Cameron connects a battery, a lightbulb, and electrical wires to make a simple circuit. Which choice correctly lists the forms of energy found in the circuit?
chemical only
chemical and electrical
chemical, electrical, light
chemical electrical, light, heat

Answer:

How do amoeba respire.

how do plants respire.

The percent ionic character of a molecule can be calculated using the following equation:

Percent Ionic Character = 100 × (μ/r)^2

Where μ is the dipole moment in Debye and r is the bond length in picometers.

Plugging in the given values, we get:

Percent Ionic Character = 100 × (1.39/121)^2

Percent Ionic Character = 100 × (0.0115)^2

Percent Ionic Character = 1.32%

What is dipole moment?

The dipole moment is a measure of the separation of positive and negative charges in a molecule. It is represented by the vector sum of the individual bond dipole moments and is measured in debyes (D).

To learn more about dipole moment

Here: https://brainly.com/question/11626115

#SPJ1

Answer:

130g

Explanation:

For every mole of a substance, there is a molar mass that coincides with the masses on the periodic table. For one mole of H2O, you would add the molar masses of the two hydrogen atoms and the oxygen atom to get 18.016g. You would then take this molar mass and multiple it by the amount of moles present (7.4) to get 133.3184g

From here, you would round to the significant figures to get 130g

10.8

7.2mol*3/2=10.8mol.

10.8 moles of H₂SO₄ is required for the reaction.

The balanced equation for the reaction is given below:

From the balanced equation above,

2 moles of Al required 3 moles of H₂SO₄.

Finally, we shall determine the number of mole of H₂SO₄ required to react with 7.20 moles of Al.

This can be obtained as follow:

From the balanced equation above,

2 moles of Al required 3 moles of H₂SO₄.

Therefore,

7.20 moles of Al will require = \(\frac{7.2 X 3}{2} \\\\\) = 10.8 moles of H₂SO₄

Thus, 10.8 moles of H₂SO₄ is required for the reaction.

Learn more: https://brainly.com/question/18474161

Answer:

To answer this u must simply find the number of mole of each element by using the formula

Number of moles = mass / relative formula mass (Mr)

Answer:

Explanation:

C₂H₄ + HCl = C₂H₅Cl

28 g                  64.5 g

28 g of ethylene reacts to give 64.5 g of ethyl chloride

4.66 g of ethylene reacts to give 64.5 x 4.66 / 28  g of ethyl chloride

= 10.73g

yield = 89.4 %

ethyl chloride produced = 10.73 x .894

= 9.6 g .

Answer:

The balanced chemical equation for the reaction of CO2 and H2 to produce H2O and CO is:

CO2 + 4H2 -> CH4 + 2H2O

From the equation, we can see that for every 1 mole of CO2 reacted, 2 moles of H2O are produced. Therefore, if 2.5 moles of CO2 are produced, the number of moles of H2O produced would be:

2.5 moles CO2 * (2 moles H2O / 1 mole CO2) = 5 moles H2O

Therefore, 5 moles of H2O would be produced when 2.5 moles of CO2 is produced.

In order to understand how digestion of nutrients occurs, or how nutrients are used to provide cellular energy, it is necessary to understand C. chemistry.

Chemistry is the branch of science that deals with the composition, properties, and interactions of matter. In the context of digestion and cellular energy, chemistry is essential because it provides the foundation for understanding the chemical reactions that occur within the body.

For example, the digestion of nutrients involves the breakdown of complex molecules such as carbohydrates, proteins, and fats into simpler molecules that can be absorbed and utilized by the body.

Find out more on chemistry at https://brainly.com/question/2460378

#SPJ1

At pOH value  of 6.0 the pH value of the following solution is 8.0 and the concentration of [\(H^{+}\) ] ion is \(10^{-8}\)

In this question we will apply the formula

      pH +pOH = 14 . . . . . . . . . . . . .(1)

where pH = concentration of [\(H^{+}\) ] ion

pOH = concentration of [\(OH^{-}\) ] ion

As per the question

pOH =6.0

Putting the value of pOH in equation (1) we get the value of pH

              pH + 6.0 =14

             pH = 14 -6.0

             pH  = 8.0

 The value of pH if the pOH value is 6.0 is 8.0

To find the concentration of \(H^{+}\) ion we will use the following formula

This is calculated by the formula

                                 [\(H^{+}\)} = \(10^{-pH}\)

where we will write the values of pH

Hence the concentration of [\(H^{+}\)} ion is \(10^{-8}\)

Therefore at  pOH of 6.0 the pH value of the following solution is 8.0 and the concentration of [\(H^{+}\) ] ion is \(10^{-8}\)

Read more about pH

https://brainly.com/question/11300720

The complete question is -

What is the pH value and concentration of [\(H^{+}\) ] ion of the following if the pOH value of the solution is 6.0 ?

The amount, in kJ, of heat needed to completely vaporize 50.0g of water at 100°C is 118.8 kJ.

The heat needed to completely vaporize 50.0g of water at 100°C can be calculated using the following formula:

q = m x Hv

where:

First, we need to convert 50.0g to moles by dividing by the molar mass of water which is approximately 18.015 g/mol3:

moles of water = 50.0 g / 18.015 g/mol moles of water = 2.776 mol

Thus:

q = (2.776 mol) x (40.65 kJ/mol) q = 112.8 kJ

In other words, 112.8 kJ of heat is needed to completely vaporize 50.0g of water at 100°C.

More on heat of vaporization can be found here: https://brainly.com/question/12625048

#SPJ1

Answer:

Choice C as my opinion

Explanation:

solidification of volcanic lava has to do with changes in earth and the thermal structure that's just a point not sure though

hope I was helpful though thank you

Answer:

c) solidification of volcanic lava

Explanation:

heat is being lost to the outside surroundings "exo" thermic

Answer:

The mass number is the sum of the number of protons and neutrons in an atom. It is a whole number. The atomic mass is the average number of protons and neutrons for all natural isotopes of an element

An element's mass number (A) is the sum of the number of protons and the number of neutrons. ... This approximation of mass can be used to easily calculate how many neutrons an element has by simply subtracting the number of protons from the mass number. Protons and neutrons both weigh about one atomic mass unit or amu

Answer:

Tracy was able to remember what her teacher told her to do and she decided to try it,which was the right thing.

But since it's a demonstration then Tracy is supposed to wear all her protective equipments and with a teacher's permission.I hope this helps.Thanks

Answer:

The answer is

Explanation:

by studying the matter and its parts and also discovering the wonders of our earth

Answer:

6598 mL = 6598 cm^3

Explanation:

Cubic centimeters (cc) and milliliters (mL) are both units of volume measurement. They are equivalent, meaning that 1 mL is equal to 1 cm^3. To convert from mL to cm^3, we simply multiply the volume in mL by 1.

To convert 6598 mL to cubic centimeters, we can use this conversion factor:

1 mL = 1 cm^3

Therefore, we can multiply 6598 mL by 1 to get the equivalent volume in cubic centimeters.

6598 mL x 1 cm^3/mL = 6598 cm^3

So, 6598 mL is equal to 6598 cm^3.

Answer:

C₅H₈NO₄Na

Explanation:

Step 1: Given data

Step 2: Divide each percentage by the atomic mass of the element

Na: 13.6/22.99 = 0.592

C: 35.5/12.01 = 2.96

H: 4.8/1.01 = 4.75

N: 8.3/14.00 = 0.592

O: 37.8/16.00 = 2.36

Step 3: Divide all the number by the smallest one, i.e. 0.592

Na: 0.592/0.592 = 1

C: 2.96/0.592 = 5

H: 4.75/0.592 ≈ 8

N: 0.592/0.592 = 1

O: 2.36/0.592 ≈ 4

The empirical formula of MSG is C₅H₈NO₄Na.

Cinnamon owes its flavor and odor to Cinnamaldehyde (C₂HgO), the boiling point elevation of a solution of 99.6 mg of Cinnamaldehyde dissolved in 1.00 g of Carbon tetra-chloride (Kb = 5.03°C/m) is: 3.40°C

The vapour pressure of the resultant solution is lower than the vapour pressure of the pure solvent when ever a non-volatile solute is added to it. The solution must thus be exposed to more heat in order for it to boil. The boiling point elevation is shown by the rise in the solution's boiling point. The increasing of a solvent's boiling point as a result of the addition of a solute is known as boiling point elevation. Similar to freezing point depression, adding a solute lowers the freezing point of a solvent. In actuality, a solvent's freezing point drops as its boiling point rises.

Moles of C₉H₈O = mass / molar mass of C₉H₈O

                            =  (99.6 × 10⁻³) / 132.16

                            = 6.76 × 10⁻⁴ mol

Mass of CCl₄ = 1.00 gm = 1.00 × 10⁻³ kg

Molality = Moles of C₉H₈O / Mass of CCl₄ in kg

Molality = 6.76 × 10⁻⁴ mol / 1.00 × 10⁻³ kg

Molality = 0.6757 m

Boiling point of elevation [Δt(b)] = k(b) × molality

Δt(b) = 5.03 × 0.6757

Δt(b) = 3.40°C

To know more about boiling point elevation refer to:

https://brainly.com/question/23860390

#SPJ1

Exothermic means that the temperature rises. The following equation represents the freezing of water to make ice. H2O(l) → H2O (s) Exothermic; energy is generated as water molecules form bonds during the phase transition.

An exothermic phase transition occurs when the sample loses energy (heat) to the environment. Condensation is the right answer since it is the phase transition from gas to liquid.

Condensation is the phase shift that occurs when a material transitions from a gas or vapour to a liquid. The process of condensation is exothermic.

When the energy created in an exothermic reaction is released as heat, the temperature rises.

Learn more about exothermic phase

https://brainly.com/question/1875234

#SPJ1

Answer:

A variable is anything that can change or be changed. In other words, it is any factor that can be manipulated, controlled for, or measured in an experiment.

The basic units of the human body are called cells, and they carry out specialized tasks to keep the body alive. Cells in a city might be compared to people who perform particular duties and contribute to the general efficiency of the city.

Organizational hierarchy is built up from lower levels. Consequently, molecules combine to create molecules, molecules create cells, cells create tissues, tissues create organs, organs create organ systems, and organ systems create beings. The body's next level of organisation. A tissue is made up of related cells with a common purpose. Human tissues can be divided into four categories: epithelial, muscular, nerve, and connective.

The major levels of organisation in the body, from the most basic to the most complex, are atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human body.

To know more about  human body visit:-

brainly.com/question/14289599

#SPJ9

The molality of the magnesium chloride solution dissolved in 500g of water is 1m.

Molality is the concentration of a substance in solution, expressed as the number of moles of solute per kilogram of solvent.

The molality of a solution can be calculated by dividing the number of moles of solute by the mass (in kilograms) of solvent as follows:

molality = no. of moles/mass

According to this question, 48 grams of MgCl2 dissolved in 500g of water. 48 grams of magnesium chloride is equivalent to 0.5041 moles. 500 g of water is equal to 0.5kg.

molality = 0.5041 mol / 0.5kg

molality = 1m

Learn more about molality at: https://brainly.com/question/26921570

#SPJ1

Answer:

Aqueous solutions of acids are electrolytes, meaning that they conduct electrical current. Some acids are strong electrolytes because they ionize completely in water, yielding a great many ions. Other acids are weak electrolytes that exist primarily in a non-ionized form when dissolved in water.

Acids have a sour taste. Lemons, vinegar, and sour candies all contain acids.

Acids change the color of certain acid-base indicates. Two common indicators are litmus and phenolphthalein. Blue litmus turns red in the presence of an acid, while phenolphthalein turns colorless.

Explanation:

Hope this helps

Answer:

λ = 4.46 x 10⁻⁷ m = 446 nm

Explanation:

Applying Law of Conservation of Energy in this condition, we will get the following equation:

Total Energy of Combined Photons = Energy of 1st Photon + Energy of 2nd Photon

hc/λ = hc/λ₁ + hc/λ₂

hc/λ = hc(1/λ₁ + 1/λ₂)

1/λ = 1/λ₁ + 1/λ₂

where,

λ = wavelength of combined photon = ?

λ₁ = wavelength of 1st photon = 853 nm = 8.53 x 10⁻⁷ m

λ₂ = wavelength of 2nd photon = 935 nm = 9.35 x 10⁻⁷ m

Therefore,

1/λ = 1/(8.53 x 10⁻⁷ m) + (9.35 x 10⁻⁷ m)

1/λ = (0.1172 x 10⁷ m⁻¹) + (0.1069 x 10⁷ m)

1/λ = 0.2241 x 10⁷ m⁻¹

λ = 1/(0.2241 x 10⁷ m⁻¹)

λ = 4.46 x 10⁻⁷ m = 446 nm

Answer:

446

Explanation:

Answer:

%(Zn) = 67%

%(S) = 33%

Explanation:

Step 1: Given data

Step 2: Calculate the mass of the compound

The mass of the compound is equal to the sum of the masses of the elements that form it.

mCompound = mZn + mS = 32 g + 16 g = 48 g

Step 3: Calculate the percent composition of each element in the compound

We will use the following expression.

%(Element) = mElement / mCompound × 100%

%(Zn) = 32 g / 48 g × 100% = 67%

%(S) = 16 g / 48 g × 100% = 33%

The correct answer is that sodium transfers one electron from chlorine to produce positive sodium ions and negative chloride ions, both of which have a charge of one.

The chloride ion, which is a chlorine anion and is a crucial electrolyte present in all physiological fluids, is the negatively charged component of several salts, including sodium and hydrogen chloride salts. It is in charge of controlling how much fluid enters and exits cells as well as preserving the body's acid/base balance.

Chloride is in fact a weak base in terms of its acid-base properties because of the negative value of the hydrochloric acid's pKa. The formula for protonating chloride is NaCl + H2SO4 NaHSO4 + HCl, and strong acids like sulfuric acid can do this. Ionic chloride salts interact with other salts to produce anions that are exchanged.

For more information on chloride ion kindly visit to

https://brainly.com/question/1307733

#SPJ4

Answer:

Heterogeneous examples would be:

Mixtures:  Chocolate Chip cookies, a Sandwich, tossed salad, Soda with Ice, Pizza etc...

Why? : Mixing together two solids without melting them together results in a heterogeneous mixture. Mixtures in two or more phases are heterogeneous mixtures (Ice in a drink, salt and oil etc...) :)

Hope this helps :P

ANSWER

decrease in temperature

EXPLANATION;

In the question provided, it was raining all day and it started to snow in the evening.

This means there in change in the state of matter from liquid to solid

The water is the liquid state and the snow is in the solid state.

For water to change to snow, then there is a drop in temperature

Therefore, the correct answer is decrease in temperature

Answer: A

Explanation: