Acetone molecule polor or nonpolar?

The hydrogen can be produced from water using renewable energy sources, which makes it more sustainable.

If we based our energy on hydrogen, two major economic or global problems that could be alleviated are:

1. Climate change: This is a global issue that requires an immediate response. The world needs to move away from carbon-emitting fossil fuels. Burning hydrogen fuel emits only water and does not release greenhouse gases. If the world shifts to hydrogen fuel, it will reduce carbon emissions and help to slow down climate change.

2. Dependence on Oil: Most countries are dependent on oil. The price of oil is volatile, and the demand and supply fluctuate due to political, economic, and weather events. This dependence on oil is a major economic challenge for many countries. If we based our energy on hydrogen, we could reduce our dependence on oil and decrease oil imports, which could significantly improve the economy of countries that do not produce oil.

To know more about the hydrogen, visit:

https://brainly.com/question/31018544

#SPJ11

Answer:

A. N2(g) + 3H2(g) Right arrow. 2NH3(g)

B.C(s) + 2H2(g) Right arrow. CH4(g)

Explanation:

Answer:

a and b

Explanation:

second question

miultiplu second eq by 2

The second reaction, C2H6(g) + 5O2(g) → 2 CO2(g) + 3 H2O(g), is least likely to be an elementary step in a reaction mechanism. This is because it involves the simultaneous collision of seven molecules, which is very unlikely to occur in a single step.

Elementary steps usually involve the collision of one or two molecules, or the breaking or formation of a bond between two atoms or molecules. The other reactions listed all involve one or two molecules colliding, or the breaking or formation of a bond between two atoms or molecules, and are more likely to be elementary steps in a reaction mechanism.

This is because the probability of multiple molecules colliding simultaneously is lower than that of a single molecule colliding with another molecule.

Therefore, the second reaction listed, C2H6(g) + 5O2(g) → 2 CO2(g) + 3 H2O(g), is least likely to be an elementary step in a reaction mechanism due to the large number of particles involved in the collision. Instead, this reaction is likely to proceed through a series of multiple elementary steps that involve the sequential breaking and formation of multiple bonds between atoms and molecules.

Learn more about reaction mechanism here:

https://brainly.com/question/26690612

#SPJ4

The balanced equation of magnesium and sulfuric acid is:

The student was have seen an explosive reaction if sodium was placed in water.

The order of the reactivities of the metals from most to least reactive is: lithium >> calcium >> copper

It would be difficult to determine the order of reactivity of magnesium and zinc because they show the same reaction. This can be determined by finding out which metal displaces the other from the solution of their salt.

Reactive metals are metals that easily form positive ions by readily giving up or donating their electrons.

The reactive metals are mainly found in group 1A and group 2A of the periodic table.

Reactive metals react with water to liberate hydrogen gas.

For example: 2 Li (s) + 2 H₂O ---> 2 LiOH (aq) + H₂ (g)

Reactive metals react with dilute acids to liberate hydrogen gas and form salts.

Mg + 2 HCl (aq) ---> MgCl₂ (aq) + H₂ (g)

The rate of the reactions above decreases with a decrease in the reactivity of the reactive metals.

Learn more about reactive metals at: https://brainly.com/question/25103661

#SPJ1

Answer:

Chromatography?

Explanation:

When a pure sample is run next to a tested substance to check if it is a component in the mixture it is called a ;  Reference value

A reference value in a test is the average of repeated value gotten from laboratory measurements carried out in the lab using an accurate measurement tool. It is the bench mark value for which the value of any tested substance will be compared to.

Therefore to verify if a tested substance is a component in the mixture we have to run it next to a pure sample ( reference value ).

Hence we can conclude that When a pure sample is run next to a tested substance to check if it is a component in the mixture it is called a ;  Reference value

Learn more :  https://brainly.com/question/18657790

The more kinetic energy a substance has, the warmer it will be and the faster particles will be moving, which reduces the density of the substance

Explanation:

1397.4 uranium atoms......

Answer: P2O5 is the empirical formula.

Explanation: When given percentages you can assume that many grams of each atom are in the compound. Then you divide grams by the molar mass of each element, giving you moles. Once you have moles, divide by the smaller molar amount, which should give you 1 mol of Phosphorus and 2.5 mol of Oxygen. Then multiply by 2 in order for both moles to be a whole number. This gets you 2 and 5.

Answer:

Each sample has the same number of molecules.

Explanation:

This is true by Avogadro's law.

Answer: 3-methyl-ethoxy-propanol

Explanation:

The organic molecule CH2OCH2CHOH is a diol, which means it contains two hydroxyl (-OH) groups. It is also known as ethylene glycol, and it has the molecular formula C2H6O2.

Ethylene glycol is a colorless, odorless, and sweet-tasting liquid that is commonly used as a solvent, antifreeze, and in the production of polyester fibers and resins.

It is also highly toxic if ingested, as it can cause kidney failure and other serious health problems.

Therefore, it is important to handle ethylene glycol with care and follow proper safety precautions when using it in laboratory or industrial settings.

To know more about ethylene glycol, visit:

https://brainly.com/question/10405060

#SPJ1

Answer:

H2S is a hydride of sulfur while SO2 is an oxide of sulfur.

Explanation:

Answer:

4 moles

Explanation:

Oxygen gas is O2   (two atoms of oxygen)

2 H2 + O2  = 2 H2 O    

          one mole of oxygen gas produces TWO moles of water

               so you need 4 moles of O2 to produce 8 moles of water

Answer:

(CH3COO)2 + redP + Cl2 → ClCH2COOH + HCl

Explanation:

This is an example of halogenation of carboxylic acids at alpha carbon atom. In this reaction, red phosphorus and chlorine are treated with carboxylic acids having alpha hydrogen atom followed by hydrolysis to form alpha chloro carboxylic acid.

Answer:

The answer is carbon and silicon

Answer:A balanced chemical equation provides a great deal of information in a very succinct format. Chemical formulas

provide the identities of the reactants and products involved in the chemical change, allowing classification of the

reaction. Coefficients provide the relative numbers of these chemical species, allowing a quantitative assessment

of the relationships between the amounts of substances consumed and produced by the reaction. These quantitative

relationships are known as the reaction’s stoichiometry, a term derived from the Greek words stoicheion (meaning

“element”) and metron (meaning “measure”). In this module, the use of balanced chemical equations for various

stoichiometric applications is explored.

The general approach to using stoichiometric relationships is similar in concept to the way people go about many

common activities. Food preparation, for example, offers an appropriate comparison. A recipe for making eight

pancakes calls for 1 cup pancake mix, 3

4

cup milk, and one egg. The “equation” representing the preparation of

pancakes per this recipe is

1 cup mix + 3

4

cup milk + 1 egg ⟶ 8 pancakes

If two dozen pancakes are needed for a big family breakfast, the ingredient amounts must be increased proportionally

according to the amounts given in the recipe. For example, the number of eggs required to make 24 pancakes is

24 pancakes ×

1 egg

8 pancakes = 3 eggs

Balanced chemical equations are used in much the same fashion to determine the amount of one reactant required to

react with a given amount of another reactant, or to yield a given amount of product, and so forth. The coefficients in

the balanced equation are used to derive stoichiometric factors that permit computation of the desired quantity. To

illustrate this idea, consider the production of ammonia by reaction of hydrogen and nitrogen:

N2

(g) + 3H2

(g) ⟶ 2NH3

(g)

This equation shows ammonia molecules are produced from hydrogen molecules in a 2:3 ratio, and stoichiometric

factors may be derived using any amount (number) unit:

2 NH3 molecules

3 H2 molecules or

2 doz NH3 molecules

3 doz H2 molecules or

2 mol NH3 molecules

3 mol H2 molecules

These stoichiometric factors can be used to compute the number of ammonia molecules produced from a given

number of hydrogen molecules, or the number of hydrogen molecules required to produce a given number of

ammonia molecules. Similar factors may be derived for any pair of substances in any chemical equation.

Explanation:

Answer:

2.3 kg.

Explanation:

The balanced equation tells us that 2 moles of sodium (Na) reacts with 1 mole of sulfuric acid (H2SO4) to produce 1 mole of hydrogen gas (H2).

To calculate the mass of sodium needed to produce 100g of hydrogen gas, we need to use the following steps:

Calculate the number of moles of hydrogen gas produced from 100g of hydrogen gas.

Use the mole ratio from the balanced equation to determine the number of moles of sodium required to produce that amount of hydrogen gas.

Convert the moles of sodium to grams using the molar mass of sodium.

Step 1:

The molar mass of hydrogen gas (H2) is 2 g/mol. Therefore, 100g of hydrogen gas is equal to 100/2 = 50 moles of H2.

Step 2:

From the balanced equation, 2 moles of Na reacts with 1 mole of H2. So, the number of moles of Na required to produce 50 moles of H2 is:

2 moles Na / 1 mole H2 = 2 * 50 = 100 moles Na

Step 3:

The molar mass of sodium (Na) is 23 g/mol. Therefore, the mass of sodium required to produce 100g of hydrogen gas is:

100 moles Na * 23 g/mol = 2300g or 2.3 kg of Na

Therefore, the mass of sodium needed to produce 100g of hydrogen gas is 2.3 kg.

To find the empirical formula of a compound, we must first calculate the mole ratio of each element in the compound. To do this, we need to convert the given masses of each element into moles. Once we have the mole ratio of each element, we can write the empirical formula.

The atomic masses of Tl (#81), carbon, hydrogen and oxygen are 204.38 g/mol, 12.01 g/mol, 1.008 g/mol and 16.00 g/mol respectively.Moles of Tl = 0.463 g / 204.38 g/mol = 0.00226 molMoles of C = 0.0544 g / 12.01 g/mol = 0.00453 molMoles of H = 0.00685 g / 1.008 g/mol = 0.0068 molMoles of O = 0.0725 g / 16.00 g/mol = 0.00453 molWe can see that the mole ratio of Tl, C, H and O is 1 : 2 : 3 : 2.

Therefore, the empirical formula of the compound is TlC2H3O2.

To know more about mole visit:-

https://brainly.com/question/30892840

#SPJ11

Radon is a naturally occurring radioactive gas that may cause lung cancer.

Radon is a chemical element with the symbol as Rn and atomic number as 86. It is a radioactive, colorless, odorless and tasteless noble gas that occurs naturally as a decay product of radium. It is the heaviest noble gas and is considered to be one of the rarest elements on the Earth.

Radon is highly radioactive and is significant contributor to the background radiation dose received by most of the people. It is the second leading cause of lung cancer after smoking, and exposure to high levels of radon has also been linked to an increased risk of other types of cancer.

To know more about radon, refer

https://brainly.com/question/1121893

#SPJ11

Rounding to the nearest whole number, the percentage increase in the partial pressure of water vapor in the atmosphere for a 2-degree increase in temperature is approximately 7%

The percentage increase in the partial pressure of water vapor in the atmosphere for a 2-degree increase in temperature can be estimated using the Clausius-Clapeyron equation, which describes the relationship between temperature and the saturation vapor pressure of water.

The equation states that for every 1-degree Celsius increase in temperature, the saturation vapor pressure of water increases by approximately 7%. Since we have a 2-degree increase in temperature, we can expect the partial pressure of water vapor to increase by approximately 14%.

Therefore, rounding to the nearest whole number, the percentage increase in the partial pressure of water vapor in the atmosphere for a 2-degree increase in temperature is approximately 7%.

It's worth noting that the relationship between temperature and water vapor content is complex and influenced by other factors such as humidity, air pressure, and the presence of other gases in the atmosphere. However, the Clausius-Clapeyron equation provides a reasonable estimation of the relative increase in water vapor with temperature changes within a certain range.

learn more about temperature here:

https://brainly.com/question/17088012

#SPJ11

When 3-methyl-1-hexanol is treated with pyridinium chlorochromate, the product formed is 3-methyl-1-hexanal, an aldehyde.

Pyridinium chlorochromate (PCC) is an oxidizing agent that can selectively oxidize alcohols to aldehydes or ketones without further oxidation to carboxylic acids.

In the reaction with 3-methyl-1-hexanol, PCC oxidizes the hydroxyl group of the alcohol to a carbonyl group, resulting in the formation of the aldehyde.

3-methyl-1-hexanal is an aldehyde with a six-carbon chain and a methyl group attached to the third carbon atom. It is a colorless liquid with a pleasant odor and is used in the manufacture of flavors and fragrances.

The oxidation of alcohols to aldehydes or ketones is an important reaction in organic chemistry and has many applications in the synthesis of organic compounds.

PCC is a commonly used reagent for this type of oxidation due to its mild and selective nature, which allows for the oxidation of primary alcohols to aldehydes without over-oxidation to carboxylic acids.

To know more about pyridinium chlorochromate click on the below link:

https://brainly.com/question/28099011#

#SPJ11

Answer:

Chromate Chemical Formula

Explanation:

The formula of chromate is CrO42-. The chromate ion usually consists of one chromium atom (+6 oxidation state) and four oxide atoms. The overall charge is -2.

Aptitude Test Formulas: Right Angle Formula

Complex Number Power Formula: Structural F...

Heat Of Solution Formula: Integers Formula

Volume Of Parallelepiped: Prime Number For...

It does not necessarily indicate that the two compounds are different from each other.

a. False. An impurity does not always lower the melting point of an organic compound. In some cases, impurities can raise the melting point of a substance. The effect of an impurity on the melting point depends on the specific interactions between the impurity and the compound. Impurities can disrupt the crystal lattice structure of the compound, which can either hinder or facilitate the melting process.

b. False. While a sharp melting point is typically associated with a pure single compound, it does not guarantee it. A sharp melting point indicates that the substance undergoes a phase transition over a narrow temperature range. However, it is possible for mixtures of compounds to exhibit sharp melting points if the components have similar melting points and form eutectic mixtures. Therefore, a sharp melting point does not necessarily imply purity.

c. False. The lack of a decrease in the melting point of compound X upon addition of compound A does not necessarily mean that X is identical to A. It is possible that compound A and X do not form a solid solution or do not have a significant impact on each other's melting points. The melting point depression depends on the solubility of A in X and the extent of the molecular interactions between the two compounds.

d. False. The lowering of the melting point of compound X upon addition of compound A does not exclude the possibility that X and A are identical. The depression of the melting point can occur due to the formation of a solid solution between X and A or due to a decrease in the overall crystallinity of X. It does not necessarily indicate that the two compounds are different from each other.

To learn more about compounds visit;

https://brainly.com/question/14117795

#SPJ11

Our current understanding of the atom is based on Dalton's early 19th-century idea of atomism, which was developed from meteorological investigations. John Dalton was just a meteorologist, an expert on color blindness, and a teacher, but he will be most widely recognized for creating the idea of atomism.

A scientist is someone who meticulously gathers data and uses it to develop theories, test those hypotheses, and further knowledge and understanding. Despite the fact that the name "scientist" predates Aristotle by more than two millennia, he is frequently referred to as the first scientist. He invented the methods of reasoning, observation, inquiry, and demonstration in Greece in the fourth century BC.

Because they provide specialized explanations for how the world functions, scientists play a crucial role in society. Science is a powerful tool for survival, despite the fact that it doesn't always provide us with joy, and humans have spent considerable time starting to figure out how to do both.

To know more about Scientist visit:

https://brainly.com/question/30668213

#SPJ4

Hi! In an organic redox reaction, you can indeed identify the reduced and oxidized organic molecules by monitoring the charges between the reactants and products. In a redox reaction, there is a transfer of electrons between molecules, leading to a change in their oxidation states. To understand this better, let's break down the two processes involved in a redox reaction: reduction and oxidation.

Reduction corresponds to a gain of electrons by a molecule, causing a decrease in its oxidation state. This means that the reduced molecule becomes more negatively charged or less positively charged. In organic reactions, reduction often involves the addition of hydrogen atoms or the removal of oxygen atoms.
On the other hand, oxidation corresponds to a loss of electrons by a molecule, resulting in an increase in its oxidation state. This causes the oxidized molecule to become more positively charged or less negatively charged. In organic reactions, oxidation typically involves the removal of hydrogen atoms or the addition of oxygen atoms.
To recognize the reduced and oxidized organic molecules in a redox reaction, follow these steps:
1. Determine the oxidation state of each atom in the reactants and products.
2. Identify any changes in the oxidation state between the reactants and products.
3. The molecule with a decreased oxidation state has undergone reduction (gained electrons).
4. The molecule with an increased oxidation state has undergone oxidation (lost electrons).
By tracking these changes in oxidation states and charges, you can easily recognize the reduced and oxidized organic molecules in a redox reaction.

For more information on oxidation state see:

https://brainly.com/question/17161178

#SPJ11

If you add 5 ml of 0.5 M NaOH solution to 20 ml each of buffer B (with a pH of 4.03) and buffer C, the buffer whose pH will change the least is buffer B.

What is a buffer?

A buffer is a solution that resists changes in pH when acid or alkali is added. A buffer solution is a solution that contains a weak acid and its corresponding weak base or a weak base and its corresponding weak acid.

The Henderson-Hasselbalch equation can be used to calculate the pH of a buffer solution before and after adding a strong base or acid.

The equation is pH = pKa + log ([A-]/[HA])

where:pKa is the dissociation constant for the acid[A-] is the conjugate base of the acid when a command (such as NaOH) is added to a buffer solution, the base reacts with the weak acid to form the conjugate base of the acid and water. The addition of the conjugate base of the acid causes the pH of the solution to rising.

When an acid (such as HCl) is added to a buffer solution, the acid reacts with the weak base to form the conjugate acid of the base and water. The addition of the conjugate acid of the base causes the pH of the solution to decrease. Based on the above equation, pH change will be minimum in Buffer B. Therefore, the buffer whose pH will change the least is buffer B.

#SPJ11

to learn more about buffer : https://brainly.com/question/24262133

Answer:

The SI unit of volume is the cubic meter (m3), which is a derived unit.

Explanation:

When Ca+2 is combined with PO4-3, the correct formula is Ca3(PO4)2 to achieve electrical neutrality.

Calcium (Ca) is a metal with a charge of +2, indicated by the +2 superscript. Phosphate (PO4) is a polyatomic ion with a charge of -3, indicated by the -3 superscript. In order to form a neutral compound, the charges of the ions must balance each other.

To achieve electrical neutrality, three Ca+2 ions are needed to balance the charge of two PO4-3 ions. Each Ca+2 ion has a charge of +2, so three Ca+2 ions contribute a total charge of +6. Similarly, each PO4-3 ion has a charge of -3, so two PO4-3 ions contribute a total charge of -6. Therefore, the compound Ca3(PO4)2 ensures that the charges are balanced, resulting in a neutral compound.

In the formula, the subscripts indicate the number of atoms present in the compound. There are three calcium ions (Ca) and two phosphate ions (PO4) present in the compound. The formula Ca3(PO4)2 represents the combination of calcium and phosphate ions in the correct ratio to maintain electrical neutrality.

To know more about electrical neutrality, please click on:

https://brainly.com/question/1688387

#SPJ11