5. an atom that has lost or gained an electron and has become charged
A.ion
B. proton
C. ionic bond
D. compound

Answer:

It takes him 0.57 to fly 200 m

Explanation:

Velocity = distance/ time  

so  t= d/v

t= 200m /350m/s  = .57 s

Answer:

8. the formula of the products are CO2(g) , H2O (l) and NaCl (aq)

Explanation:

s- solid

g- gas

l- liquid

aq- aqueous, means acid

These are the products of the equation, you can balance this by searching up a video on how to do so, or use a balance equations calculator online. Balancing is very easy tho.

The volume of this same sample of gas if it were measured at STP is 386.09mL

HOW TO CALCULATE VOLUME:

The new volume of a gas sample can be calculated using the following expression:

P1V1/T1 = P2V2/T2

Where;

According to this question, a sample of a certain gas has a volume of 452 mL at 711 mmHg and 26°C (299K).

(711 × 452)/299 = 760 × V2/273

1074.82 = 2.78V2

V2 = 1074.82 ÷ 2.78

V2 = 386.09mL

Therefore, the volume of this same sample of gas if it were measured at STP is 386.09mL.

Learn more about volume at: https://brainly.com/question/754925?referrer=searchResults

The addition of detergent to water will break the surface tension and this would make the water strider sink into the water.

The surface tension of water is broken by the addition of detergents or surfactants.

With surface tension, the water strider is able to walk on water.

With surface tension broken as a result of the addition of detergents or surfactants, water striders will not be able to work on water. Instead, the insect will sink into such waters.

More on surface tension can be found here: https://brainly.com/question/571207

When atoms and molecules speed up or slow down, that is a physical change. When they change state from liquid to solid or from gas to liquid, that is a physical change. ... The ions or molecules can still come back together to form the original substance

The physical change which happens to atoms and molecules in a solution that is strongly heated in a flame is;

Atoms and molecules which are units of matter when strongly heated in a flame have increased internal energy and would undergo a phase change to a more energetic state of matter which is the gaseous state.

As such, the physical change that occurs in them is. increased internal energy.

Read more on heating and Phase change;

https://brainly.com/question/12168850

The concentration of O₂ will decrease because it is being consumed to form NO.

The reaction: N₂ + O₂ ⇌ 2NO involves the combination of nitrogen and oxygen to form nitrogen oxide. According to Le Chatelier's principle, when a stress is applied to a system at equilibrium, the system will shift its equilibrium position in such a way as to counteract the stress and re-establish equilibrium.

If N₂ is added to the system, this would be considered a stress. To counteract this stress, the equilibrium will shift to the right, towards the side of the reaction with fewer moles of gas. In this case, the right side of the reaction has fewer moles of gas (two moles of NO) compared to the left side (one mole of N₂ and one mole of O₂). Therefore, the equilibrium will shift towards the right, and more NO will be produced.

To know more about concentration, here

https://brainly.com/question/3045247

#SPJ4

Answer:

He blasted alpha rays at the gold foils. The Alpha rays are charged positive. When he blasted them the protons deflected and changed the course of them and the electrons surrounding the atom let them through. In the plum pudding model they were supposed to be sprinkled on which was clearly wrong according to that experiment.

Explanation:

Kai asked 10 random students how long it took for them to get to school using different methods on two different days. Without knowing the specific methods the students used, it is difficult to provide an accurate estimate for how long it will take students to get to school on their next trip. However, I can provide a rough estimate based on the data Kai collected.

Assuming Kai collected data for common methods such as walking, biking, driving, or taking the bus, we can analyze the average time it took for each method on the two different days. Let's say on Day 1, the average time for walking was 15 minutes, biking was 10 minutes, driving was 20 minutes, and taking the bus was 30 minutes. On Day 2, the average time for walking was 20 minutes, biking was 15 minutes, driving was 25 minutes, and taking the bus was 35 minutes.

Based on this data, we can estimate that on the next trip, it will take students around 150 minutes (10 students x 15 minutes) to walk to school, 100 minutes (10 students x 10 minutes) to bike to school, 200 minutes (10 students x 20 minutes) to drive to school, and 300 minutes (10 students x 30 minutes) to take the bus to school. Of course, this is a very rough estimate and may not accurately reflect the time it will take each individual student on their next trip, as there are many variables that can affect travel time such as traffic, weather, and distance.

Based on Kai's research, he can estimate the time it takes for students to get to school using different methods. Since we don't have specific data from his study, here's a general guideline:

1. Walking: If most students take about 15-30 minutes to walk to school, the estimated time for their next trip would be around 15-30 minutes.
2. Biking: If biking takes students about 10-20 minutes, their next trip could be estimated within that range.
3. Public transportation: Assuming students take 20-40 minutes on public transport, the estimated time for their next trip would be within this range.
4. Driving: If driving takes students approximately 5-15 minutes, their next trip could be estimated within that time frame.

To know more about range visit:-

https://brainly.com/question/29204101

#SPJ11
.

It is not possible to solve the given system of differential equations. The system needs to be solved using numerical methods.

A nonlinear irreversible chemical process is described by the following governing equations 2.1 and 2.2. CA is the concentration of the chemical product that depends on temperature. The temperature, T, is not constant and the rate of reaction is a function of temperature. The governing equations are given below:

Equation:

2.1: dCA/dt= -k(T)CA

Equation :

2.2: dT/dt= -q(T)CA

The given differential equations form a system of two ordinary differential equations with two dependent variables CA and T. The values of k(T) and q(T) depend on temperature T and are the coefficients of the governing equations.The given differential equations are nonlinear differential equations since CA and T appear in the coefficients of the differential equations.

These equations are also irreversible as the rate of change of the product CA depends only on the concentration of the reactants and not on the concentration of the product (CA). The initial conditions are not given in the question. Hence, it is not possible to solve the given system of differential equations. The system needs to be solved using numerical methods.

To learn more about system ,

https://brainly.com/question/23117865

#SPJ4

Answer:

They are formed by windblown sand collecting around an obstruction. As organic matter is deposited by wind and waves, low herbs colonize the dune. As these plants collect more sand and organic matter, the dune increases in height becoming the fore dune.

Temperature, pH, PCO2, and 2,3 diphosphoglycerate are some of the variables that affect how oxygen binds to hemoglobin.

The oxygen dissociation curve moves to the right and Hb's affinity for O2 decreases as its temperature rises. The oxygen Hb dissociation curve changes to the right as the partial pressure of carbon dioxide rises, increasing the P50 value. As a result of greater Hb binding to carbon dioxide, Hb has a lower affinity for oxygen.

To learn more about oxygen click here https://brainly.com/question/13370320

#SPJ4

Answer:

40.15 g/mol

Explanation:

The molar mass of c2h16 is

40.1484 g/mol ≈ 40.15 g/mol (rounded to 4 significant figures)

The empirical formula for an ionic compound is typically written in the form of "AxBy," where "A" is the number of atoms of the "parent" element and "x" and "y" are the numbers of atoms of the "daughter" element.

The empirical formula for an ionic compound is a simplified formula that represents the simplest ratio of the number of atoms of each element in the compound. To determine the empirical formula for an ionic compound composed of calcium ions (Ca) and bromide ions (Br), you would need to know the molar mass of each ion and the ratio of the number of moles of calcium ions to the number of moles of bromide ions in the compound.

The molar mass of calcium (Ca) is 40.08 g/mol, and the molar mass of bromide (Br) is 79.9 g/mol. Therefore, the molar mass of the compound is the sum of the molar masses of the ions:

Molar mass of compound = molar mass of Ca + molar mass of Br-

= 40.08 g/mol + 79.9 g/mol

= 119.98 g/mol

To determine the empirical formula, you would need to know the ratio of the number of moles of calcium ions to the number of moles of bromide ions in the compound. For example, if there are 2 moles of calcium ions and 1 mole of bromide ions in the compound, the empirical formula would be "Ca, Br".

Learn more about empirical formula visit: brainly.com/question/1439914

#SPJ4

Answer:

acid +base gives salt and water

acid and carbon gives salt and water and carbon dioxide

acid and metal gives salt and hydrogen

In this type of reaction, a better reactive compound displaces the less reactive compound. For instance, zinc exists better reactive than hydrogen, therefore zinc will displace hydrogen.

The reaction, Zn + \(H_2SO_4\) →  \(ZnSO_4 + H_2\), exists an illustration of single replacement reaction. A single replacement reaction exists even comprehended as a displacement reaction.

The general structure of a displacement reaction exists:

A + BC → AC + B

In this type of reaction, a better reactive compound displaces the less reactive compound. For instance, zinc exists better reactive than hydrogen, therefore zinc will displace hydrogen.

This equation indicates the development of a chemical difference. When one molecule of zinc and one molecule of sulphuric acid responds it results in the exhibition of one molecule of zinc sulfate and one molecule of hydrogen.

To learn more about the reaction refer to:

https://brainly.com/question/14158257

#SPJ9

The relationship between equilibrium and diffusion rate is that at dynamic equilibrium, the rate of diffusion of reactants and products is equal, maintaining a constant concentration throughout the system.

Dynamic equilibrium refers to the state of a reversible chemical reaction where the forward and backward reactions are occurring at the same rate. In a dynamic equilibrium system, the concentrations of the reactants and products remain constant over time, although the actual concentrations may change due to the addition or removal of reactants or products. Equilibrium and the diffusion rate are related in that the diffusion rate determines how quickly a system will reach equilibrium.

When the diffusion rate is high, the system will reach equilibrium more quickly than when the diffusion rate is low. This is because diffusion is the process by which molecules move from an area of high concentration to an area of low concentration, which is the driving force behind the attainment of equilibrium. Dynamic equilibrium refers to a state in which the rate of the forward reaction equals the rate of the reverse reaction, resulting in no net change in the concentrations of reactants and products.

Know more about   equilibrium  here:

https://brainly.com/question/517289

#SPJ11

Answer:

The identity of the element can be determined by comparing the atomic masses of the known isotopes with the atomic masses of the elements listed in the answer choices.

The weighted average atomic mass of the element can be calculated as follows:

(0.51839 × 106.91 amu) + (0.48161 × 108.90 amu) = 107.87 amu

The closest match to this atomic mass is option 1, Silver. The atomic number of silver is 47, which means it has 47 protons in its nucleus. The two stable isotopes of silver are ^107Ag and ^109Ag, which have atomic masses of 106.905 amu and 108.905 amu, respectively. The given atomic masses of the isotopes in the question are not exact matches to the known isotopes of silver, but they are close enough to identify the element as silver.

Therefore, the answer is 1. Silver.

they get closer together

The molality of Li+ ions in a 0.302 M solution of Li3PO4 is 0.906m.

The formula for determining molarity from moles and volume is extremely straightforward. Simply divide the volume of the solution by the moles of solute.

The quantity of solute molecules present in one kilogram of the solvent is known as molality. For instance, a 1 molal NaOH solution contains one that contains 1 mole of NaOH in 1 kg of water. Molality(m) is defined mathematically as the number of moles of the solute(n) weight of the solvent in kilograms.

The number of moles of Li3PO4,

Li₃PO₄ -----> 3Li^+ + PO₄^3-

There are three mole of lithium ions in the compound, it the follows that the molality of the lithium ions is;

3 * 0.302 m = 0.906 m

To know more about molality visit:

https://brainly.com/question/28087501

#SPJ4

answer B the rock is purple

Answer:

Unless they chemically react with each other, the individual gases in a mixture of gases do not affect each other’s pressure. Each individual gas in a mixture exerts the same pressure that it would exert if it were present alone in the container . The pressure exerted by each individual gas in a mixture is called its partial pressure.

Explanation:

Answer :position

Explanation:

Potential energy is the energy stored in an object due to its position

Answer:

Both ethylene and acetylene are hydrocarbons but the former has a carbon to carbon double bond while the latter has a carbon to carbon triple bond.

Both organic compounds are referred to as hydrocarbons.

They are also both unsaturated.

Ethylene contains a C-C double bond and belongs to the alkene group.

Acetylene contains a C-C triple bond and belongs to the alkyne group.

More on hydrocarbons can be found here: https://brainly.com/question/17578846

13.29 X \(10^{21}\) moles of NaCl are in a pinch of salt and a pinch of salt has

approximately 3.29x\(10^{21}\) formula units of NaCl.

The mole is the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12; its symbol is “mol”.

We know that 1 formula unit of sodium chloride has a molar mass of 58.44g/mol

Hence;

Mass of 1 formula unit = 58.44g

Mass of 3.29 x \(10^{21}\) formula units

13.29 x \(10^{21}\) x 58.44g

776.6676 x \(10^{21}\)

Moles =\(\frac{776.6676 X 10^{21} }{ 58.44g}\)

Moles = 13.29 X \(10^{21}\)

Therefore;

13.29 X \(10^{21}\) moles of NaCl are in a pinch of salt.

Learn more about moles here:

https://brainly.com/question/15209553

#SPJ1

Answer:

Volume = 190.8

Answer:

it is a infectiousr bacterial disease characterized by the growth of nodules(tubercles) in tissues especially the lungs

Answer:

volume is the amount of space in a certain object

The dopant concentration on the p-type side and n-type side can be calculated using the equation:

p-type side: Np = N - Nd = 10^19 cm^-3 - 10^18 cm^-3 = 9 × 10^18 cm^-3

n-type side: Nn = N - Na = 10^19 cm^-3 - 10^18 cm^-3 = 9 × 10^18 cm^-3

b) For the n-type side of the pn-junction at room temperature:

1) The hole concentration (p) can be calculated using the equation:

p = n_i^2 / n

where n_i is the intrinsic carrier concentration (approximately 1.5 × 10^10 cm^-3 for silicon at room temperature) and n is the donor concentration (10^18 cm^-3).

p = (1.5 × 10^10 cm^-3)^2 / 10^18 cm^-3 ≈ 2.25 × 10^2 cm^-3

The electron concentration (n) is equal to the donor concentration (10^18 cm^-3).

2) The resistivity (ρ) of silicon on the n-type side can be calculated using the equation:

ρ = 1 / (q * μ * n)

where q is the elementary charge (1.6 × 10^-19 C), μ is the mobility of electrons (approximately 1400 cm^2/Vs for silicon at room temperature), and n is the electron concentration (10^18 cm^-3).

ρ = 1 / (1.6 × 10^-19 C * 1400 cm^2/Vs * 10^18 cm^-3) ≈ 4.5 × 10^-3 Ω·cm

3) The drift current density (J) can be calculated using the equation:

J = q * μ * n * E

where E is the electric field (100 V/cm), q is the elementary charge (1.6 × 10^-19 C), μ is the mobility of electrons (approximately 1400 cm^2/Vs for silicon at room temperature), and n is the electron concentration (10^18 cm^-3).

J = (1.6 × 10^-19 C * 1400 cm^2/Vs * 10^18 cm^-3 * 100 V/cm) ≈ 2.24 A/cm^2

c) The value of the built-in potential barrier (V_bi) of the junction can be calculated using the equation:

V_bi = (k * T / q) * ln(Na * Nd / n_i^2)

where k is Boltzmann's constant (1.38 × 10^-23 J/K), T is the temperature in Kelvin (room temperature is approximately 300 K), q is the elementary charge (1.6 × 10^-19 C), Na is the acceptor concentration (10^18 cm^-3), Nd is the donor concentration (10^18 cm^-3), and n_i is the intrinsic carrier concentration (approximately 1.5 × 10^10 cm^-3 for silicon at room temperature).

V_bi = (1.38 × 10^-23 J/K * 300 K / 1.6 × 10^-19 C) * ln(10^18 cm^-3 * 10^18 cm^-3 / (1.5 × 10^10 cm^-3)^2) ≈ 0.7 V

d) The depletion layer width (W) of the pn-junction can be calculated using the equation:

W = sqrt((2 * ε_s * (V_bi + V_applied)) / (q * (1 / Na + 1 / Nd)))

where ε_s is the permittivity of silicon (approximately 11.8 * ε_0, where ε_0 is the vacuum permittivity), V_bi is the built-in potential barrier (approximately 0.7 V), V_applied is the applied voltage, q is the elementary charge (1.6 × 10^-19 C), Na is the acceptor concentration (10^18 cm^-3), and Nd is the donor concentration (10^18 cm^-3).

e) The width of the depletion layer on the p-type side can be approximated as the same as the depletion layer width on the n-type side.

Note: The values used in the calculations are approximations and may vary depending on the specific properties of the materials and temperatures.

To know more about equation visit:

https://brainly.com/question/29538993

#SPJ11

Answer:

Explanation: