Which of the following is visible to o a person only because light from another source reflects that off of it?

Answer:

It depends on what type of test your speaking of, is it a state exam?

If you are passing a class and fail a test you will still pass. If you fail a class you do not need to take it again if you don't want to but you would have to take another class instead.

Answer: 0.133 mol/l

Explanation: molality = concentration = 0.400 mol/3.0 l

 A triglyceride containing a 16 carbon fatty acid chain can potentially yield approximately 98 ATP molecules through the process of beta-oxidation and subsequent energy production.

The number of ATP generated from a triglyceride containing 16 carbon fatty acid chains can be estimated through the process of beta-oxidation and subsequent energy production in the mitochondria.

For every cycle of beta-oxidation, a fatty acid chain is broken down into two-carbon units, which enter the citric acid cycle (also known as the Krebs cycle). During the citric acid cycle, high-energy electron carriers (NADH and FADH2) are produced.

These carriers then enter the electron transport chain (ETC), where ATP is generated through oxidative phosphorylation.

A general estimate is that each cycle of beta-oxidation produces around 14 ATP molecules. Since a 16-carbon fatty acid chain would undergo seven cycles of beta-oxidation (16/2 = 8 two-carbon units, but only seven cycles as the last cycle produces acetyl-CoA), we can approximate the ATP yield as 7 cycles × 14 ATP/cycle = 98 ATP.

However, it's important to note that this is a simplified estimation and the actual ATP yield can vary depending on factors such as the specific fatty acid chain and the efficiency of the metabolic pathways involved.

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Answer:

The answer is the last one only.

Explanation:

Light/sun gives energy and growth which makes the plants leaves/plant grow bigger.

Explanation:

Without the sun, plants wouldn't get the food that's needed to grow, reproduce and survive. plants need sunlight, water and carbon dioxide to live.

Answer:

acid

Explanation:

solution with pH less than 7 is acid

those with more that 7 is base

those equal to 7  is neutral

Answer:

flammability, toxicity, acidity, reactivity , and heat of combustion.

Explanation:

Answer:

Its the banana one

Explanation:

Answer:

524g CO2

Explanation:

Just took the quiz

The pressure inside the tire, converted to pascals, is approximately 8,555 N/m^2, or 8.56 × 10^3 Pa, using the appropriate number of significant figures.

To convert the pressure from pounds per square inch (psi) to pascals (Pa), we need to use the given conversion factors:

1 pound = 4.45 newtons

1 inch^2 = 6.45 centimeters^2 = (6.45/100)^2 square meters

First, let's convert psi to newtons per square inch (N/in^2):

28.0 psi * 4.45 N = 124.6 N/in^2

Now, let's convert newtons per square inch to pascals:

124.6 N/in^2 * ((6.45/100)^2) m^2 = 8,555.4125 N/m^2 (approximately)

To express the answer to the correct number of significant figures, we need to determine the number of significant figures in the given pressure value. Since the pressure is given as "28.0," it implies that there are three significant figures. Therefore, the pressure inside the tire, converted to pascals, is approximately 8,555 N/m^2, or 8.56 × 10^3 Pa, using the appropriate number of significant figures.

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The correct answers to the fill in the blank problems given above are as follows:

Mitotic phase is the part of the cell cycle that divides the material

This process happens only in somatic cells, also is known as body cells.

There are 4 parts of this process:

Mitosis can simply be defined as a special process of cell division in which a single cell divides into two different identical daughter cells.

Aside, mitosis; another major cell division which occurs in the cells of living organisms is the meiosis. Below are the phases involved in mitotic cell division, these are as follows:

In conclusion, it can be deduced from the explanation given above that mitosis is a process of cell division.

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Answer:

cannot be measure

Hope this helps :) !!!

Four peripheral hydrogen atoms and two singly-bonded nitrogen atoms make up the molecule of hydrazine.

Thus, It is a colourless, poisonous irritant and sensitizer in its anhydrous form, which harms the central nervous system and causes symptoms as severe as tumours and convulsions.

In addition to having a strong reducing agent that makes it highly explosive, hydrazine has a strong smell that is similar to that of ammonia.

Given this, it appears odd that over 100,000 metric tonnes of the substance are produced annually throughout the world. But hydrazine does have an impact on our daily activities. It can save our lives, give us food and clothing, keep us warm, and even transport us to the moon. It even has the ability to go back in time.

Thus, Four peripheral hydrogen atoms and two singly-bonded nitrogen atoms make up the molecule of hydrazine.

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Answer: 5.47177

For every Mile there is 1.60934 Kilometers

so we take 3.4 and multiply it by 1.60934

3.4 x 1.60934

= 5.47177 Km

The color codes can help us to know the formula of the molecule.

To determine the chemical formula from a molecular model, you need to identify the types and numbers of atoms in the molecule. Each atom is represented by a different symbol, such as H for hydrogen, C for carbon, and O for oxygen.

We do not have the color codes for the atoms in the molecule here thus we can't be able to tell for sure what the molecule should be. If we did have it, then the molecule can be known from the color codes.

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Answer:

All ionic substances are written as separate ions in solution

All ionic substances are written as separate ions in solution in a complete ionic equation. Therefore, option (C) is correct.

A complete ionic equation can be described as a particular chemical equation where charged atoms such as ions are expressed in a given solution. The complete ionic equations always contain all ions that are formed or act during a particular chemical reaction.

The net ionic equation can be described as an equation that provides information about ions that exists in an aqueous medium. Salts get dissolved in polar solvents such as water which are present as cations and anions in their dissolved state.

The ionic equation shows the chemical species that undergo a chemical change. The ions which are present on both sides of the equation are considered to be spectator ions. Therefore, in order to obtain the net ionic equation we can eliminate them.

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steam takes up the largest volume but  surprisingly as ice has larger volume than liquid.

In Water the  molecules are attracted to each other while at low temperature these molecules are held together in a rigid structure called as ice.

When temperature increases the molecules gains more energy which enables them to escape the lattice state and converted into water form, flow.  

At the highest temperature these molecules  gain huge amount of energy in which they can easily overcome the inter-molecular attraction that is gaseous state.

In gaseous state the molecules move freely.

The intermolecular forces in solid state of water are very strong while in liquid state it is moderate and in gaseous state  it is very weak.

The chemical composition of water in all three states can not change like physical state change.

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Answer:

Answer is no because,

Explanation:

Iodine is LESS REACTIVE than the elements above it in group 17 (fluorine, chlorine and bromine) it still forms compounds with many other elements. Although iodine is a non-metal, it displays some METALLIC properties. Xenon is one of the inert or noble gases and is odorless, colorless, tasteless and chemically NON REACTIVE

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When copper is placed in water, it reacts with the water molecules to form copper(II) ions and hydrogen gas. The reaction is exothermic, which means it releases heat energy into the surroundings. By measuring the temperature changes that occur, we can determine the amount of heat that is released by the reaction.

The temperature changes can be measured using a thermometer. We can place the copper metal in a container of water and take the initial temperature reading. Then, we can add the copper to the water and record the temperature change over time. By monitoring the temperature changes, we can observe the exothermic reaction taking place.

The heat released by the reaction between copper and water has many practical applications, including in the design of power plants and in the production of steam for heating and electricity generation. Therefore, understanding the heat released during this reaction is important for a variety of scientific and engineering fields.

In conclusion, step 7 of putting copper metal in water and measuring the temperature changes allows us to observe and measure the heat released by the exothermic reaction between copper and water, which has important applications in various scientific and engineering fields.

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Answer:

Aluminum

copper

Iron

Lead

The Final Slide:

Aluminum- 0.90

Copper- 0.35

Iron- 0.44

Lead- 0.12

Explanation:

I hope this helps! :))))

Exothermic refers to chemical interactions that aerobic respiration. Combustion reactions release higher energy. Endothermic refers to atoms and molecules that either use or absorb reactive power.

A chemical process known as an endothermic releases energy as heat or light. It is an endothermic reaction's opposite. Chemical equation expressed as reactants + products + energy. An reaction mechanism is one in which electricity is given off as light or warmth.

A response is deemed to be exothermic if it produces heat while also undergoing a net decrease in basic enthalpy change. Samples include those type of combustion, iron rust, including water froze. Exothermic processes are those that discharge heat and energy into the surroundings.

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The stoichiometric table and the rate law for the given elementary liquid phase reaction have been constructed. The rate constant and activation energy have been calculated, and the type of reaction energy has been specified as endothermic.

Stoichiometric table in terms of concentrations:

The stoichiometric table for the given reaction can be constructed as follows:

A + 2B → products

                             A                                B                                products

Feed         0.3*Cf                        0.7*Cf                                       0

Exit              (0.3-0.3X)*C             (0.7-0.7X)*C                                0

Change         -0.3XC                      -0.7XC                                     0

Where:

Cf = Total feed concentration

C = Concentration inside reactor

X = Conversion of A

Rate of reaction of A:

The rate of the reaction can be expressed as:

rA = -1/2 * dCA/dt = k*C^2

where, CA is the concentration of A and k is the rate constant.

Since the reaction is elementary, the rate law is proportional to the concentrations of the reactants raised to their stoichiometric coefficients.

The rate of disappearance of A = rate of appearance of B

rB = -dCB/dt = 2*rA

Therefore, the rate of reaction of A can be expressed as:

rA = (0.7Cf - 0.7C)/V = k*C^2

Substituting values, we get:

rA = (0.710 - 0.70.7X)/5 = k(0.3 - 0.3*X)^2

Calculation of k and E:

The rate constant k can be calculated using the Arrhenius equation:

k = A * exp(-Ea/RT)

where A is the frequency factor, Ea is the activation energy, R is the gas constant and T is the temperature in Kelvin.

Assuming the activation energy is 50 kJ/mol, we can calculate the rate constant at the given temperature of 333 K:

k = 0.00717 * exp(-50000/(8.314*333)) = 0.0001504

The reaction energy can be determined by calculating the activation energy using the rate constant at two different temperatures. Assuming the rate constant at 323 K is 0.000098, we can solve for Ea:

ln(k2/k1) = Ea/R * (1/T1 - 1/T2)

ln(0.000098/0.0001504) = Ea/8.314 * (1/323 - 1/333)

Ea = 43775 J/mol

The positive value of the activation energy indicates that the reaction is endothermic.

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The given chemical equation represents a reversible reaction in which two molecules of sulfur trioxide (SO₃) react to form two molecules of sulfur dioxide (SO₂) and one molecule of oxygen gas (O₂).

The problem states that a 1-liter flask contains 0.50 moles of SO₃, 0.20 moles of SO₂, and 0.30 moles of O₂. These three substances react with each other to reach equilibrium, which can be determined using the equilibrium constant (Kc).

At equilibrium, the concentration of oxygen gas (O₂) is given as 0.52 M. This information can be used to calculate the concentrations of sulfur trioxide (SO₃) and sulfur dioxide (SO₂) at equilibrium using the equilibrium constant (Kc) and the initial concentrations of the reactants.

Using the given equation for the equilibrium constant and the initial concentrations of the reactants, we can write:

Kc = [SO₂]²[O₂] / [SO₃]²

Substituting the given values, we get:

59 = [0.20 mol/L]² (0.52 mol/L) / [0.50 mol/L]²

Solving for SO₃], we get:

[SO₃] = \(\sqrt{[(0.20 mol/L)² (0.52 mol/L) / 59] }\)= 0.10 mol/L

Similarly, solving for [SO₂], we get:

[SO₂] = 2 [SO₃] = 0.20 mol/L

Therefore, at equilibrium, the concentrations of SO₃, SO₂, and O₂are 0.10 M, 0.20 M, and 0.52 M, respectively. This means that the reaction has favored the production of SO₂and O₂ over the reactant SO₃ at equilibrium.

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Answer: In a chemical reaction substances elements and compounds called reactants are changed into other substances compounds and elements called products.You can't change one element into another in a chemical reaction that happens in nuclear reactions.

Explanation:

Answer:

by losing one or more electrons*

To graph the function g(x) = f(-x), you can start with the graph of f(x) and then reflect it about the y-axis.

To find the graph of the function g(x) = f(-x), we can start with the graph of the function f(x) and then reflect it about the y-axis.

If the graph of f(x) is symmetric with respect to the y-axis, meaning it is unchanged when reflected, then g(x) = f(-x) will have the same graph as f(x).

However, if the graph of f(x) is not symmetric with respect to the y-axis, then g(x) = f(-x) will be a reflection of f(x) about the y-axis.

In either case, the resulting graph of g(x) = f(-x) will be symmetric with respect to the y-axis.

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Answer:

Sodium Hydroxide + Sulfuric Acid = Sodium Sulfate + Water

2NaOH + H2SO4 → Na2SO4 + 2H2O

Explanation:

To balance a chemical equation, enter an equation of a chemical reaction and press the Balance button. The balanced equation will appear above.

Use uppercase for the first character in the element and lowercase for the second character. Examples: Fe, Au, Co, Br, C, O, N, F.

Ionic charges are not yet supported and will be ignored.

Replace immutable groups in compounds to avoid ambiguity. For example, C6H5C2H5 + O2 = C6H5OH + CO2 + H2O will not be balanced, but XC2H5 + O2 = XOH + CO2 + H2O will.

Compound states [like (s) (aq) or (g)] are not required.

You can use parenthesis () or brackets [].

Answer:

because it is

To know the end point we use phenolphthalein as indicator. End point is a point where completion of reaction happen. Therefore, the concentration of the unknown H\(_2\)SO\(_4\) solution is 0.11M.

Titration is a technique by which we know the concentration of unknown solution using titration of this solution with solution whose concentration is known.

According to the neutralization law,

M₁V₁=M₂V₂

where,

M₁ = molarity of  H2SO4 solution

V₁ = volume of  H2SO4 solution

M₂ = molarity of KOH solution

V₂ = volume of KOH solution

substituting all the given values we get

0.1422 M × 35.00 ml=M₂×43.22 mL

M₂= 0.11M

Therefore, the concentration of the unknown H\(_2\)SO\(_4\) solution is 0.11M.

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Answer:

the answer to the answer above is motion