Describe the motion of a person NOT wearing a seat belt if the car stops suddenly

A the person and car will stop together
B the person will stop faster than the car because they are lighter
C the car will stop and the person will keep moving forward
D the car will stop and the person will speed up

K and Br

Ionic bonds form through the transfer of electrons.

Ionic Bonds

Ionic bonds form when 2 atoms or molecules transfer electrons between each other. This transfer of electrons changes the atoms into ions. Ions are charged particles, and where ionic bonds get their name from. In an ionic bond, one atom will lose electrons and become positively charged; this particle is known as a cation. The atom that gains electrons and becomes negatively charged is known as an anion.

Identifying Ionic Bonds

One of the easiest ways to identify an ionic bond is by identifying the types of atoms that are bonding. In most cases, when a metal and nonmetal bond, an ionic bond will form. This is due to the large difference in electronegativity between metals and nonmetals. This leads to the metal being a cation and the nonmetal being an anion. Since K (potassium) is a metal and Br (bromine) is a nonmental, they will form an ionic bond.

To find metals and nonmetals we can look at the periodic table. Metals are on the left side of the table and make up the majority of the elements. Nonmetals are on the right side of the table.

Answer:

If n = 4, then the possible values of 1 and m depend on the equation or expression being used. Without more information, it is impossible to determine what the possible values of 1 and m might be. Can you please provide more context or information about the problem you are trying to solve?

Answer:

The structural formula for diethylamine is C4H11N

Explanation:

Answer:

Option B, hardware and software

Explanation:

Cayce is using some tool in the computer to draw the poster which is an indicative of her using the software. But then she takes the print of her poster through a printer which is an indicative of her using a hardware.

Hence, Option B is correct

Ethanol (C2H6O), an alcohol has a much higher boiling point than dimethyl ether (C2H60) because hydrogen bonds found in the former are typically much stronger attractions than ordinary dipole moments in the latter.

This is referred to as the temperature at which the vapor pressure of a liquid equals the pressure surrounding the liquid and the liquid changes into a vapor.

Ethanol (C2H6O), an alcohol has a much higher boiling point than dimethyl ether (C2H60) because hydrogen bonds have a stronger attraction which  makes it more difficult for the atoms to be broken down hence the reason why the boiling point will be higher in this scenario.

Read more about Boiling point here https://brainly.com/question/24675373

#SPJ1

Answer:

Limiting reactant

Explanation:

The limiting reactant is completely is completely consumed in a reaction since it's not in excess and does not give a good yield of the product hence an excess reactant must have reacted with limiting reactant.

Answer:

10.53m/s

Explanation:

Initial velocity: 13m/s

Angle of projection: 55deg

Y-component of velocity is given as usin⌀

Plugging in, we get

= 13 * sin(55deg)

= 13 * 0.81

= 10.53

⇒ 10.53m/s

Answer:

cool or increase pressure

Explanation:

Answer:  343 Celsius

Explanation:

Gay lussac law

T2=T1V2/V1  Temp must be in Kelvin

T2= 308.15 X 9.00 / 4.50 =616.30 K - 273.15 to get back in celsius

=343.15 C

Answer:

\(m=173.58g\)

Explanation:

Hello,

In this case, since the density is the ratio of the mass and volume:

\(\rho =\frac{m}{V}\)

For the given density and volume, the correct mass which fills the given volume is:

\(m=\rho *V=0.789g/mL*220mL\\\\m=173.58g\)

Best regards.

Answer:

False transverse waves move up and down while water waves move in circles

Explanation:

transverse waves move up and down while water waves move in circles

Answer:

I think it's True

Explanation:

Water waves are an example of waves that involve a combination of both longitudinal and transverse motions. A Transverse waves A longitudinal wave is a wave in which particles of the medium move in a direction parallel to the direction that the wave moves while water waves move in a circle in a left to right clockwise direction.

An ionic equation for sodium hydroxide and calcium carbonate is Na⁺ + OH⁻ + Ca²⁺ + CO₃²⁻\(\rightarrow\)Na⁺ +CO₃²⁻ + Ca²⁺ + OH⁻.

Ionic equation is defined as a chemical equation which represents electrolytes in aqueous solutions and are expressed as dissociated ions. Ions present in aqueous solutions are stabilized by ion dipole interactions with the water molecules which are present.

An ionic equation can be written for any electrolyte which dissociates and reacts with the polar solvent. In a balanced ionic equation , number and type of atoms on each sides of reaction arrow are same. Even the net charge on both sides of the arrow is same.

Learn more about ionic equation,here:

https://brainly.com/question/15466794

#SPJ9

Answer:Biopolymer: the monomeric amino acids are linked through an

amide bond (the carboxylic acids of one AA with the α-amino

group of a second)

Explanation:

In this reaction, elimination of water molecule takes place, therefore this reaction is elimination reaction. So, option C is correct.

In a one- or two-step method, two substituents are removed from a molecule in an organic reaction known as an elimination reaction. The E2 reaction is the name given to the one-step mechanism, and the E1 reaction to the two-step mechanism.

Dehydration and oxidation are the two basic techniques used in this kind of process. Dehydrohalogenation. Because it allows us to remove one of the variables and answer a more straightforward equation.

The halogenoalkane and either sodium or potassium hydroxide solution are the same chemicals you use for replacement or elimination.

Thus, option C is correct.

To learn more about elimination reaction, follow the link;

https://brainly.com/question/8739887

#SPJ2

The strand 1 of hydrocarbons is used to produce plastic, hence option D is correct.

Raw resources like natural gas, oil, or plants that have been processed into ethane and propane are used to make plastics. The subsequent "cracking" procedure uses heat to transform ethane and propane into ethylene and propylene. To produce various polymers, these components are mixed.

Propylene is a substance found in large quantities in petroleum. In order to speed up chemical processes, refiners combine heated propylene with a catalyst to create plastic. Propylene molecules start to cluster together like beads on a thread as a result.

Learn more about plastic, here:

https://brainly.com/question/28420086

#SPJ1

Answer:

2.4 × 10⁻⁴ M/s

Explanation:

Step 1: Given data

Step 2: Convert the time to seconds

We will use the relationship 1 min = 60 s.

\(1.5min \times \frac{60s}{1min} =90s\)

Step 3: Calculate the rate of the reaction

Since A is a reactant, we will calculate the rate of the reaction (r) using the following expression.

\(r=-\frac{\Delta [A]}{t} =-\frac{[A]-[A]_0}{t} =-\frac{0.032M-0.054M}{90s} =2.4 \times 10^{-4} M/s\)

The rate of percolation of water into the soil will be 0.125 mL per second

The rate of percolation of water into the soil is determined by the volume of water that enters the soil per unit of time under specific conditions.

In this case, 750 mL of water percolated in 100 minutes.

100 minutes = 100 x 60 = 6,000 seconds

Percolation rate = 750/6000 = 0.125 mL per second

More on percolation rate can be found here: https://brainly.com/question/16882186

#SPJ1

If you look at the six solutions, ammonium chloride is the one that will separate barium ion from lead (II) ion in water.

If you want to separate things in a solution, you can use a solution that preferentially precipitates one of the ions in the solution while leaving the other one in the solution.

Here, we know that chlorides are soluble except those that come from metals like gold and silver because of the rules about which ones can be soluble. This is why, when barium ion and lead (II) chloride are mixed together in water, lead II chloride preferentially precipitates. This means the ions are separated.

I hope this helps you

:)

An unknown solution, which contains both aqueous barium ion, Ba2+ (aq), and aqueous lead(II)ion, Pb2+ (aq). Therefore, option A, D and E are correct.

The maximum quantity of a chemical that will dissolve in a given amount of solvent at a particular temperature is referred to as its solubility. Different compounds have very varying solubilities, which is a feature of a particular solute-solvent pair.

According to solubility rules

1.Li+, Na+, K+, NH4+ always soluble .

2.NO3-, C2H3O2-  always soluble .

3.Cl- , Br-, I- insoluble with Ag+, Hg22+, Pb2+  but soluble with any other ions.

4.SO4- soluble with all the ions except Sr2+, Ba2+, Ca2+, Ag+, Hg22+, or Pb2+.

5. CO32-, PO43- soluble with  Li+ , Na+, K+, NH4+ but insoluble with any other ion.

6.OH- , S2- soluble with Ca2+ , Sr2+ , Ba2+ , Li+ , Na+ , K+ , NH4+ but insoluble with any other ions.

In NH4Cl, cl- ions make precipitate with Pb2+ but not with Ba2+.So, they are separated.

In NaCl, cl- ions make precipitate with Pb2+ but not with Ba2+. So, they are separated.

In NaOH, OH- ions make precipitate with Pb2+ but not with Ba2+.So, they are separated.

Thus, option A, D and E are correct.

To learn more about the solubility, follow the link;

https://brainly.com/question/29661360

#SPJ2

Your question is incomplete, most probably your question is attached below in image.

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 two chemical compounds are not the same, because their ratio is not equal. In both samples the composition of lead and oxygen is different.

A chemical compound is a substance made of numerous similar molecules (or molecular entities) joined by chemical bonds and comprising atoms from various chemical elements. Therefore, a molecule made up of only one type of atom is not a compound. Chemical reactions, which may entail interactions with other molecules, can change a compound into a distinct substance. Atomic bonds may be broken or new ones created during this process.

sample 1 = mass of lead / mass of oxygen = 12.92g/2g = 6.46 .

sample 2 = mass of lead/ mass of oxygen = 34.27 - 14.39/14.39 = 1.38 .

so, the ratios are not the same.

Hence, the two chemical compounds are not the same, because their ratio is not equal. In both samples the composition of lead and oxygen is different.

To know more about Chemical compounds, check out:

https://brainly.com/question/26487468

#SPJ1

1. The volume of the stock solution needed is 0.008 L

2. The concentration of the diluted solution is 0.52 M

1. How to determine the volume of the stock solution

We can obtain the volume of the stock solution as follow:

M₁V₁ = M₂V₂

7 × V₁ = 0.480 × 0.120

5 × V₁ = 0.0576

Divide both side by 7

V₁ = 0.0576 / 7

V₁ = 0.008 L

Thus, the volume needed is 0.008 L

2. How to determine the concentration of the diluted solution

We can obtain the concentration of the diluted solution as follow:

C₁V₁ = C₂V₂

7 × 20 = M₂ × 270

140 = M₂ × 270

Divide both side by 270

C₂ = 140 / 270

C₂ = 0.52 M

Thus, the concentration is 0.52 M

Learn more about dilution:

https://brainly.com/question/15022582

#SPJ1

Answer:

I think it's B

Explanation:

I dont have much experience with the periodic table, but I just think its B.

Answer:

it's either B or C

Explanation:

I don't have that much experience for this but im giving you my honest answer i hope this will help ;3

The energy in joules of one mole of photons of visible light having a wavelength of 4.11×10^2 nm? can be expressed as 2.9*10^5 J

From the question we were told to find the energy and the parameters that is needed to calculate these are;

c=3*10^8

h= 6.626 * 10^-34 J.s

1 mol photons = 6.023x10^23 photon

λ = 4.11×10^2 nm  = 4.11 × 10-7 meters

The parameters can be input  as Energy of one mole photon (E) = ( 6.023x10^23 * 6.626 * 10^-34 * 3*10^8)/ (4.11 × 10^-7)

=291302

=2.9*10^5 J

Learn more about energy at:

https://brainly.com/question/13881533

#SPJ1

Answer:

The angle of the Sun is lower during the winter months and higher in the sky during the summer.

Explanation:

i took the test

Answer:

The ratio of staggered to eclipsed conformers is 134

Explanation:

It is possible to determine the ratio of staggered to eclipsed conformers of a reactant, using the equilibrium:

Staggered ⇄ Eclipsed

Keq = [Eclipsed] / [Staggered]

That means Keq is equal to the ratio we need to find:

Using:

G˚= -RTln Keq

Where G° = -12133.6J/mol

R is gas constant: 8.314J/molK

T is absolute temperature: 298K

-12133.6J/mol= -8.314J/molK*298K ln Keq

4.8974 = ln Keq

134 = Keq = [Eclipsed] / [Staggered]

As the class is of 1 hour and  and each student uses for 6 minutes so in 1 hour 10 students will use the balance.

A scale or balance is a device used to measure weight or mass. These are also known as mass scales, weight scales, mass balances, and weight balances.

The traditional scale consists of two plates or bowls suspended at equal distances from a fulcrum. One plate holds an object of unknown mass (or weight), while known masses are added to the other plate until static equilibrium is achieved and the plates level off, which happens when the masses on the two plates are equal.

Learn more about balance,here:

https://brainly.com/question/1173599

#SPJ1

Answer:

B) Lithium ions have 1 positive charge, and phosphorus ions have 3 negative charges.

Explanation:

Lithium phosphide is an ionic compound in which lithium ions have 1 positive charge, and phosphorus ions have 3 negative charges. Therefore, option A is correct.

An ionic compound is a type of chemical compound that is composed of ions held together by electrostatic forces of attraction. These compounds are typically formed through the transfer of electrons between atoms, resulting in the formation of positively charged cations and negatively charged anions.

Ionic compounds often form crystal lattice structures due to the strong electrostatic forces between the ions. They tend to have high melting and boiling points.

Learn more about ionic compounds, here:

https://brainly.com/question/30420333

#SPJ6

Answer:

We will Multiply the number of moles with Avagadro's number

So it will be (2.04×1023)×6.022×10^23

NA means Avagadro's number

Answer:

See explanation

Explanation:

A unimolecular reaction is an elementary reaction in which the rearrangement of a single molecule produces one or more molecules of product(Chem Purdue).

A bimolecular reaction refers to the chemical combination of two molecular entities in a reaction that can be considered either reversible or irreversible(Springer).

Elementary reaction refers to any reaction that takes place in a single reactive encounter.

Overall reaction is the sum of all the steps of a non-elementary reaction.

a. We need approximately 94.4 grams of sodium chloride to completely react with 75.0 L of fluorine gas.

b. 75.0 grams of sodium chloride will produce approximately 107 grams of sodium fluoride.

c. The volume of chlorine gas produced is 17.96L.

a. To calculate the mass of sodium chloride needed to completely react 75.0 L of fluorine gas, we first need to use the ideal gas law to convert the volume of fluorine gas to moles:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature. Assuming standard temperature and pressure (STP), which is 0°C and 1 atm, we have:

n = PV/RT = (1 atm) (75.0 L) / (0.0821 L·atm/mol·K)(273 K) ≈ 3.23 mol F2

From the balanced chemical equation, we know that 2 moles of NaCl react with 1 mole of F2 to produce 2 moles of NaF and 1 mole of Cl2. Therefore, we need half as many moles of NaCl as F2:

n(NaCl) = 0.5n(F2) = 0.5(3.23 mol) = 1.615 mol NaCl

Finally, we can convert the moles of NaCl to mass using its molar mass:

m(NaCl) = n(NaCl) × M(NaCl) = 1.615 mol × 58.44 g/mol ≈ 94.4 g NaCl

Therefore, we need approximately 94.4 grams of sodium chloride to completely react with 75.0 L of fluorine gas.

b. To calculate the mass of sodium fluoride produced from 75.0 grams of sodium chloride, we first need to convert the mass of NaCl to moles:

n(NaCl) = m(NaCl) / M(NaCl) = 75.0 g / 58.44 g/mol ≈ 1.28 mol NaCl

From the balanced chemical equation, we know that 2 moles of NaCl react with 2 moles of NaF. Therefore, we can calculate the moles of NaF produced:

n(NaF) = 2 × n(NaCl) = 2.56 mol

Finally, we can convert the moles of NaF to mass using its molar mass:

m(NaF) = n(NaF) × M(NaF) = 2.56 mol × 41.99 g/mol ≈ 107 g NaF

Therefore, 75.0 grams of sodium chloride will produce approximately 107 grams of sodium fluoride.

c. To solve this problem, we need to use stoichiometry and the ideal gas law.

First, let's balance the chemical equation:

2NaCl(s) + F2(g) → 2NaF(s) + Cl2(g)

Molar mass of NaF = 22.99 + 18.99 = 41.98 g/mol

Number of moles of NaF produced = 66.60 g / 41.98 g/mol = 1.585 mol

Since 2 moles of NaF are produced for every 1 mole of Cl2, we can calculate the number of moles of Cl2 produced as follows:

Number of moles of Cl2 produced = 1.585 mol / 2 = 0.7925 mol

Applying the ideal gas law

PV = nRT

Assuming standard temperature and pressure (STP) conditions (0°C or 273 K and 1 atm), we can simplify the equation as follows:

V = nRT/P = (0.7925 mol) (0.0821 L·atm/mol·K) (273 K) / 1 atm = 17.96 L

Therefore, the volume of chlorine gas produced is 17.96 L.

Learn more on the ideal gas law here https://brainly.com/question/25290815

#SPJ1