fructose draw structures for the carbonyl electrophile and enolate nucleophile that react to give the aldol or enone below.

Q = 203,250 kJ heat is required to vaporize.

The amount of heat required to vaporize a substance is known as its heat of vaporization. To calculate the heat of vaporization in kJ, you will need to know the substance's specific heat of vaporization (ΔHvap), which is the amount of heat required to vaporize one mole of the substance at its boiling point. You can also use the following equation: Q = mLΔHvap , Where Q is the heat energy in kJ, m is the mass of the substance in grams and L is the substance's heat of vaporization .Missing text find on internet: a 90,0 mL sample of water is heated to its boiling point. V(H₂O) = 90,0 mL. d(H₂O) = 1,00 g/mL. m(H₂O) = 90 mL · 1,00 g/mL. m(H₂O) = 90 g. n(H₂O) = m(H₂O) ÷ M(H₂O). n(H₂O) = 90 g ÷ 18 g/mol. n(H₂O) = 5 mol. Q = n(H₂O) · ΔHvap Q = 5 mol · 40.65 kJ/mol. Q = 203,250 kJ. Q - heat reqiured.

Learn more about mole here :

https://brainly.com/question/29367909

#SPJ4

Answer: Predominant tropical easterly winds sweep across the central and southern portions of the state, keeping the temperatures mild

Explanation:

bc

Answer:

Any Questions?

So i can give you the answer

Answer:

false

Explanation:

Answer:

Gold is an element.

Explanation:

Gold is an extremely rare element on Earth. Because it doesn't react with very many other elements, it is often found in its native form in the Earth's crust or mixed with other metals like silver.

Answer:

Mass = 96.07 g

Explanation:

Given data:

Mass of citric acid = ?

Molar mass of citric acid = 192.14 g/mol

Volume of citric acid solution = 0.10 L

Molarity of solution = 5.00 M

Solution:

First of all we will calculate the number of moles from molarity formula. Then we will determine the mass from moles formula.

Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.

Formula:

Molarity = number of moles of solute / L of solution

5.00 M = n/0.10 L

n = 5.00 mol/L× 0.10 L

n =0.5 mol

Mass of citric acid:

Number of moles = mass/molar mass

0.5 mol = mass/ 192.14 g/mol

Mass = 0.5 mol  × 192.14 g/mol

Mass = 96.07 g

Answer:

the throwing back by a body or surface of light, heat, or sound without absorbing it.

Explanation:

Explanation:

It is the quantity that describes the amount of matter in any sample of matter

Answer:

80.7 °C

Explanation:

Step 1: Given and required data

Step 2: Calculate the final temperature of the water

We will use the following expression.

Q = c × m × (T₂ - T₁)

T₂ = Q / c × m + T₁

T₂ = -1,200 J / (4.184 J/g.°C) × 20.0 g + 95.0 °C = 80.7 °C

Answer:

81 C

Explanation:

While an element on the periodic table does not automatically qualify as a mineral, there are cases where a mineral can contain an element. In this context, it is important to consider the distinction between elements and minerals in geology. Elements are pure substances composed of atoms of the same type, while minerals are naturally occurring inorganic substances with a specific chemical composition and crystal structure.

In geology, minerals are defined as naturally occurring inorganic substances with a specific chemical composition and crystal structure. While elements themselves are not considered minerals, there are instances where minerals contain a single dominant element.

One such example is the mineral gold (Au), which consists entirely of the element gold. Gold meets the criteria of a mineral as it is naturally occurring, has a specific chemical composition (Au), and possesses a crystalline structure. Therefore, gold can be classified as both an element and a mineral.

It is essential to note that not all elements can be classified as minerals. For example, gases like oxygen (O2) or elements that exist in an amorphous state, such as liquid mercury (Hg), do not exhibit the necessary crystalline structure to be considered minerals.

To learn more about periodic table click here: brainly.com/question/15987580

#SPJ11

If one form of a gene can mask the appearance of another form, that form is considered dominant over the other form. Option B.

According to Mendel, genes are usually made up of 2 alleles. These alleles can be the same or different. When the alleles are the same, the gene is said to be homozygous. If the alleles are different, the gene is said to be heterozygous.

When the two alleles that make up a gene are different, one will be dominant and the other will be recessive. The dominant gene masks the effect of the recessive gene. In other words, the recessive gene cannot be expressed as long as it coexists with the dominant gene. In order for it to be expressed, it has to be in two copies or a homozygous recessive form.

For the dominant allele, however, only one copy is needed for it to be expressed.

In summary, if one form of a gene can mask the appearance of another form, that form is considered dominant over the other form.

More on genes can be found here: https://brainly.com/question/5519888

#SPJ1

The volume that is occupied by the gas is obtained as  56 L.

We know that from the Avogadro's law, the volume that can be occupied by one mole of a gas is obtained as 22.4 L. This implies that we have to find the number of moles in the 70 g of the CO and then obtain the corresponding volume by simple proportion.

Number of moles of CO = 70.0 g/28 g/mol

= 2.5 moles

If 1 mole of the gas occupies 22.4 L

2.5 moles of the gas occupies 2.5 * 22.4/1 mole

= 56 L

Learn more about volume of a gas:https://brainly.com/question/12357202

#SPJ1

Using Avogadro's law, we know the amount of moles in the sample is

\(\frac{6.87 \times 10^{23}}{6.022 \times 10^{23}}=1.1408170043175 \text{ mol}\)

Therefore, the atomic mass is:

\(\frac{26.1}{1.1408170043175}=\boxed{22.9 \text{ g/mol (to 3 sf)}}\)

The density of the liquid is 0.794 g/mL.

To calculate the density of the liquid, we can use the formula:

Density = Mass / Volume

Given information:

Mass of the graduated cylinder = 105.56 g

Volume of the liquid = 45.4 mL

Total mass of cylinder and liquid = 136.15 g

To find the mass of the liquid, we subtract the mass of the cylinder from the total mass:

Mass of the liquid = Total mass - Mass of the cylinder

Mass of the liquid = 136.15 g - 105.56 g

Mass of the liquid = 30.59 g

Now we can calculate the density:

Density = Mass of the liquid / Volume of the liquid

Density = 30.59 g / 45.4 mL

Converting mL to cm³ (since 1 mL = 1 cm³):

Density = 30.59 g / 45.4 cm³

Density = 0.674 g/cm³

Rounding to three decimal places, the density of the liquid is approximately 0.794 g/mL.

Learn more about density: https://brainly.com/question/1354972

#SPJ11

Answer:

The protons determine the name of an element and also atomic number because its the same as protons.

Answer:

Carbon can be found in the ocean, rocks, and the atmosphere around us.

Answer:

Pros: No vehicle emissions other than water vapor. Fuel economy equivalent to about twice that of gasoline vehicles. Hydrogen is abundant, and can be made from renewable energy. Cons: This space-age technology is expensive.

Answer:

The pros of hydrogen fuel cells are that they are very efficient, producing very little waste. They are also very stable, which makes them safe to use.

The cons of hydrogen fuel cells are that they can be expensive to produce and maintain, and they require a lot of energy to power them, meaning that they often aren't as efficient as they could be.

Despite these pros and cons, hydrogen fuel cells are still a very promising technology. With more research, attention, and development, they could be a powerful force in the fight against carbon emissions and global warming.

The equation that represents a single replacement reaction given the various options is 2Al(s) + 6HCl -> 2AlCl₃(aq) + 3H₂O(g) (option 2)

A single replacement reaction, also known as single displacement reaction is a reaction in which elements higher in the electro-chemical series displace or replace elements lower in the electro-chemical series displace from a solution.

The following example illustrates single replacement reaction:

A + BC -> AC + B

From the above reaction, we can see that A has replace/displace B to from AC.

With the above information, we can determine the equation that represents single replacement reaction. Details below:

Equation from the questions:

From the above, we can see that only 2Al(s) + 6HCl -> 2AlCl₃(aq) + 3H₂O(g) conform to single replacement reaction.

Thus, the correct answer to the question is: 2Al(s) + 6HCl -> 2AlCl₃(aq) + 3H₂O(g) (option 2)

Learn more about single replacement reaction:

https://brainly.com/question/29662825

#SPJ1

Answer:

Law of Multiple proportion states that when two elements combine to form more than one compound, the mass of one element, which combines with a fixed mass of the other element, will always be ratios of whole numbers. For example, let us assume 2 molecules CO (carbon monoxide) and CO2(carbon dioxide).

Explanation:

Answers:

1)The correct answer is 3g.

2)The correct answer is approximately 1.3.

3)The correct answer is 10.

1)

Explanation:

Manganese-56 has a half-life of 2.6 hours, which means that after 2.6 hours, half of the original amount of manganese-56 will have decayed. We can use this information to determine how much manganese will remain after 7.8 hours, starting with 20g of manganese.

Number of half-lives that have passed:

7.8 hours ÷ 2.6 hours/half-life = 3 half-lives

Amount of manganese remaining:

After 1 half-life: 20g / 2 = 10g

After 2 half-lives: 10g / 2 = 5g

After 3 half-lives: 5g / 2 = 2.5g

Therefore, 20g - 2.5g = 17.5g of manganese will have disappeared after 7.8 hours.

2)

Explanation:

The neutron to proton ratio for a stable nucleus is not constant, but there is a general trend known as the band of stability. According to the band of stability, stable nuclei have a neutron to proton ratio that increases with increasing atomic mass number.

Vanadium has an atomic number of 23, which means it has 23 protons in its nucleus. To determine the approximate neutron to proton ratio for vanadium, we can look at the neighboring stable nuclei on the band of stability. The stable isotopes closest to vanadium are chromium-50 and manganese-55, which have neutron to proton ratios of approximately 1.4 and 1.3, respectively.

Since vanadium is closer in atomic mass to manganese-55, we can approximate its neutron to proton ratio to be similar to that of manganese-55, which is approximately 1.3.

3)

Explanation:

Radon-222 has a half-life of 3.8 days, which means that after 3.8 days, half of the original amount of radon-222 will have decayed. We can use this information to determine how many half-lives will pass after 38 days.

Number of half-lives that have passed:

38 days ÷ 3.8 days/half-life = 10 half-lives

After 10 half-lives, the amount of radon-222 remaining will be:

(1/2)^10 = 1/1024 of the original amount.

This means that 1023/1024 of the original amount of radon-222 will have decayed after 38 days, which is approximately 99.9023%.

The formation of lead(ii) chloride in the first part of experiment 1, the balanced chemical equation is. Pb (NO3)2 (aq) + 2 NaCl (aq) → PbCl2 (s) + 2 NaNO3 (aq).

The reaction, the physical states are. aq = aqueous (dissolved in water) s = solid for the formation of mercury(i) chloride in the fourth part of experiment 1, the balanced chemical equation is Hg2(NO3)2 (aq) + 2 NaCl (aq) → 2 Hecla (s) + 2 NaNO3 (aq) In this reaction, the physical states are aq = aqueous (dissolved in water) s = solid for the formation of silver chloride in the fourth part of experiment 1, the balanced chemical equation is AgNO3 (aq) + NaCl (aq) → AgCl (s) + NaNO3 (aq) In this reaction, the physical states are aq = aqueous (dissolved in water)  s = solid Note Mercury(I) chloride is also known as calomel, and it is a toxic chemical. Please handle it with care and dispose of it properly.

learn more about chloride here.

https://brainly.com/question/15296925

#SPJ11

Answer: The frequency is 7.047 Hz. It comes under ultraviolet radiation

Explanation:

We know that v = λ x f ................. (1)

where v ⇒ velocity of the wave

f ⇒ frequency of the wave

λ ⇒ wavelength of the wave

Since we know that the given wave is electromagnetic radiation,

v = 3 x 10⁸ m/s

λ = 4.257 x 10^-9 m (Given)

Substituting in (1), we get

f = v / λ

f = 3 x 10^8 / 4.257 x 10^-9

f = 7.047 x 10^16 Hz

Since the frequency is in the order of 16, the given radiation is ultraviolet radiation

To learn more about Electromagnetic radiation :

https://brainly.com/question/10429732

Answer:

battery. you use it for your remotes. vinegar. you use vinegar for cooking of cleaning. nail polish remover. you use this for removing nail polish

The two ways in which the physical state of matter can be changed are melting and freezing.

For such more questions on physical state

https://brainly.com/question/30214939

#SPJ8

Answer:

The Milky Way

Explanation:

Answer:

The Milky Way

Explanation:

The number of moles of Li present in 25.6 g of Li is 3.688.

Given

Mass % of isopropanol in a solution of isopropanol in water = ?

Mass of isopropanol = ?

Molarity of isopropanol = 2.53M

Density of the solution = 0.899 g/mLMM of isopropanol = 60.10 g/mol

Formula used Mass % = (Mass of solute / Mass of solution) × 100

Let's calculate the mass of isopropanol in 1 L of solution

Mass of 1 L solution = Volume × Density= 1000 × 0.899= 899 g

Number of moles of isopropanol in 1 L solution= Mass / Molecular Mass= 899 / 60.10= 14.95 moles

So, number of moles of isopropanol in 100 mL of solution= 14.95 × (100 / 1000)= 1.495 mole

Mass of isopropanol in 100 mL of solution= Number of moles × Molecular mass= 1.495 × 60.10= 89.95 g

Mass % of isopropanol in the solution= (89.95 / 100) × 100= 89.95%

Mass % of isopropanol in the given solution is 89.95%

Consider the reaction of lithium metal and nitrogen gas.

GivenMass of Li = 25.6 gMM of Li = 6.94 g/mol

Formula usedMoles of a substance = Mass / Molecular mass

Number of moles of Li= Mass / Molecular mass= 25.6 / 6.94= 3.688 moles

The number of moles of Li present in 25.6 g of Li is 3.688.

Learn more about isopropanol

brainly.com/question/22284953

#SPJ11

In the carbon reaction (light-independent reaction), carbon dioxide molecules are reduced by the addition of electrons carried from the light reaction by NADPH (Nicotinamide Adenine Dinucleotide Phosphate).

NADPH is a coenzyme that carries high-energy electrons and hydrogen ions, which are produced during the light-dependent reactions of photosynthesis, to the stroma of chloroplasts where carbon dioxide fixation occurs.

In the stroma, the electrons and hydrogen ions from NADPH are used to reduce carbon dioxide to form carbohydrates, such as glucose, through a series of enzyme-catalyzed reactions known as the Calvin Cycle.

The Calvin Cycle is the process by which plants and other photosynthetic organisms convert carbon dioxide and other inorganic molecules into organic compounds that can be used for energy and growth.

Learn more about the carbon reaction at

https://brainly.com/question/29317273

#SPJ4