Substance
Formula
Mass,
(g)
Physical Color
State
Density Boiling
, (g/cm) Point,
Methane
сн.
16.0
Gas
Colorless
0.423
-161.5
Ammonia
NH,
17.0
Gas
Colorless
0.70
-33
Unknown
???
???
???
???
???
???
Propane
CH
44.1
Gas
Colorless
0.493
-12.1
Bromine
Br.
159.8
Liquid
Red
4.04
58.8
Lithium
Li
6.94
Solid
0.534
1342
Silvery,
white
metal
Magnesium Mg
24.3
Solid
1.74
1090
Silver,
white
metal

The calculation of the total calories in a meal is based on the amount of each component it contains as well as the nutritional content. In the given meal, sucrose, starch, fiber, triglycerides, cholesterol, protein, retinoic acid, ascorbate, and ethanol are present.

Given below is the calorie content of each of these components of the meal:

1 gram of sucrose yields 3.87 calories.

Therefore, 15 grams of sucrose will yield 15 x 3.87 = 58.05 calories.

1 gram of starch yields 3.87 calories.

Therefore, 8 grams of starch will yield 8 x 3.87 = 30.96 calories.

1 gram of fiber yields 2.24 calories.

Therefore, 9 grams of fiber will yield 9 x 2.24 = 20.16 calories.

1 gram of triglycerides yields 8.37 calories.

Therefore, 13 grams of triglycerides will yield 13 x 8.37 = 108.81 calories.

1 gram of cholesterol yields 9.02 calories.

Therefore, 1 gram of cholesterol will yield 1 x 9.02 = 9.02 calories.

1 gram of protein yields 3.87 calories.

Therefore, 20 grams of protein will yield 20 x 3.87 = 77.4 calories.

1 gram of retinoic acid yields 9.24 calories.

Therefore, 0.05 grams of retinoic acid will yield 0.05 x 9.24 = 0.462 calories.

1 gram of ascorbate yields 0.4 calories.

Therefore, 0.5 grams of ascorbate will yield 0.5 x 0.4 = 0.2 calories.

1 gram of ethanol yields 7.1 calories.

Therefore, 5 grams of ethanol will yield 5 x 7.1 = 35.5 calories.

Total calories = 58.05 + 30.96 + 20.16 + 108.81 + 9.02 + 77.4 + 0.462 + 0.2 + 35.5= 340.49

Therefore, the total calories in the meal are 340.49.

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Answer:

Explanation:

The number of atoms of Al can be found by using the formula

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

N = 1.5 × 6.02 × 10²³

We have the final answer as

Hope this helps you

Answer:

Helps to form hair, nails and your skin outer layer

Help to support your skin, heal wounds and keep your nails and hair healthy

Explanation:

if it's helpful let me know in the comments and messages .. please send me your phone number ..lets us be friends

Answer:

1. FeO

2.

3. Ba(NO3)2

4. Ca(OH)²

Explanation:

sorry I didn't knew of no 2 the others were on my book but not that one, and of no 4 the power 2 must be down

Answer:  but thx for the points

Explanation:

The portion of the hemoglobin molecule that ultimately gives urine and feces their colors is known as bilirubin.

The dissolution of hemoglobin's heme groups results in the production of the yellow pigment known as bilirubin. The liver absorbs it when it is released into the bloodstream, where it is then conjugated with glucuronic acid to create conjugated bilirubin. The ejected conjugated bilirubin is then transported to the intestines by bile.

Urobilinogen and stercobilinogen are produced in the intestines as a result of further chemical transformations of bilirubin caused by bacteria. While stercobilinogen is further oxidized to stercobilin, which gives feces their distinctive brown color, urobilinogen is reabsorbed into the bloodstream.

A portion of urobilinogen is expelled in urine by the kidneys, where it further oxidizes to create urobilin. The reason why urine appears yellow is due to urobilin.

Therefore, bilirubin ultimately contributes to the hues of color of urine and feces through the breakdown of and transformation into urobilinogen and stercobilinogen.

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The Cistercian order split from the Cluniac order to follow the rules of Saint Benedict more strictly.

The Cistercians, formally known as the Order of Cistercians (Latin: (Sacer) Ordo Cisterciensis, abbreviated as OCist or SOCist), are a Catholic religious order of monks and nuns who split off from the Benedictines and adhere to the Latin Rule, which incorporates Bernard of Clairvaux's contributions as well as the Rule of Saint Benedict. As a nod to the color of the "cuculla" or cowl (choir robe) worn by the Cistercians over their habits as opposed to the black cowl used by Benedictines, they are also known as Bernardines, after Saint Bernard himself, or as White Monks.

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A liquid has a specific volume but still no distinct shape, a solid has a definite shape and size, and a gas lacks both. The volume of a solid is measured in cubic units like cubic centimetres, metres, and feet.

The surface area of an object is the space and region that it takes up. On the reverse hand, volume describes how much space an object has. Geometry includes a wide variety of shapes and proportions, such as spheres, cubes, cuboid shapes, cones, and cylinders. Each form has a unique surface area and volume.

The amount of space a liquid takes up inside the container determines its volume. The values in the measuring containers therefore precisely reflect the liquid's volume. The litre (l) unit of measurement is used to express liquid volume. a 20-liter milk can, a 1-liter dairy packet, and so forth.

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a) The substance X is likely to be lead nitrate (Pb(NO₃)₂)

b) substance which the yellow solid consists of lead iodide (PbI₂).

c) The characteristic of chemical reactions that is illustrated by this example is the formation of a precipitate.

d) The balanced chemical equation for the reaction that takes place is:

Pb(NO₃)₂ (aq) + 2KI (aq) → PbI₂ (s) + 2KNO₃ (aq)

The material X is probably lead nitrate(Pb(NO₃)₂)  since it interacts with potassium iodide (KI) to produce lead iodide (PbI₂), a yellow solid. Lead iodide is the yellow solid that separates from the solution (PbI₂).

The production of a precipitate is a property of chemical processes that is demonstrated by this example. A precipitate is a solid that develops during a chemical reaction from a solution.  The reaction's balanced chemical equation is as follows:

Pb(NO₃)₂ (aq) + 2KI (aq) → PbI₂ (s) + 2KNO₃ (aq)

In this equation, the physical states of the reactants and products are indicated in parentheses. The aqueous solutions of lead nitrate and potassium iodide are indicated by (aq), and the solid lead iodide is indicated by (s). The aqueous solution of potassium nitrate is also indicated by (aq).

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Answer:

Due to the difference in the relative atomic masses and therefore, the molecular masses of Zn and Pb, one mole of Zn is about 3.2 times lighter than one mole of Pb

Explanation:

From the periodic table, we have;

The atomic number of zinc, Zn = 30

The atomic mass of zinc, Zn = 65.38 amu

The molar mass of zinc, Zn = 65.38 g/mol

The atomic number of lead, Pb = 82

The atomic mass of lead, Pb = 207.2 amu

The molar mass of lead, Pb = 207.2 g/mol

Therefore, whereby equal number of moles of Zn is lost and Pb is gained, we have;

Mass of 1 mole of Zn = 65.38 grams

Therefore, 1 gram of Zn = 1/65.38 moles = 0.0153 moles

0.12 grams of Zn = 0.12×0.0153 = 0.00184 moles of Zn

Given that equal number of moles of Zn and Pb are involved in the reaction, the number of moles of Pb gained = 0.00184 moles

The mass of Pb gained = Number of moles of Pb gained × Molar mass of Pb

The mass of Pb gained = 0.00184 × 207.2 = 0.38 g ≈ 0.4 g.

Amount of Pb gained = 0.43 g ≈ 0.4 g

Answer: D 25 degrees

Explanation: The reason because is 25x4=100 and slightly tilted =1/4 of the earth which is 25

Answer:

Explanation:

Divide each weight by their respective element weights.

Na\(_2\)S\(_2\)O\(_3\) is the empirical formula for the compound that has 46 grams of sodium, 64 grams of sulfur, and 48 grams of oxygen.

In chemistry, the equation of maybe a chemical compound is the simplest complete number percentage of atoms that make up a molecule. The empirical formulas for sulfur monoxide, SO, and disulfur dioxide, S2O2, are two simple instances of this concept.

They do not, nonetheless, share comparable molecular formulas, which indicate how many elements are contained in each chemical compound's molecules. An empirical formula does not specify the arrangement or number of atoms. Several polymers, including such silicon dioxide, nor ionic compounds, including such calcium chloride (CaCl2), have this property (SiO2).

moles of sodium = 46/23=2

moles of sulfur = 64 / 32=2

moles of oxygen =48 / 16 =3

Na\(_2\)S\(_2\)O\(_3\)  is the empirical formula

Therefore, Na\(_2\)S\(_2\)O\(_3\) is the empirical formula.

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Answer:selenium

Explanation:

Answer: Nether

Explanation: Because if you have one pound of Calcium and one pound of selenium there both the same weight  

Answer:

28 years

Explanation:

the information is literally in the question.

Answer:

A silicon atom has 14 electrons around the nucleus, and of these, there are 4 valence electrons on the outermost orbital. When this is made into a single crystal, it can be used as a material for semiconductor products. When it crystalizes, the nuclei share electrons and they bond with 8 electrons around each nucleus.

Hydropower can affect fish and other marine life which is the true statement and is denoted as option C.

This is the process in which water energy is converted into electrical energy through the use of dams and turbines.

When the dams are created, it blocks the path of marine activities and limits them to certain activities such as reproduction.

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Answer:

5.2 x 10^8

Explanation:

Answer:

5.2x10^8

Explanation:

hope this helped

Answer:

a single compound as a reactant

Explanation:

A characteristics of a decomposition reaction is a single compound as a reactant.

A decomposition reaction is a chemical breakdown, that involves splitting a single chemical entity into two or more fragments.

A ------> B + C

where;

Thus, a characteristics of a decomposition reaction is a single compound as a reactant.

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Answer:

About 203.381 grams

Explanation:

We need to first determine the molar mass of Ba3(PO4)2.

We have:

3 Bariums - 137.327*3 = 411.981

2 Potassiums - 39.098*2 = 78.198

8 Oxygens - 16*8 = 128

Add these together and we get 618.179 g/mol

If we only want 0.329 moles, then we multiply those two numbers together to get about 203.381 grams.

Answer:

3 2 4 5 1

Explanation:

The position of an element on the periodic table depends on its chemical properties.

The periodic table is an arrangement of elements in groups an periods. The elements in the same group are chemically similar while the elements that are in the same period only have the same number of shells.

The question is  incomplete as the required charts are not shown. However, the position of an element on the periodic table depends on its chemical properties.

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Answer:

129.02 g/mol.

Explanation:

We apply grahams law of diffusion:

1/8 = √2.016/√m     where m = molar mass

√m  = 8√2.016

m =   (8√2.016) = 129.02 g/mol.

At the given temperature, the equilibrium constant K for the reaction is 0.5625 mol/L.

The balanced chemical equation for the reaction is:

2NH₃(g) ⇌ 3H₂(g) + N₂(g)

The equilibrium expression for the reaction is:

K = [H₂]³[N₂] / [NH₃]²

Given that 5.0 moles of NH₃ were introduced into a 5.0 L reaction chamber, the initial concentration of NH₃ is:

[NH₃]₀ = 5.0 mol / 5.0 L = 1.0 mol/L

At equilibrium, 80.0% of the NH₃ had reacted, which means that 20.0% of NH₃ remains. Therefore, the equilibrium concentration of NH₃ is:

[NH₃] = 0.20 x 1.0 mol/L = 0.2 mol/L

The equilibrium concentrations of H₂ and N₂ can be calculated from the balanced equation:

[H₂] = (3/2) x [NH₃] = 0.3 mol/L

[N₂] = [NH₃] / 2 = 0.1 mol/L

Substituting these values into the equilibrium expression gives:

K = [H₂]³[N₂] / [NH₃]²

K = (0.3 mol/L)³ x (0.1 mol/L) / (0.2 mol/L)²

K = 0.5625 mol/L

Therefore, the equilibrium constant K for the reaction at the given temperature is 0.5625 mol/L.

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Answer:

Top left: RR Top right: Rr Bottom left: Rr Bottom right: rr

Explanation:

if both parents are heterozygous then the table will always look like this. the chances of the offspring being heterozygous are 50%. the offspring has a 25% chance of having two recessive traits and a 25% chance of having two dominant traits.

C6H14 has a molecular weight of 86.18 g/mol (612.01 + 141.01) g/mol.

Weight is a measurement of the force of gravity acting on an object. It is inversely related to the mass and gravitational acceleration of an object. Despite the fact that the terms weight and mass are frequently used interchangeably in ordinary conversation, it is crucial to understand the difference between the two. Weight is a measurement of the force of gravity acting on an object, whereas mass was an indication of the quantity of matter that makes up that object.

A physical quantity called force defines the interaction of two systems or objects. It has both size (size) and direction because it is a form of vector quantity.

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Answer:

Explanation:chlorine

Answer:

16

Explanation:

Protons have a positive net charge,

Neutrons being neutral don't have a net charge.

Each proton is one extra net charge if you have 16 of them and the neutrons don't affect your net charge you will have 16.

The scientist I have chosen is J.J. Thomson, who made significant contributions to the study of atomic structure in the late 19th and early 20th centuries.

Thomson's most well-known contribution is his discovery of the electron, which he identified as a negatively charged particle present in all atoms. This discovery formed the basis of Thomson's "plum pudding" model of the atom, which proposed that atoms consisted of a positively charged "pudding" with negatively charged electrons scattered throughout.

While this model was eventually disproven, Thomson's discovery of the electron and his work on the measurement of atomic and molecular masses laid the foundation for the modern atomic model. Specifically, Thomson's work on mass spectrometry led to the development of more advanced techniques for determining the masses and properties of atoms and molecules, which are still used in modern research today.

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