The roots of a plant help to anchor the plant to soil, and are also used for food storage and water extraction. Roots are made up of tissues, such as xylem, Phloem, and pith. In which level of organization would the roots of a plant most likely be classified?

In one of the trials, the purpose of using water/soap solution was to compare the cleanliness of the hand with washing by water alone.

Hand washing is one of the simplest, most effective ways to avoid getting sick and prevent the spread of germs. Washing your hands with soap and water is still one of the most important steps you can take to avoid getting sick and to avoid spreading germs to others. The purpose of using water/soap solution for one of the trials was to compare the cleanliness of the hand with washing by water alone.The experiment involves two trials to investigate the effectiveness of soap and water in removing bacteria from hands. In one trial, the participant washed their hands with soap and water. While in the other trial, the participant washed their hands with water alone. After washing, their hands were pressed on a petri dish with culture medium to grow the bacteria. Then, the plates were placed in an incubator at 37°C for two days to grow bacteria. The soap and water solution are effective in removing bacteria from hands because the soap helps to lift dirt, grease, and microbes off skin and onto the surfaces of the lather, so that it can be rinsed away by water.

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Illustration of the missing intermediate and add curved arrows for the production of phenylethyne by the double dehydrohalogenation of 2,2-dibromoethylbenzene is given in the attachment.

Dehydrohalogenation is an elimination reaction used in chemistry to get rid of a hydrogen halide from a substrate. Although the reaction is frequently linked to the synthesis of alkenes, it has additional uses.

Alkyl halides have historically served as the substrates for dehydrohalogenations. Halides without a C-H bond on an adjacent carbon are not acceptable substrates for alkyl halides because they cannot produce an alkene.

Halides made of aryl are similarly inappropriate. Chlorobenzene dehydrohalogenates when subjected to a strong base, releasing phenol through a benzyne intermediate. Many alkyl chlorides change into the equivalent alkene when treated with a strong base. It is a kind of elimination reaction and is also known as a-elimination reaction.

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Explanation:

V is not an SI base unit. (C)

Volume can be expressed as m³ in units.

In turn, m is the SI base units for length.

The equilibrium constant expression for the reaction 2CO(g) + 4H2(g) ⇌ 2CH3OH(g) is given by Kp = (Pch3oh)² / (PCO)² (PH2)⁴, where Pch3oh, PCO, and PH2 are the partial pressures of methanol, carbon monoxide, and hydrogen, respectively, at equilibrium.

To calculate Kp, we need to determine the equilibrium partial pressures of the gases. Using an ICE table, we can determine the equilibrium concentrations in terms of the initial concentrations and the extent of the reaction.

Assuming the initial partial pressures of CO and H2 are P, we can write:

2CO(g) + 4H2(g) ⇌ 2CH3OH(g)

Initial: P, P, 0

Change: -2x, -4x, +2x

Equilibrium: P - 2x, P - 4x, 2x

Here, x represents the extent of the reaction. At equilibrium, the total pressure is given by Ptotal = (P - 2x) + (P - 4x) + 2x = 2P - 2x.

Using the ideal gas law, we can relate the equilibrium partial pressures to the number of moles of each gas:

nco = PCO V / RT

nh2 = PH2 V / RT

nch3oh = Pch3oh V / RT

where V is the volume of the gas mixture, R is the gas constant, and T is the temperature in Kelvin.

Substituting these expressions into the equilibrium constant expression, we get:

Kp = ((Pch3oh)² / (PCO)² (PH2)⁴) (RT / V)²

To calculate Kp, we need to determine the equilibrium partial pressures of the gases. Using the ICE table, we can write:

Kp = ((2x/V)²) / ((P - 2x)/V)² (P-4x/V)⁴

Simplifying the expression and substituting the values of the initial pressures, we get:

Kp = (4x² / (P - 2x)⁴ (P - 4x)¹⁶)

Since x is a function of Kp, we can rearrange the expression to solve for Kp:

Kp = (4x² / (P - 2x)⁴ (P - 4x)¹⁶)

Kp = (4Pch3oh² / (PCO² (PH2)⁴)) (RT / V)²

Given the temperature and volume of the reaction mixture, we can now calculate Kp using the values of the equilibrium partial pressures.

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Answer:

first answer

Explanation:

The resulting mixture is basic because the KOH is a strong base and the HBr is a weak acid.

To determine whether the resulting mixture is acidic, basic, or neutral, the concentration of hydroxide ions (OH-) and hydronium ions (H+) in the solution is compared. Since KOH is a base and HBr is an acid, it is essential to determine the net ionic equation. Here's the balanced chemical equation:

KOH(aq) + HBr(aq) → KBr(aq) + H2O(l)

Since the balanced equation represents a neutralization reaction, the concentration of OH- and H+ can be determined based on the reaction. Therefore, in the reaction, the number of OH- ions will be equal to the number of H+ ions.In the above reaction, 1 mole of KOH reacts with 1 mole of HBr to form 1 mole of KBr and 1 mole of water. As a result, the mole of KOH added in the reaction is;

Number of moles of KOH = volume × concentration= 3.0 ml × (4.0 mol/L)/1000 mL/L= 0.012 mol

The mole of HBr reacted in the reaction is:

Number of moles of HBr = volume × concentration= 6.0 mL × (0.30 mol/L)/1000 mL/L= 0.0018 mol

Therefore, the number of moles of HBr is less than the number of moles of KOH. Since KOH is a base and HBr is an acid, the net ionic equation is as follows:

H+ + OH- → H2O

In this reaction, the number of OH- ions is greater than the number of H+ ions; therefore, the solution is basic. Therefore, the resulting mixture is basic.

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The medication can treat people who have the disease described. According to the commercial, the drug has FDA approval to treat a condition whose symptoms are listed.

Additionally, the narrator notes that the medication only comes with a prescription and has 1% of the active substance. We can deduce from this information that the drug can effectively treat persons who have the condition generating these symptoms, but obtaining it requires a prescription. The commercial provides no support for the other possibilities.

Therefore, the correct option is D.

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The metals that are able to displace iron sulfate from solution are magnesium and aluminum.

The electrochemical series is a series that shows the reactivity of the metals. We must note that the order of the reactivity of the metals depends on the electrode potential of the metal. The metals that have a higher electrode potential would tend to react better and faster.

Also note that, the metals that are higher in the electrochemical series are able to displace the metals that are lower in the series from their aqueous solutions. This implies that if we add a metal to a solution that contains a meta that is lower in the electrochemical series, the lower meta is discharged from solution.

As we can see, when we add each of these metals to the iron sulfate solution, the only time that we would be able to have a reaction is when  we add the aluminum or the magnesium metals.

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C

The trout will suffer from disease

Answer:

C

Explanation:

I got it correct on a quiz I did that had this question

Quantitatively, chemical reactions are determined by the reactant as well as product molecules.

A chemical reaction will be preferred as a process that results in the chemical change of one group of chemical substances into another set of chemical compounds.

A reactant would be a material that's also present when a chemical reaction begins. Products are still the substance to the right of the arrow. A product is a material that remains after a chemical reaction has been completed.

Quantitatively, chemical reactions are determined by the reactant as well as product molecules.

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A chemical equation must be balanced. this means that the same number and type of atoms must appear on both sides of the equation .

In other words, both sides of the reaction have an equal balance of mass and charge. The amount and types of atoms on both sides of the reaction arrow must match for the chemical equation to be balanced.

To comply with the law of conservation of mass, which stipulates that matter cannot be generated or destroyed in a closed system, chemical equations must be balanced.

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The number of reactants is less than the number of products in a decomposition reaction.

This is the type of chemical reaction which involves a reactant being broken down into two or more products.

This means the number of product is always greater than the reactant which is why option C was chosen.

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Answer:

Explanation:

what are the statments i can't help till i have the posable answers

Answer:

Proton

Explanation:

It has a positive charge

Answer:

electron

Explanation:

The selenate ion, SeO32-, is classified as a polyatomic anion.

Polyatomic ions are groups of two or more atoms that carry a net electrical charge, whereas anions are negatively charged ions that have gained one or more electrons. The selenate ion, SeO32-, contains one selenium atom and three oxygen atoms, and carries a net negative charge of 2.

Polyatomic anions like SeO32- are important in many chemical reactions and play a crucial role in biological systems. For example, selenate ions can be toxic to plants at high concentrations, but they are also an essential nutrient for many living organisms, including humans, when consumed in small amounts as part of a balanced diet.

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Answer:

Answer:

d

Explanation:

plato

Answer:

d

Explanation:

46.12 grams of water are produced when 35 grams of \(C_6H_1_0\) react with 45 grams of \(O_2\).

The balanced equation for the combustion of C6H10 (cyclohexene) with O2 is:

\(C_6H_{10} + O_2 - > CO_2 + H_2O\)

From the balanced equation, we can see that 1 mole of  \(C_6H_1_0\) reacts with 6 moles of O2 to produce 6 moles of water.

First, let's calculate the number of moles of C6H10 and O2:

Molar mass of C6H10 = 6(12.01 g/mol) + 10(1.01 g/mol) = 82.16 g/mol

Number of moles of C6H10 = mass / molar mass = 35 g / 82.16 g/mol ≈ 0.426 mol

Molar mass of O2 = 2(16.00 g/mol) = 32.00 g/mol

Number of moles of O2 = mass / molar mass = 45 g / 32.00 g/mol ≈ 1.406 mol

From the stoichiometry of the balanced equation, we can determine that 0.426 moles of C6H10 will produce 0.426 * 6 = 2.556 moles of water.

Now, let's calculate the mass of water produced:

Molar mass of H2O = 2(1.01 g/mol) + 16.00 g/mol = 18.02 g/mol

Mass of water = number of moles of water * molar mass of water

                        = 2.556 mol * 18.02 g/mol

                        ≈ 46.12 g

Therefore, approximately 46.12 grams of water are produced when 35 grams of C6H10 reacts with 45 grams of O2.

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Answer:

joules

Heat is the transfer of thermal energy from a system to its surroundings or from one object to another as a result of a difference in temperature. Heat is measured in joules (J).

Explanation: Mrk me brainliest please

Answer: Joules or calories

Answer:

group 2

Explanation:

Based on the information given, there is Lansing city among the options provided that is located at approximately 45° north latitude and 85° west longitude. Option B

To determine the city located at approximately 45° north latitude and 85° west longitude, we can refer to the given list of cities and their corresponding latitude and longitude coordinates.

Based on the latitude and longitude values provided, the city located at approximately 45° north latitude and 85° west longitude is Lansing. Lansing is the capital city of the state of Michigan and is situated in the Lower Peninsula of Michigan.

Boise, Denver, Austin, Saint Paul, Madison, Lansing, Indianapolis, Nashville, and Atlanta are all listed cities, but by examining their approximate latitude and longitude coordinates, we can see that Lansing is the closest match to the given coordinates.

It's important to note that the accuracy of the answer may depend on the precision of the latitude and longitude values provided for each city. However, based on the information given, Lansing is the city that aligns closest to the approximate coordinates of 45° north latitude and 85° west longitude.

Option B

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Answer:

yo what

Explanation:

Answer:

x is calcium and y is chlorine

these are the p block elements

calcium belongs 4 th period and chlorine belongs to period 3rd

they forms ionic bond

chemical formula is

Ca+2 Cl-

CaCl2

Explanation:

give me brainly hope i helped!!!

Hazardous materials are grouped into classes identifying their similarities in composition and structure.

The hazardous materials are grouped into classes in order to tell us about the severity of hazard and it is done on the basis of similarity in composition.

So we can conclude that hazardous materials are grouped into classes identifying their similarities in composition and structure.

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The bond order for a second-period diatomic particle containing five electrons in antibonding molecular orbitals and eight electrons in bonding molecular orbitals is 1.5

Bond order is defined as the number of electrons in bonding molecular orbitals minus the number of electrons in antibonding molecular orbitals divided by two. As a result, we may determine the bond order of this diatomic particle by the formula: Bond order = (number of bonding electrons - number of antibonding electrons) / 2

Bond order = (8 - 5) / 2

Bond order = 1.5.

This diatomic molecule, according to the bond order, is a stable molecule since the bond order is greater than 1, indicating that it is a double bond. The molecule has an overall bond strength that is greater than a single bond, but not as strong as a triple bond. So therefore he bond order for a second-period diatomic particle containing five electrons in antibonding molecular orbitals and eight electrons in bonding molecular orbitals is 1.5

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Answer:

C. HCI(g)

Explanation:

The following equation between hydrogen gas (H2) and oxygen gas (O2) is given below:

H2(g) + Cl2(g) ►

Based on these unbalanced equation, the products of the reaction was not given, however, if one molecule of hydrogen and oxygen combine, hydrogen chloride (HCl) should be produced as the product of the reaction as in:

H2(g) + Cl2(9) ► 2HCl(g)

Answer:

3785.4g

Explanation:

210.3 mol of water are

210.3 mol × (18.0g/mol) = 3785.4g

ANSWER

The arrow will be shifted to the right (OPTION B)

EXPLANATION:

Firstly, we need to write out the chemical reaction equation

From the reaction above, you will see that heat is one of the products, this means that the reaction is n exothermic reaction.

An exothermic reaction is a type of reaction in which heat is released to its surroundings.

In an exothermic reaction, a decrease in temperature will shift the equilibrium to the right