What type of spectrum is produced when electromagnetic radiation is emitted or absorbed as electrons change energy levels in atom? (Please list one word only and lower case)

Answer:

Controls the movement of substances into and out of the cell.

They will move backward at a lower speed than the basketball moves forward.

The principle of conservation of linear momentum states that the sum of the initial momentum is equal to sum of final momentum.

Initial momentum = Final momentum

The forward momentum of the basketball = Backward momentum of the person and the chair

Since the mass of the person and the chair is greater than the mass of the basketball, the person and the rolling chair will move backward at a lower speed than the basketball moves forward.

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When ice melts a physical change occur. The correct answer is A.

The capacity to flow gives an ice cube the ability to alter shape as it melts. Its makeup stays the same, though. One instance of a physical change is melting. A physical change is when a sample of matter experiences a change in some of its qualities but not in its identity.

A reversible change in the substance's or object's physical characteristics can be referred to as the physical change. It is a physical change when ice melts. Water (H₂O) appears to alter when it turns from a liquid state to a solid state (ice). However, this shift is just physical, as the constituent molecules still consist of 11.19% hydrogen and 88.81% oxygen by mass.

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Answer:d

Explanation:

Answer:   D: getting rusty

Explanation:

The rusting of iron is a chemical change because it is two substances reacting together to make a new substance.

Answer:Long chain hydrocarbons have no electronegative functionality that would promote water solubility. As the hydrocarbon chain becomes longer and longer, the interaction between chains (in which water cannot participate) becomes greater in magnitude, and boiling points of the hydrocarbons tend to rise.

Explanation:

I do not have the exact answer, exactly what you wanted but just know this

Answer:

Explanation:

Mass m1 = 44.8776

Explanation:

(1) 1 m = 100 cm

1.45 m = 100 × 1.45 cm = 145 cm

(2) 1 kg = 1000 g

325 g = 0.325 kg

(3) 1 L = 1000 mL

0.0024 L= 2.4 mL

(4) 1 km = 1000 m

\(1.55\times 10^4\ m=1.55\times 10^4\times 0.001=15.5\ km\)

(5) 1 mm = 0.001 m

\(4.75\times 10^{-2}\ m=4.75\times 10^{-2}\times 1000\ mm\\\\=47.5\ mm\)

(6) 1 kg = 100000 cg

0.459 kg = 45900 cg

(7) 1 dm = 10⁻⁴ dm

5,995 dm = 5,995 × 10⁻⁴ km

(8) 1 g = 1000 mg

450 g = 450000 mg

(9) 1 dm = 100 m

0.003 dm = 0.3 mm

(10) 1 mL = 0.001 l

4.567 × 10⁴ mL = 45.67 L

Taking into account the definition of molarity, the molarity of a solution that contains 0.75 moles of solute in 0.250 L of solution is 3 moles/L.

Molarity is a measure of the concentration of a solution expressed in the number of moles dissolved per liter of solution.

In other words, molarity indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:

molarity= number of moles of solute÷ volume of solution

Molarity is expressed in units moles/L.

In this case, you have:

Replacing in the definition of molarity:

molarity= 0.75 moles÷ 0.250 L

Solving:

molarity= 3 moles/L

Finally, the molarity is 3 moles/L.

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Answer:

A

Explanation:

civil deals with desighning, construction work of natural or physical environment and a fits guess

The pH of the solution is approximately 2.06 (rounded to 2 decimal places).

In aqueous solutions, the pH is a measure of the acidity or alkalinity of a solution. It is defined as the negative logarithm (base 10) of the concentration of hydrogen ions ([H+]) in the solution.

In aqueous solutions, the pH and pOH are related by the equation:

\(pH + pOH = 14\)

Given that the \(pOH\) of the solution is 11.94, we can calculate the pH by subtracting the \(pOH\)from 14:

\(pH = 14 - pOH\)

Substituting the given value:

\(pH = 14 - 11.94\)

Calculating the value:

pH ≈ 2.06

Therefore, the pH of the solution is approximately 2.06 (rounded to 2 decimal places).

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Silver is known in the chemistry world as a noble metal which means it is resistant to corrosion, but not completely.

I hope my answer helped you! If you need more information or help, comment down below and I will be sure to respond if I am online. Have a wonderful rest of your day!

Answer:

What is the most likely source of nitrogen in runoff? Fossil fuel emissions.

Answer:

Carbohydrates can contain hydroxyl (alcohol) groups, ethers, aldehydes and/or ketones.

Explanation:

i really hope this helps you

No, the reasons for the discrepancy between the experimental and true density values would be provided.

The experimental density of the metal sample does not agree with the true value. Possible reasons for the discrepancy could include impurities in the sample, incomplete sample preparation, variations in experimental conditions (such as temperature or pressure), measurement inaccuracies, or limitations of the measuring instruments used. Other factors like experimental procedure, sample handling, or analytical techniques employed could also contribute to the deviation. It is crucial to carefully evaluate these factors and identify potential sources of error to improve the accuracy and reliability of density measurements in future experiments.

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Using the change of base rule to find the logarithm to four decimal places. the correct answer is 11.4235.

To find the logarithm of 143.2 using the change of base rule, we can choose any base we prefer. Let's use base 10 and natural logarithm (base e) for this calculation.

First, we'll use the change of base formula, which states that log(base b) x = log(base c) x / log(base c) b. In this case, we'll calculate log(base 10) 143.2.

We'll use the natural logarithm (ln) as our intermediary step. The natural logarithm of 143.2 can be calculated as ln(143.2).

Using a calculator, we find that ln(143.2) is approximately 4.9628.

Next, we need to calculate log(base 10) e, which is the logarithm of e with base 10. Using a calculator, we find log(base 10) e is approximately 0.4343.

Finally, we apply the change of base formula:

log(base 10) 143.2 ≈ ln(143.2) / log(base 10) e
                ≈ 4.9628 / 0.4343
                ≈ 11.4235

Rounding to four decimal places, the logarithm of 143.2 using base 10 is approximately 11.4235.

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The element that we can be able to use for the experiment in place of potassium is sodium.

We know that the elements that can be found in the same group does react in the same way. Now we know that we have to look about among the options so that we would be able to know element that is in the same group as potassium.

Given that both sodium and potassium are members of group 1, we have to look out for the element that element thus we have to select sodium.

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Based on Lana's diagram, the correct statement that explains the results of asexual reproduction is C. The offspring are genetically identical to the parent, because each offspring receives a complete copy of a single parent's chromosomes.

In the diagram, the parent cell divides into two identical daughter cells, each of which contains a complete copy of the parent cell's genetic material.

This type of reproduction, where a single parent produces offspring that are genetically identical to itself, is called asexual reproduction. It is the process by which many unicellular organisms, such as bacteria and some protists, reproduce.

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Answer:

jupiter,uranus ,neptune

Explanation:

They have all are planetary rings in the solar system

Neptune, Uranus, Jupiter have rings on them.

The Solar system is made up of 9 planets in order starting nearest the sun as  Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto

Of these planets , there are four that have rings which includes:

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Answer:

The correct answer is 66.1 g

Explanation:

According to Law of Conservation of the Mass, the mass of an isolated system is neither created or destroyed during chemical reactions. It is transformed. So, in a chemical reaction, the atoms of reactants are reoganizated by forming other compounds but the mass is conserved. Thus, the total mass of reactants is always equal to the total mass of products. If 23.6 g of a substance reacts with 42.5 g of another substance, the total mass of the products will be equal to the total mass of reactants:

23.6 g + 42.5 g = 66.1 g reactants = 66.1 g products

Therefore, the compound that would form a precipitate is option D, NaOH.

A precipitate is a solid that forms from a chemical reaction between two or more liquids or solutions. This solid typically forms when two solutions are mixed together and a chemical reaction occurs that causes one of the products to become insoluble in the mixture, resulting in a solid that falls out of the solution and settles at the bottom. Precipitates can vary in size, shape, and color depending on the specific chemical reaction and the properties of the substances involved.

Here,

To determine which of the given compounds would form a precipitate, we need to know the solubility rules for common ionic compounds. Here are the rules for the given ions:

Li2CO3: carbonates are generally insoluble, but Li2CO3 is an exception and is soluble in water

AgBr: silver halides (AgCl, AgBr, AgI) are generally insoluble, so AgBr would form a precipitate

Cr(NO3)2: nitrates (NO3-) are generally soluble, so Cr(NO3)2 would dissolve in water and not form a precipitate

NaOH: hydroxides (OH-) of Group 1 and most Group 2 metals are soluble, but NaOH is an exception and is only slightly soluble, so it would form a precipitate

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The Correct pair of Element and it's symbol ~

The levels of protein structure would be affected if all hydrogen bonding interactions were prevented are primary, secondary, tertiary, and quarternary structures.

There are 4 levels of protein structures:

Primary structures: Protein primary structure is the linear sequence of amino acids in a peptide or protein.

secondary structures: Protein secondary structure is the three-dimensional form of local segments of proteins.

tertiary structures: Protein tertiary structure is due to interactions between R groups in the protein.

quarternary structures: Protein quaternary structure is the fourth classification level of protein structure.

The levels of protein structure would be affected if all hydrogen bonding interactions were prevented are primary, secondary, tertiary, and quarternary structures.

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Answer:

a

Explanation:

potential energy is something that could happen but haven't yet

Answer:

Titanium(IV) Sulfide

Explanation:

Answer: °32= 0 °C.

Explanation:

Answer:

Explanation:

Please add the temperature readings from all three trials for both thermometers. Will do the calculation with readings.

Answer:

The number of proton of magnisium = 12

To determine the ratio of H2O to glucose, C6H12O6, first you need to solve for the unknown coefficients x1, x2, x3, and x4 using matrix methods , given the chemical equation for x1 and x4.

Given the chemical equationx1C6H12O6 + x2O2 → x3CO2 + x4H2OYou can determine the unknown coefficients x1, x2, x3, and x4 by writing equations for each element:Carbon (C):6⋅x1 + 0⋅x2 = 1⋅x3 + 0⋅x4Hydrogen (H):12⋅x1 + 0⋅x2 = 0⋅x3 + 2⋅x4Oxygen (O):6⋅x1 + 2⋅x2 = 2⋅x3 + 1⋅x4The above equations can be represented in matrix form as AX=B:6 0 1 0x1 0 x3 0 | 00 12 0 2 x1 x4 0 x2 | 0 6 2 1Then, the unknown coefficients can be solved using the following MATLAB code:X = [6 0 1 0; 0 12 0 2; 6 2 0 1; 0 0 0 6];B = [0; 0; 0; 6];X = inv(X);X = X * B;x1 = X(1);x4 = X(4);Thus, x1 = 1 and x4 = 6, which means that the ratio of H2O to glucose, C6H12O6, is x4/x1 = 6/1 = 6.

To determine the ratio of H2O to glucose, C6H12O6, you need to solve for the unknown coefficients x1, x2, x3, and x4 using matrix methods in MATLAB, given the chemical equation:x1C6H12O6 + x2O2 → x3CO2 + x4H2OThe coefficients can be determined by writing equations for each element present in the reaction. The element equation for carbon (C) can be given as:6⋅x1 + 0⋅x2 = 1⋅x3 + 0⋅x4The element equation for hydrogen (H) can be given as:12⋅x1 + 0⋅x2 = 0⋅x3 + 2⋅x4The element equation for oxygen (O) can be given as:6⋅x1 + 2⋅x2 = 2⋅x3 + 1⋅x4Then, the above equations can be represented in matrix form as AX=B:6 0 1 0x1 0 x3 0 | 00 12 0 2 x1 x4 0 x2 | 0 6 2 1where A is the coefficient matrix, X is the matrix of unknowns, and B is the matrix of constants.Using MATLAB code, the solution can be obtained by: X = [6 0 1 0; 0 12 0 2; 6 2 0 1; 0 0 0 6];B = [0; 0; 0; 6];X = inv(X);X = X * B;x1 = X(1);x4 = X(4);Thus, x1 = 1 and x4 = 6, which means that the ratio of H2O to glucose, C6H12O6, is x4/x1 = 6/1 = 6.

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