know the amount of energy released or absorbed (Q) and the number of moles of the compound involved in the reaction (n). We can use the equation:
ΔH = Q/n
Given that 6 moles of a compound produce 84 J of energy, we can calculate the enthalpy of the reaction as follows:
ΔH = Q/n
ΔH = 84 J / 6 mol
ΔH = 14 J/mol
This means that for every mole of the compound involved in the reaction, 14 J of energy is transferred between the system and the surroundings. Since the value is positive, we can conclude that the reaction is endothermic, meaning that it requires an input of energy to occur.It is worth noting that the enthalpy of a reaction can depend on a number of factors, such as temperature, pressure, and the specific conditions under which the reaction occurs. As such, it is important to take these factors into account when calculating or predicting enthalpy values.

for such more questions on enthalpy

https://brainly.com/question/14047927

#SPJ8

Answer:

Sorry I can't see which molecules you are talking about

Answer:

polysaccharides

Explanation:

- Nucleic acid contain nitrogens

- based protein contains nitrogen

-in amino acid lipid lack nitrogen

Answer:

Due to friction force

Explanation:

thank me later

Answer: friction

Explanation:

MgBr2 decomposes into magnesium and bromine:

MgBr2 → Mg + Br2

AlCl3 decomposes into aluminum and chlorine:

2 AlCl3 → 2 Al + 3 Cl2

H2O decomposes into hydrogen and oxygen:

2 H2O → 2 H2 + O2

Kl decomposes into potassium and iodine:

2 Kl → 2 K + I2

CaO decomposes into calcium and oxygen:

CaO → Ca + 1/2 O2

Conclusively,  the coefficient of O2 in the balanced equation for the decomposition of CaO is 1/2 because oxygen exists as a diatomic molecule (O2).

Learn more about Decomposition reaction  from

https://brainly.com/question/27300160

#SPJ1

Answer:

Pure Water  

Explanation:

Battery acid is well and acid

Bleach is a base

Ocean water is impure so it could lean either way

Answer:

5 x 6.022 x 10²³ atoms

Explanation:

There are 5 different atoms that make up a CaCO3 molecule, and since one mole of something is 6.022 x 10²³, there are 5 times that amount of atoms.

630°C of temperature must be attained by the gases.

Gay-law Lussac's which was found in 1808 and published in 1809, is the term used to describe Joseph-Louis Gay-law Lussac's of combining volumes of gases. It can also describe the relationship between a gas's volume and absolute temperature under constant pressure. Simple whole numbers can be used to indicate the volume ratio of the reactant gases to the gaseous products.

This is an illustration of Gay-Law Lussac's since the volume is constant but the pressure and temperature are changing:

\(P1/T1=P2/T2\)

The formula above may be rearranged to yield

T2=T1*P2/P1

Your data include:

P1=206. 843 kPa

T1=(27+273.15)K=300.15K

P2= 620. 528 kPa

T2=?

T 2 = 300.15 K* 620. 528 kPa/ 206. 843 kPa= 900.45K = 627.3 °C

Near to 627.3 °C the temerature is 630 °C

learn more about Gay-law Lussac's Refer:brainly.com/question/2683502

#SPJ4

Answer:

measuring the isotopic composition of atmospheric co2 shows that the burning of fossil fuels has led to the co2 levels over the last 200 years.

Explanation:

pa brainliest po ty

Yes, The car will accelerate if its velocity changes in magnitude, in direction, or both. If a car is traveling at a constant speed of 35 m/s, it can be accelerating if its direction of motion is changing.

Answer:

okay no problem I will be there

Answer:

A thermochemical equation for the combustion of propane (C3H8)(C3H8) is written as follows:

C3H8(l)+5O2(g)→3CO2(g)+4H2O(g);ΔH∘rxnC3H8(l)+5O2(g)→3CO2(g)+4H2O(g);ΔHrxn∘ = -2202.0 kJ/mol

The value given for ΔH∘rxnΔHrxn∘ means that:

a. the reaction of one mole of propane absorbs 2202 kJ of energy from the surroundings.

b. the reaction is endothermic.

c. the enthalpy of formation of propane is 2202 kJ/mol.

d. the reaction of one mole of propane releases 2202 kJ of energy to the surroundings.

e. None of these.

Answer:

A) Shaken is the correct answer

Explanation:

The other three don't fit in with the solution if you think about it. When you shake something with lemonade crystals (Like a lemonade flavor packet in poured in a water bottle) it dissolves faster when you shake it rather than it sit on the bottom for 15 minutes! :) .

Hope this helps! :)

Answer:

The Person above me is correct

Explanation:

I got it right first try 100%

Answer:

La masa molar de la sustancia disuelta es de aproximadamente 138,473 g/mol

Explanation:

Los parámetros dados son;

La masa de benceno en el recipiente = 100 gramos

La masa de benceno que se evapora del benceno puro = 1.273 gramos

La masa del soluto no volátil disuelto en 100 gramos de benceno = 10 gramos

La masa de benceno que se evapora de la mezcla = 1.205 gramos

Según la ley de Raoult, tenemos;

\(P_ {solucion} = P_ {solvente} \times X _ {solvente}\)

Dónde;

\(P_ {solucion}\) = La presión de vapor de la solución.

\(P_ {solvente}\) = La presión de vapor del solvente

\(X_ {solvente}\) = La fracción molar del solvente

Por lo tanto;

\(X_ {solvente} = \dfrac {P_ {solucion}} {P_ {solvente}}\)

Según la ley de los gases ideales, tenemos;

\(P \times V = n \times R \times T = \dfrac{m}{M} \times R \times T\)

Dónde;

P = La presión del gas

V = El volumen ocupado por el gas

m = La masa del gas

M = La masa molar del gas

R = La constante universal de los gases

T = La temperatura del gas

n = El número de moles del gas

Por lo tanto;

\(P = \dfrac{m \times R \times T}{M \times V}\)

Donde R, T, M y V son constantes, tenemos P ∝ m

\(\therefore X_ {solvente} = \dfrac {P_ {solucion}} {P_ {solvente}} = \dfrac {Masa \ evaporada \ de \ solucion} {Masa \ evaporada \ de \ solvente} = \dfrac {1.205 \ g} {1.273 \ g} \approx 0.9466\)

\(X_ {solvente}\) ≈ 0.9466

\(X_ {solvente} = \dfrac {El \ numero \ de \ moles \ del \ solvente} {El \ total \ numero \ de \ moles \ de \ la \ solucion}\)

El número de moles del solvente, C₆H₆ = (Masa de C₆H₆) / (La masa molar de C₆H₆) = 100 g / (78.11 g.mol) ≈ 1.28025 moles

El número de moles del solvente, C₆H₆ ≈ 1.28025 moles

El número total de moles = El número de moles del solvente, C₆H₆ + El número de moles del soluto no volátil, \(n_ {soluto}\)

\(\therefore X_ {solvente} = 0.9466 = \dfrac {1.28025 \ moles} {1.28025 \ moles + n_ {soluto}}\)

0.9466 × (1.28025 moles + \(n_ {soluto}\)) = 1.28025 moles

1.21189 moles + 0.9466 × \(n_ {soluto}\) = 1.28025 moles

\(n_ {soluto}\) = (1.28025 - 1.21189)/0.9466 moles ≈ 0.07221635 moles

\(\therefore \dfrac {Masa \ de \ soluto} {Molar \ masa \ de \ soluto} = \dfrac {10 \ g} {Molar \ masa \ de \ soluto} \approx 0.07221635 \ moles\)

\(\ Masa \ molar \ de \ soluto = \dfrac {10 \ g} {0.07221635 \ moles} \approx 138.473 \ g / moles\)

La masa molar de la sustancia disuelta (el soluto) ≈ 138,473 g/mol