A solvent used to separate chloroplast pigments has 2 polar groups. A pigment that ran exactly with the solvent front would.

Answer:

Step-by-step explaination:

AC is a straight line, D is a ray on it.

Hence, 135° and <b are a linear pair.

Therefore,

<b + 135° = 180°

<b = 180° - 135°

<b = 45°

And,

AC and BD are intersecting lines.

Hence, <b and <c are vertically opposite angles.

Therefore,

<b = <c

45° = <c

Also,

AC is a straight line.

Hence the angles; <a, <c and 45° add up to 180°.

Therefore,

<a + <c + 45° = 180°

<a + 45° + 45° = 180°

<a + 90° = 180°

<a = 180° - 90°

<a = 90°

CAD and TAG are interesting lines,

Hence, <CAT and <GAD are vertically opposite angles.

<CAT = <GAD

5x = 7x - 20°

5x - 7x = -20°

-2x = -20°

x = -20°/-2

x = 10°

The products created during nuclear fusion are energy and helium gas.

Nuclear fusion is a reaction through which two or more light nuclei collide to form a heavier nucleus. The nuclear fusion process occurs in elements that have a low atomic number, such as hydrogen.

The net result is the fusion of four protons into one alpha particle, with the release of two positrons and two neutrinos (which changes two of the protons into neutrons), and energy.

Hence, the products created during nuclear fusion are energy and helium gas.

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For every one mole of glucose, there are six moles of carbon dioxide.

We have the balanced equation (without state symbols):

6H₂O + 6CO₂ → C₆H₁₂O₆ + 6O₂

Thus, 6 moles of carbon dioxide are required to fully produce 1 mole of glucose.

Here, we got 2.75g of carbon dioxide, and we need to convert it into moles.

Carbon dioxide has a molar mass of 44 g/mol.

So here, there exist

2.75g ÷ 44g/mol = 0.0625mol

Since there are two moles of CO₂, we can produce 2/6⋅1 = 1/3 moles of glucose (C₆H₁₂O₆).

We need to find the mass of glucose formed, so we multiply the number of moles of glucose by the molar mass.

Glucose has a molar mass of 180.156g/mol.

So here, the mass of glucose produced is:

1/3mol × 180.156 g/ mol ≈ 60g to the nearest whole number.

So, approximately 60 grams of glucose will be produced.

Complete Question:

6H2O + 6CO2 --> C6H12O6 + 6O2 How many grams of Glucose are made if you start with 2.75g of CO2?

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D-, L-, and D-allo-threonine isomers of threonine have no nutritional or other advantages. More often than natural proteins, Thr is utilised to synthesise Thr.

Chiral centres are those to which four distinct atom groups are bound. Carbon a cannot be a chiral carbon since it has three hydrogen atoms connected to it. Since it is doubly linked to oxygen, it is not the carboxyl carbon either. Furthermore, because it is bound to three rather than four separate groups of atoms, the amino nitrogen is ineligible in any case.

Due to the two chiral centres in threonine, there are four potential stereoisomers. Other than being rare in nature, the isomers of threonine (D-, L-, and D-allo-threonine) have no nutritional or other benefit. Nowadays, synthetic Thr is used more frequently than natural proteins to make Thr.

The chiral centres of amino acids can be one or many. Except for glycine, the a-carbon is chiral in all amino acids. There are extra chiral centres in some amino acids. Because there are four distinct groups connected to the carbon atom, these are chiral centres.

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Answer: A

Explanation: I hope this helps!

Answer:

A or C. Best to go with A

Explanation:

Hope it works!!

Answer:

B and C

Explanation:

Most animals that live underwater have have gills and tails and vise versa hope this helps!

koukladina stop deleting my answers I'm trying to help people I'm not doing anything wrong stop it

Answer:

Explanation:

density = mass / volume

mass = 17.95 grams

volume = 17.97 - 15.50 mL = 2.45 mL = 2.45 cc

density = 17.95 /(2.45) = 7.327 grams / cc

Non-heme iron is found in some foods that provide all the amino acids humans require for the absorption of iron.

Amino acids are defined as the substances which are considered to be the monomers of proteins.Every amino acid has the same structure  which consists  of a central carbon  bonded to an amino group , carboxyl group and a hydrogen.

Each amino acid also has  an another atom or a group of atoms bonded to the alpha carbon which are also known as the R group or the variable group of the side chain.There are 20 common amino acids which are  present in natural proteins and each amino acid has the same backbone.

The sequence and number of amino acids determines protein's shape,size and also its function. Each amino acid is attached to the other by a covalent bond formed by a dehydration reaction.

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Answer: It is AN combustion

reaction.

Explanation:

Answer: Polar bond

Explanation:

The given structure is of formaldehyde an organic compound and it is acidic in nature.

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Answer:

viscosity

Explanation:

As the temperature of a liquid increases, the molecules move faster thereby increasing the liquid's kinetic energy. Furthermore, the higher the temperature of the liquid, the lower the viscosity since an increase in kinetic energy reduces the forces of intermolecular attraction.

Answer:

151.33 g/mol

Explanation:

TRUST ME -_-

When vinegar was added to baking soda, A new product is formed as foam. Hence, it is s a chemical change.

A chemical change results from a chemical reaction forming new products while a physical change is when matter changes forms but not chemical identity.

Foam up with carbon dioxide gas,all of baking soda can be made react and disappear into vinegar solution and thus chemical reaction completes.

Hence, When vinegar was added to baking soda, A new product was formed Hence, it is s a chemical change.

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Answer:

it would be 25% sorry if I'm wrong

Alkenes can be converted to alcohols by hydroboration–oxidation, which is true as in hydroboration, the alkene reacts with borane (BH3) or its complex with tetrahydrofuran (THF), forming a boron-containing intermediate. So answer is option A.

In hydroboration, the alkene reacts with borane (BH₃) or its complex with tetrahydrofuran (THF), forming a boron-containing intermediate. This reaction follows Markovnikov's rule, where the boron atom adds to the carbon atom with the greater number of hydrogen atoms. After hydroboration, the boron intermediate is oxidized with hydrogen peroxide (H₂O₂) and a basic solution (such as sodium hydroxide, NaOH) in the presence of water. This oxidation step replaces the boron atom with a hydroxyl group (OH-), resulting in the formation of an alcohol.

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complete question is below

alkenes can be converted to alcohols by hydroboration–oxidation

A. YES

B. NO

One atom must be much more electronegative than the other.

Electronegativity

Electronegativity is the propensity of an atom in a molecule to draw the shared pair of electrons toward itself.

Because it is merely a propensity, this attribute has no dimensions. It essentially represents the final consequence of atoms' propensities to attract electron pairs that form bonds in various elements. On several scales, we quantify electronegativity. Linus Pauling created the most widely used scale.

Factors Affecting Electronegativity

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Answer:

3.00 mol NH₄Cl

Explanation:

Step 1: Write the thermochemical equation for the production of ammonuim chloride

NH₃(g) + HCl(g) → NH₄Cl(s)    ΔH = –176 kJ

Step 2: Calculate the number of moles of NH₄Cl produced if the change in enthalpy is –528 kJ

According to the balanced thermochemical equation, 176 kJ are released when 1 mole of NH₄Cl is produced. The moles of NH₄Cl produced if the change in enthalpy is –528 kJ is:

-528 kJ × 1 mol NH₄Cl/(–176 kJ) = 3.00 mol NH₄Cl

Answer:

cell wall > skeletal system (maybe)

cell membrane > skin (maybe)

nucleus > brain

mitochondria > digestive system

Explanation:

To calculate Karen's total costs for producing a specific number of posters, we need to consider both the fixed costs and the variable costs. Fixed costs: These are costs that do not change regardless of the number of posters produced. In this case, Karen's fixed costs are $250.

Variable costs: These are costs that vary depending on the number of posters produced. Karen's variable costs are as follows:
- For the first thousand posters, the variable cost is $2,000.
- For the second thousand posters, the variable cost is $1,600.
- For each additional thousand posters, the variable cost is $1,000.

To find Karen's total costs for producing a specific number of posters, we need to add the fixed costs to the relevant variable costs. For example, if Karen wants to produce 2,500 posters, her total costs would be:
Fixed costs ($250) + Variable costs for the first thousand posters ($2,000) + Variable costs for the second thousand posters ($1,600) + Variable costs for the additional 500 posters ($1,000) = $4,850.

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1) Write the formula

2) The subscripts show us the number of each atom in the formula. In this case, we also have to make sure to count the parenthesis subscript.

There are

3 Cu

2 P

8 O

Answer:

A pure metal is any metal that has not been joined with any other metal

Explanation:

Answer:

Be cause of The fat

Explanation:

It’s just fat

Answer:

False

Explanation:

Solubility refers to the ability of a substance to dissolve in a solvent, usually a liquid. It is a measure of the amount of a substance that can dissolve in a given amount of solvent at a given temperature. Solubility is not related to the ability of a substance to burn.

The mole ratio of hydrogen to oxygen gases liberated during the electrolysis of water is 2:1.

During the electrolysis of water, the decomposition reaction occurs, resulting in the liberation of hydrogen and oxygen gases.

The mole ratio of hydrogen to oxygen gases liberated during this process is 2:1.

Here's how you can determine the mole ratio:

1. First, write the balanced chemical equation for the electrolysis of water:
2H2O(l) -> 2H2(g) + O2(g)

2. The coefficients in the balanced equation represent the mole ratio.

In this case, 2 moles of water produce 2 moles of hydrogen gas and 1 mole of oxygen gas.

Therefore, the mole ratio of hydrogen to oxygen gases liberated during the electrolysis of water is 2:1.

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If the sample of magnesium used in a lab was contaminated with another metal that doesn't react with hydrochloric acid, then the results obtained in the experiment would be affected.

This is because the data collected during the experiment would reflect the reaction between hydrochloric acid and the contaminated sample instead of pure magnesium. As a result, the following changes in results might have been observed:

1. The mass of the contaminated sample would be higher than the mass of pure magnesium.

2. The rate of reaction between the contaminated sample and hydrochloric acid would be slower than the reaction between pure magnesium and hydrochloric acid.

3. The volume of hydrogen gas collected from the reaction would be lower than the volume of hydrogen gas collected in the reaction between pure magnesium and hydrochloric acid.

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If a volcano that has a lot of water vapor and gases built up and it erupts, The way that the eruption will be like is that Volcanic eruptions may be more violent when water vapor is present. This is because the primary initiator of explosive eruptions is steam pressure.

Volcanic eruptions may be more violent when water vapor is present. This is because the primary initiator of explosive eruptions is steam pressure.

Hydrogen sulfide is a sign of relatively low volcanic activity. When sulfur gases are released from magma and rise through the ground, they may come into contact with groundwater and react with it to produce hydrogen sulfide (H2S). High viscosity and high gas content facilitate explosive eruptions (andesitic to rhyolitic magmas).

Therefore, The magma will be broken up into liquid clots by explosive bubble bursts, and these clots will cool as they fall through the atmosphere.

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INFORMATION:

We know that:

- An automobile airbag inflates when NaN3 is converted to Na and N2 gas according to the equation,

2NaN3 → 2 Na + 3 N2.

And we must find the volume in (L) of N2 if 143 g of NaN3 completely reacted at STP

STEP BY STEP EXPLANATION:

To find it, we need to work with the conditions as an ideal gas.

The ideal gas equation is

1. We must find n:

To find n, we must first divide the 143 g of NaN3 by the molar mass

So, we have 2.2 mol of NaN3

Now to find n, we must multiply the number of mol of NaN3 by the relation between NaN3 and N2

Then, n = 3.3 mol

2. using STP conditions:

- T = 273K

- P = 760 torr

And using R = 62.36 (L*torr)/(K*mol)

Finally, replacing in the ideal gas equation solver for V

So, 73.92 L of N2 would be produced if 143 g of NaN3 completely reacted at STP.

ANSWER:

73.92 L

Answer:

Moving from left to right across a period, the atomic radius decreases. The nucleus of the atom gains protons moving from left to right, increasing the positive charge of the nucleus and increasing the attractive force of the nucleus upon the electrons.

Answer:the atomic radius will decrease.The nucleus of the atom will gain protons moving from left to right

Explanation: