What happens when forces are unbalanced?

The refrigerator would use 180 kilowatt-hours (kWh) of electric energy over the course of 30 days, assuming it runs for 12 hours each day.

To calculate the kilowatt-hours (kWh) of electric energy used by the refrigerator in 30 days, we need to multiply the power rating by the total running time.

Given:

Power rating of the refrigerator = 500 W

Running time per day = 12 hours

Number of days = 30

First, we need to convert the power rating from watts to kilowatts:

Power rating = 500 W / 1000 = 0.5 kW

Next, we calculate the total energy used in kilowatt-hours (kWh) over the 30-day period:

Energy used = Power rating × Running time × Number of days

Energy used = 0.5 kW × 12 hours/day × 30 days

Energy used = 180 kWh

Therefore, the refrigerator would use 180 kilowatt-hours (kWh) of electric energy over the course of 30 days, assuming it runs for 12 hours each day.

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Considering the given acids in different beakers at the same pH of 3.00,

7.  All have the same hydrogen ion concentration.

The correct option is D

8. The solution that has the highest percent ionization is Beaker 1. The correct option is A.

The pH of a solution is the negative logarithm of the hydrogen ion concentration of the solution.

Since the acid solutions are all at the same pH, the hydrogen ion concentration of the solutions in the beaker is the same.

The percent ionization of acids is a measure of the number of hydrogen ions produced by 1 mole of the acid solution. Strong acids have a 1005 ionization.

Hence, HCl has the highest percent ionization of the acid solutions in the beakers,

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In the photoelectric effect, the brighter the illuminating light on a photosensitive surface, the greater the **number of emitted electrons**.

The **photoelectric effect** occurs when light of sufficient energy (frequency) shines on a photosensitive surface, causing electrons to be ejected from the material. The brightness of the light determines the number of photons incident on the surface, which in turn affects the number of emitted electrons. As the brightness increases, more photons interact with the surface, resulting in a higher probability of electron ejection. This leads to an increase in the number of emitted electrons, which is directly proportional to the light's intensity. Note that the energy of each ejected electron remains constant and is determined by the frequency of the illuminating light, as described by Einstein's photoelectric equation.

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Answer:

increase the rate of reaction

The conditions that must be met for the substance or matter to have all 6 phases of changes at once are approximately;

Assume that the point referenced above is called point X, where the

lines cross, it is to be noted that this is the triple point, the the only temperature and pressure combination at which all three phases (solid, liquid, and gas) are in equilibrium and may thus exist concurrently.

If the above condition is achieved, the substance will either melt of freeze at 100 degrees centigrade. This is labelled point Y on the attached image.

The phase change that the substance will undergo is condensation, as the substance moves from a gas to a liquid.

Condensation is the transformation of water vapor into liquid. It is the inverse of evaporation, in which liquid water turns into a vapor.

Condensation occurs in one of two ways: the air is either chilled to its dew point or gets so saturated with water vapor that it cannot retain any more water.

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Answer:

The sun provides more than enough energy to meet the whole world's energy needs, and unlike fossil fuels, it won't run out anytime soon. As a renewable energy source, the only limitation of solar power is our ability to turn it into electricity in an efficient and cost-effective way.

Mass of 0.75 moles of \(C_{2}H_{6}\) is 22.5 g. 0.75 moles means 3/4 of one mole, the mass of 0.75 mole of ethane will be equal to 3/4 mass of one mole of ethane.

\(C_{2}H_{6}\)  is the chemical formula for ethane. It is made up of two molecules of Carbon and six molecules of Hydrogen.

Mass of 1 mole of ethane, \(C_{2}H_{6}\) is equal to sum of the mass of two molecules of carbon and the mass of six molecules of hydrogen.

mass of 1 mole of \(C_{2}H_{6}\) = 2(12) + 6(1) = 30 g

where mass of carbon is 12 g

and mass of hydrogen is 1 g

mass of 0.75 mole of \(C_{2}H_{6}\) = 0.75 (30)

                                             = 22.5 g

Hence, the mass of 0.75 moles of \(C_{2}H_{6}\) is 22.5 g.

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Answer: Lower Left!

Explanation: I just took the quiz.

This chemical molecule consists of 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms.There are 24 atoms in all.Six C atoms, twelve H atoms, and six O atoms make up one glucose molecule.

Six-carbon glucose is broken down during glycolysis into two pyruvate molecules each one with three carbons.In the glycolysis summary below, glucose transforms to two pyruvate molecules, producing two ATP molecules and two NADH molecules.

D-glucose, D-fructose, D-galactose, & D-mannose are the four most prevalent six-carbon sugars (hexoses).

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Answer:

true

Explanation:

it is true because acceleration is the increase or adjustment of speed

Answer:

I don't know I don't know about question but I can try to find it

Explanation:

I don't know about question but I can try to find it

Answer:

C. easily dissociates into ions when I’m solution

Explanation:

Strong acids are compounds that completely decompose when dissolved in water and produce the total number of ions.

In an ecosystem in the hilly areas the should built its factory away from the river so that pollution does not reach the river.

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 microbes nutrients are released back in to the soil.

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From the list provided, the following groups are part of the periodic table are Metals, Nonmetals , Semimetals and Conductors .

Metals: Metals are a group of elements that are typically solid, shiny, malleable, and good conductors of heat and electricity. They are located on the left-hand side and middle of the periodic table.

Nonmetals: Nonmetals are elements that have properties opposite to those of metals. They are generally poor conductors of heat and electricity and can be found on the right-hand side of the periodic table.

Semimetals: Semimetals, also known as metalloids, are elements that have properties intermediate between metals and nonmetals. They exhibit characteristics of both groups and are located along the "staircase" line on the periodic table.

Conductors: Conductors are materials that allow the flow of electricity or heat. In the context of the periodic table, certain metals and metalloids are good conductors of electricity.

Therefore, the groups that are part of the periodic table are metals, nonmetals, semimetals, and conductors. The other groups mentioned, such as acids, flammable gases, and ores, are not specific groups found on the periodic table but may be related to certain elements or compounds present in the table.

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The complete question is :

From the list below, choose which groups are part of the periodic table.

metals

acids

flammable gases

nonmetals

semimetals

ores

conductors

Answer:

c.1.5 moles of cu Will contain a total of 9.0 * 10 ^ 23 ATOMS.

To convert moles into atoms they molar amount and number of atom is múltiples by avagadro's number.

Answer:

According to the numbers 1-5;Aluminium,Mercury,Oxygen,Stainless Steel,Hydrogen gas.

Explanation:

The catalyst for the decomposition of aldehyde (CH3CHO) into CH4 and CO in the presence of I2 at 800 K is I2. The slower step in the two-step mechanism is the first step. So, the correct option is (b) I2, Ist step.

The catalyst for the reaction is I2, as it is present in the rate law and is not consumed in the reaction. The slower step in the two-step mechanism is typically the rate-determining step, so we can examine the rate law for clues. The rate law contains both CH3CHO and I2, which are involved in the first step, but only CH3I and HI are involved in the second step. Therefore, the slower step must be the first one, and the answer is b. I2 is the catalyst for the reaction and the slower step is the first one, CH3CHO+I2 → CH3I+HI+CO.

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Answer:

D hope this helps

Explanation:

Answer:

d. what will happen to the freezing point of the water if salt is added?

Answer:

The density is 6

Explanation:

p = m × v

p = 3 × 2

p = 6

Hope this helped! :)

The density of the substance depends on the mass and the volume of the substance or object. It is given by the ratio of mass and volume. The density of 3 gm solid is 1.5 g/cm³.

In chemistry and physics, density is a quantitative measurement that tells about the tightness of the substance packed in an area. It relates to two parameters that include mass and volume.

The density can be said to have a proportion of mass to the volume of the substance. The mass can be in grams or kilograms, while volume can be in a liter, cubic meter, and cubic centimeter.

Given,

Mass of solid (M) = 3 gm

The volume of solid (V) = 2 cm³

Density (ρ) is calculated as:

ρ = M ÷ V

= 3 ÷ 2

= 1.5 gm/cm³

Therefore, 1.5 gm/cm³ is the density of 3 gm solid.

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The formula that is given in option (3) represents a binary compound.

The Binary chemical compound is a chemical compound that contains exactly two different elements.

In Ne only one element is present, so it is not a binary compound.

In \(Br_2\), two same elements are present, so it is not a binary compound.

In \(H_2SO_4\), three elements are present, so it is not a binary compound.

But in case of \(C_3H_8\), only two elements that is carbon and hydrogen are present. So, this is a binary compound.

So, option (3) is correct.

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The 40%  is the percentage of oxygen in the vessel.

What is pressure ?

As force applied per unit area, pressure is defined. P=FA, where F is the force operating perpendicular to the surface area A, gives it mathematical expression. The pascal (Pa), which equates to a newton per square metre (N/m 2), is the accepted unit of pressure.

What is partial pressure ?

The idea of partial pressure arises from the fact that each individual gas contributes a portion of the total pressure, and that portion is the partial pressure of that gas. In order to describe all the pieces, it is essentially like taking a percentage or fraction of the whole.

Therefore, The 40%  is the percentage of oxygen in the vessel.

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The gauge pressure of air in the tank is Pg= 1.076 psi

Gauge pressure (sometimes written as "gauge pressure") is measured relative to the local atmospheric pressure. Gauge pressure is thus zero when the pressure is the same as atmospheric pressure. Gauge pressure is indicated by pg, and is related to absolute pressure as follows: pg = p - pa, where pa is the local atmospheric pressure.

Given these data

Density of air = 1.225 kg/m3

Density of water = 1000 kg/m3

Note that the absolute pressure of air in the tank = 100kpa

Acceleration due to gravity = 9.8 m/s2

P=hρg

100 = h * 1000* 9.8

h = 98m

So replacing the value of h to calculate the atmospheric pressure

P=hρg

P= 98 *1.225*9.8

P= 1176.49

Substitute these values into the formula

Pg= p - pa,

Pg= 1176.49-100

Pg= 1.076 psi

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Answer:

another name for groups of elements is family.

Answer: The Periodic Table of Elements

Explanation: The Periodic Table of Elements is a table with different elements arranged in an order, usually in vertical rows of two.

Answer:

Rubbing the match against a rough surface

The activation energy is provided by friction between surfaces

Explanation:

Activation energy is the energy required to start a chemical reaction. It is the minimum energy that must be supplied for a reaction to proceed.

When we strike a match against a rough surface, what we are trying to do is to supply the required activation energy in the form of friction in order to get the combustion reaction started.

Hence, the activation energy for the combustion of a match head is supplied by friction when the match head is struck against a rough surface.

Answer:

2 HNO3 + CaCO3 = Ca(NO3)2 + H2O + CO2

Explanation:

Given Equation :

\(HNO_3 + CaCO_3 = Ca(NO_3)_2 + H_2O + CO_2\)

Balanced Equation

\(2 HNO_3 + CaCO_3 = Ca(NO_3)_2 + H_2O + CO_2\)

Answer:

6.273×10²³

Explanation:

hope this is useful friend

Answer:

6.023 × 10²³

Explanation:

Avogadro's number is used for calculating masses and moles and can applied to Stoichiometry. Avogadro's number is useful for atoms and molecules

Answer:

Your answer will be *iron* as it is a element its number is 26

Answer:

The elements boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te), polonium (Po) and astatine (At) are considered metalloids. Metalloids conduct heat and electricity intermediate between nonmetals and metals and they generally form oxides.

Explanation: