Which of these is a compound?
carbon dioxide

potassium

salt water

salad

Answer:

Rate cup 1: 36.00 tsp/h.

Rate cup 2: 59.50 tsp/h.

Rate cup 3: 70.13 tsp/h.

Explanation:

Based on the given example, the units must be in tsp/hour. To do this we just have to divide tsp by seconds and then convert it to hours remembering that 1 hour equals 3600 seconds.

Let's calculate each case:

- Cup 1: 1 tsp, 1 minute 40 seconds. Remember that 1 minute equals 60 seconds, so 1 minute and 40 seconds equals 100 seconds. The calculation of the rate will look like this:

The rate of cup 1 is 36.00 tsp/h.

- Cup 2: 2 tsp, 2 minutes 1 second. As we saw before 1 minute equals 60 seconds, so 2 minutes equals 120 seconds. 2 minutes and 1 second equals 121 seconds. The rate of cup 2 will be calculated as:

The rate of cup 2 is 59.50 tsp/h.

- Cup 3: 3 tsp, 2 minutes 34 seconds. 2 minutes are the same that 120 seconds, so 2 minutes 34 seconds equals 154 seconds. The rate of cup 3 is calculated as follows:

The rate of cup 3 is 70.13 tsp/h.

The conjugate base of a compound is what this compound will be after donating a H⁺.

The comopund in question is H₂BO₃⁻. After it loses 1 H⁺, it will have one less H atom and its charge decrease by one. Its charge is only with a "-" sign, which means its chargeis 1-. After decreasing by one, the charge becomes 2-.

So, the conjugate base will be HBO₃²⁻

Answer:

The reaction 6CO2 + 6H2O ---> C6H12O6 + 6O2 is the chemical equation for photosynthesis. In this reaction, carbon dioxide and water

Explanation:

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Answer:

fossil fuil is way easer to burn

Explanation:

also transport good luck!

Dry ice is colder, heavier, less messy than regular ice. If I understood your question correctly, the mass of it would decrease bc it is being dispersed into the air as carbon dioxide.

Explanation:

As a result of the transformation of solid carbon dioxide into carbon dioxide gas, which enters the atmosphere, the weight of the ice decreases and falls.

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Answer:

Pretty much, yes!

Explanation:

The cell starts like this: o

First, the DNA inside the cell replicates and condenses into chromosomes. The also gathers all the materials necessary to divide and duplicates some organelles. (represented by 0)

Then the chromosomes pair up and are pulled to opposite poles of the cell. Then, the membrane pinches (invaginates) in in preparation to make two cells (8).

Then, cytokinesis occurs, when the cytoplasm splits and two new cells are formed (oo)

answer✅☑️✔️️

1.0×10^-11

Answer:

malleable

Explanation:

The image represent in malleable property of metal.

The image possibly represents the photoelectric effect of a metal, which is when it emits electrons after being exposed to electromagnetic radiation. Metals are also characterized by physical properties such as conductivity, malleability, metallic luster, and metallic bonding.

Based on your question, the image possibly represents the photoelectric effect, a key property of metals. This phenomenon occurs when a metal surface exposed to electromagnetic waves of a certain frequency absorbs radiation and emits electrons. These emitted electrons are called photoelectrons. Metals can also exhibit free electron model behavior, where electrons freely roam within the metal structure.

Metals possess unique physical properties like conductivity, malleability, and metallic luster. Malleability refers to the metal's ability to deform without breaking, while conductivity refers to the metal's ability to transfer heat or electricity. A metallic luster gives metals their characteristic shiny appearance.

Finally, metals are also known for their metallic bonding—a unique force that holds together the atoms within a metallic solid. Metallic bonding gives rise to many useful and varied bulk properties of metals.

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The amount of energy released when 1.00 mol of SO3 is produced is -395 kJ/mol.

Given that 1.00 mol of sulfur trioxide is produced, we have to find out the amount of energy released during the reaction.

The reaction for the production of sulfur trioxide is given as;2SO2(g) + O2(g) ⟶ 2SO3(g)The balanced equation shows that the reaction produces 2 mol of SO3 for every 2 mol of SO2 and 1 mol of O2, which means the reaction produces 2 mol of SO3 for every 3 mol of O2 reacted.

So, 1.00 mol of SO3 is produced by reacting (3/2) × 1.00 mol of O2.

The energy released during this reaction is given by the enthalpy change of the reaction, which is -395 kJ/mol, and it is negative because the reaction is exothermic and releases energy.

The enthalpy change (-395 kJ/mol) corresponds to the reaction producing 2 mol of SO3.

Therefore, to find the amount of energy released when 1.00 mol of SO3 is produced, we need to calculate the amount of energy released when 2 mol of SO3 is produced and divide it by 2.

This is done to convert the energy released to per 1.00 mol of SO3 produced.

The amount of energy released when 2 mol of SO3 is produced = 2 × (-395 kJ/mol) = -790 kJ/mol

The amount of energy released when 1.00 mol of SO3 is produced = (-790 kJ/mol) ÷ 2= -395 kJ/mol

Therefore, the amount of energy released when 1.00 mol of SO3 is produced is -395 kJ/mol.

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Answer:

Some serious diseases like anthrax is also caused in animals by the microbes. Microbes also cause diseases of plants like blights in potatoes, sugarcanes, oranges etc. They also reduce the yield. Microbes grow on food products and render them unfit for consumption.

Explanation:

Answer:

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question

volume = 34,000 L

density = 1.84 kg/L

We have

mass = 1.84 × 34,000 = 62,560

We have the final answer as

Hope this helps you

In the given reaction, \(CH_2} + O_{2} - > H_{2} O + CO_{2} + energy\), this reaction further displays release of energy while the reaction takes place. The correct answer is option b, this reaction best describes an exergonic reaction.

This reaction is exergonic because it releases energy in the form of heat or light. Exergonic reactions involve the conversion of potential energy stored in the chemical bonds of the reactants into kinetic energy released by the products. In this case, the reactants (\(CH_2}\) and \(O_{2}\)) have higher energy content compared to the products (\(H_{2} O\),  \(CO_{2}\), and energy), indicating an exergonic process.

Option a, "This reaction best describes an endergonic reaction," is incorrect because endergonic reactions require an input of energy to proceed, whereas this reaction releases energy.

Option c, "This reaction has lower entropy," is not directly indicated by the given reaction equation. Entropy, which refers to the degree of disorder or randomness in a system, is not explicitly described.

Option d, "This reaction is an anabolic reaction," is also incorrect. Anabolic reactions are involved in building complex molecules from simpler ones, which is not the case in the given reaction.

Therefore, the correct answer is option b: This reaction best describes an exergonic reaction.

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Answer:

ClxOy + H2 > HCl + H2O

HCl = 0.233/37 = 0.006 mol H2O = 0.403/180.02 mol

HCl = 0.006/0.022 H2O = 0.022/0.006

= 1 = 4

Cl2O4 + 5H2 > 2HCl + 4H2O

I'm think that's the answer

Answer:

19.79%

Explanation:

mass % = (mass solute / total mass) * 100

total mass = 129.54 + 525 = 654.54

solute = C6H12O6

(129.54/654.54) = .1979

.1979 * 100 = 19.79%

This net ionic equation, including phases, represents the reaction of Fe(NO₃)₂(aq) and Na₂CO₃(aq) to form FeCO₃(s) and 2NaNO₃(aq).

The net ionic equation, including phases, for the reaction:
Fe(NO₃)₂(aq) + Na₂CO₃(aq) ⇒ FeCO₃(s) + 2NaNO₃(aq)
First, we break down the reactants and products into their respective ions:
Fe²⁺(aq) + 2NO₃⁻(aq) + 2Na⁺(aq) + CO₃²⁻(aq) ⇒ FeCO₃(s) + 2Na⁺(aq) + 2NO₃⁻(aq)
Now, we can remove the spectator ions that do not participate in the reaction, which are 2Na⁺(aq) and 2NO₃⁻(aq). This gives us the net ionic equation:
Fe²⁺(aq) + CO₃²⁻(aq) ⇒ FeCO₃(s)

The entire symbols of the reactants and products, as well as the states of matter under the conditions under which the reaction is occurring, are written in the complete equation of a chemical reaction.

Only those chemical species that actively contribute to a chemical reaction are listed in the net ionic equation for that reaction. In the net ion equation, mass and charge must be equal.

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Visible corrosion, or other degradation of a container, may indicate that a container is undergoing chemical energy.

What is corrosion? Corrosion is a destructive phenomenon that causes the loss of material from the surface of a solid due to chemical reactions with the surrounding environment.

The oxidation of metals in the presence of air, water, or acids is the most well-known instance of corrosion.

What is degradation?

The method of breaking down or decomposing is known as degradation. Degradation can occur in various ways, including natural and man-made causes, and can have severe environmental and economic consequences.

Polymer degradation, for example, causes the breakdown of the material's physical and chemical properties as a result of the impacts of certain environmental factors.

What are the containers?

Containers are equipment that is intended to store items, including goods, raw materials, and items, or transmit them from one location to another, such as storage containers, shipping containers, and bulk containers. There are various types of containers for different purposes and industries, and they come in various shapes, sizes, and materials.

How is a container undergoing chemical energy?

Visible corrosion, or other degradation of a container, may indicate that a container is undergoing chemical energy. When containers are subjected to harsh environments, such as high temperatures or humid environments, they may deteriorate or corrode over time, resulting in material loss or structural damage. As a result, it is critical to take care of containers and inspect them regularly to ensure that they are in good condition.

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Answer:

Answer A

Explanation:

When light enters a lense it bends and changes direction, and then does this again when it leaves. leaving the correct image in the center

The following action will increase the equilibrium concentration of an inert gas (such as n2) in water: decreasing the pressure of the gas above the liquid. On the other hand, increasing the volume of water and decreasing the temperature of the water would not affect the equilibrium concentration of the inert gas in the water. Therefore, option 1 and 2 are incorrect.

When an inert gas such as nitrogen gas (N2) is added to water, it is not soluble in the water. As a result, equilibrium is established between the gaseous nitrogen and the nitrogen dissolved in the water.The concentration of an inert gas in water will increase if the pressure of the gas above the liquid is reduced. Because the gas will move toward the area of low pressure, more gas molecules will be able to dissolve into the water when the pressure above the water decreases.On the other hand, increasing the volume of water and decreasing the temperature of the water would not affect the equilibrium concentration of the inert gas in the water. Therefore, option 1 and 2 are incorrect.

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Step 1 - Understand the behavior of an electrolyte

An electrolyte is a substance that, when dissolved in water, makes a solution capable of conducting electricity. Generally speaking, electrolytes are water-soluble compounds which produce free-ions in solution, such as salts, acids an bases:

Water does not conduct electricity by itself, because it do not have free ions. Only a solution can produce free-ions: that's why we need electrolytes. The greater the number of free-ions produced, the greater will be the conducvity.

We can measure the conductivity by attaching a light bulb to the circuit. The brighter the light, the stronger the electrolyte.

Step 2 - Determining the weak electrolyte

Since the only substance that do not turn the light on is C, we can conclude that all other substances are electrolytes. Note that B produces only a dimly light, which means he is the weak electrolyte.

Answer:

this claim may not be accurate because the blog is produced by someone who is not an expert in the field of human psychology.

Explanation:

Answer:

this claim may not be accurate because the blog is produced by someone who is not an expert in the field of human psychology.

Explanation: give the branliest to the otherperson :)

Answer:

increase.

Explanation:

as you cross the period the atomic size decrease makes the atoms to have more affinity to the coming electrons.

Answer:Shortwave radio frequencies are not affected and pass through the ionosphere.

Explanation:

Answer:

Gravity : Gravity is the force acting on objects that pulls it to the crust of the earth. It is the universal force of attraction between all matter.

Motion: Motion is the movement of objects from one position to another.

If the bromobenzene is added too quickly, biphenyl is formed as the side product with the Grignard reagent.

What is Grignard reagent?

Grignard reagent is an organomagnesium halide which has the formula RMgX where R is alkyl or aryl group, Mg is magnesium, X is an halide.

When bromobenzene is added too quickly to the Grignard reagent, biphenyl is formed as a by-product. the formation of the side product is enhanced by high temperature. So, this reaction is carried out in low temperature.

Therefore, biphenyl is formed as side product when bromobenzene is added quickly to the Grignard reagent. The structure of biphenyl is two benzene rings joined together.

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The mass of water produced is approximately 29.9 g (option c).

To determine the mass of water produced, we'll first need to find the balanced chemical equation for the reaction and then use stoichiometry to calculate the theoretical mass of water produced. Finally, we'll apply the given yield to find the actual mass of water produced.
1. Write the balanced chemical equation for the reaction of CH3OH with O2:
  2CH3OH + 3O2 → 2CO2 + 4H2O
2. Calculate the moles of CH3OH given:
  - Molecular weight of CH3OH = 12.01 (C) + 4.03 (H) + 16.00 (O) = 32.04 g/mol
  - Moles of CH3OH = 50.0 g / 32.04 g/mol ≈ 1.560 moles
3. Determine the moles of H2O produced based on the stoichiometry:
  - Moles of H2O = (1.560 moles CH3OH) × (4 moles H2O / 2 moles CH3OH) = 3.120 moles H2O
4. Calculate the theoretical mass of H2O:
  - Molecular weight of H2O = 1.01 (H) × 2 + 16.00 (O) = 18.02 g/mol
  - Theoretical mass of H2O = 3.120 moles × 18.02 g/mol ≈ 56.2 g
5. Apply the yield to find the actual mass of water produced:
  - Actual mass of H2O = (56.2 g) × (53.2% / 100) ≈ 29.9 g

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complete question:
what mass of water is produced by the reaction of 50.0g ch3oh with an excess of o2 when the yield is 53.2 percent?

a.10.0g

b.22.5g

c.29.9g

d.62.1g

The final temperature of a 10.0 g piece of iron initially at 25°C, if supplied with 9.5 J from a stove, is 27.11°C. The change in temperature of the iron is 2.11°C.

We can use the formula:

Q = mcΔT

where Q is the heat absorbed by the iron, m is the mass of the iron, c is the specific heat capacity of iron, and ΔT is the change in temperature.

In this case, the heat absorbed by the iron is 9.5 J, the mass of the iron is 10.0 g, the specific heat capacity of iron is 0.450 J g^(-1) °C^(-1), and the initial temperature is 25°C. We want to find the final temperature.

Let's rearrange the formula to solve for ΔT:

ΔT = Q / mc

Substituting the given values, we get:

ΔT = (9.5 J) / (10.0 g x 0.450 J g^(-1) °C^(-1))

ΔT = 2.11 °C

Therefore, the change in temperature of the iron is 2.11°C.

To find the final temperature, we add the change in temperature to the initial temperature:

T_final = T_initial + ΔT

T_final = 25°C + 2.11°C

T_final = 27.11°C

Therefore, the final temperature of the iron is 27.11°C.

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