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Answer: Fe3(PO4)2

Explanation:

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N₂ (g) + 3 H₂ (g) ---> 2 NH₃ (g)

mol NH₃ = H₂ (limited reactant) :

[tex]\tt \dfrac{2}{3}\times 9=6~moles[/tex]

grams: mol x Mr NH₃ (17 g/mol):

[tex]\tt = 6\times 17=102~g[/tex]

Answer:

They usually require a lot of energy to form products

Explanation:

Petroleum products, Carbon and hydrocarbons are also necessary

The sun has more thermal energy than the bath tub full of hot water, because the sun has more heat than the bathe tub full of hot water.

The energy present in a system that determines its temperature is referred to as thermal energy. Thermal energy flows as heat. Thermodynamics is a whole field of physics that studies how heat is transmitted across various systems and how work is performed in the process.

The object with the higher temperature has more thermal energy with two things have the same mass. A thermometer is used to determine temperature. Heat is the thermal energy that is transferred between things when their temperatures differ.

Undoubtedly, a colder item can possess more thermal energy than a warmer one. Here's one illustration, Thermal energy will be far more in a bathtub full of 100°F water than in a thimble full of 110°F water.

Thus, The sun has more thermal energy than the bath tub full of hot water.

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Answer:

There are four types of consumers: omnivores, carnivores, herbivores and decomposers. Herbivores are living things that only eat plants to get the food and energy they need. Animals like whales, elephants, cows, pigs, rabbits, and horses are herbivores. Carnivores are living things that only eat meat.

Explanation:

Answer:

a is unbalanced and bcd is balanced

Answer:T=200k

Explanation: the answer is 200k

The pKa and the fraction of the carboxyl group is mathematically given as

a)  pH= 3.2

b) 1/2 Carboxyl group will give  COO_

Question Parameters:

25 mL of 0.1 M lactic acid (CH, CH(OH)COOH) is titrated with 0.1 M sodium hydroxide (NaOH).

Generally the equation for the pH   is mathematically given as

ph = pka + log [tex]\frac{[sodium lactate]}{[lactic acid]}[/tex]

Therefore

NaOH moles = 1/2 moles of acid then [sodium lactate]

Means

NaOH moles =[lactic acid]

Therefore

pH=pKa

Hence

Volume of NaOH = 12.5 ml

Therefore

pH = pka

pH= 3.2

b)

Generally at pKa =3.2, The 1/2 Carboxyl group will give  COO_

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Photosynthesis is a process of food and energy production by autotrophs. Water and carbon dioxide in the presence of sunlight gives oxygen and sugar.

Photosynthesis is a biochemical reaction that uses organic and inorganic compounds and converts the molecules with the help of biological organs and substances.

The reactant of the process includes atmospheric water vapours, carbon dioxide and the heat and energy from the sun. These reactants are used by plants and some other organisms.

The organism utilizes the reactants and produces molecules of sugar like glucose and by-product oxygen. These molecules are necessary for the metabolic and respiratory processes.

Therefore, option B. [tex]\rm sunlight + water + carbon\; dioxide \rightarrow oxygen + sugar[/tex] is the correct equation that describes photosynthesis.

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For the cell notation shown, [tex]Ag(s)[/tex] is the species that is undergoing reduction.

Reduction can be defined as a chemical reaction or phenomenon through which the number of electrons or oxidation states associated with the atoms of a chemical element are changed.

This ultimately implies that, reduction is a half-reaction that typically involves decreasing the oxidation number of a chemical species, especially by gaining electrons.

In this scenario, [tex]Ag(s)[/tex] is the species that is undergoing reduction because it is not oxidized and it gains one (1) electron.

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Ag(s)

As here Ag gains one more electron from Ag^+1 so it undergoes reduction

[tex]\\ \rm\longmapsto Sn+2Cl_2\longrightarrow SnCl_4[/tex]

Moles of Tin:-

Here

Mass of Tin chloride

[tex]\\ \rm\longmapsto 0.8(189)=151.2g[/tex]

Answer:

The answer is B                          

Answer: B

Explanation:

Dominant

Explanation:

Meaning that particular gene is stronger than the others.

[tex]\\ \rm\longmapsto Fe_2O_3+3Mg\longrightarrow 3MgO+2Fe[/tex]

0.25mol will produce

Mass of Fe

Answer/Explanation:

[1] The difference in electron movement between ionic and covalent bonding is ionic bond essentially donates an electron to the other atom participating in the bond, while electrons in a covalent bond are shared equally between the atoms.

[2] One way you can predict if a bond would be ionic or covalent based on the location of the elements on the periodic table is  to look how far apart the two atoms forming the bonds are in the periodic table. If one atom is on the far left (Group 1 or 2) and the other is on the far right (Group 5, 6, or 7), then the atoms will have large differences in EN and will form an ionic bond.

[3] You can predict if a bond would be ionic or covalent based on electronegativity is If the electronegativity difference is less than 0.5, then the bond is nonpolar covalent. If the ΔEN is between 1.6 and 2.0 and if a metal is involved, then the bond is considered ionic. If only nonmetals are involved, the bond is considered polar covalent.

[4] In Order for bonds to break in reactants Molecules must collide in order to react. In order to effectively initiate a reaction, collisions must be sufficiently energetic (kinetic energy) to break chemical bonds.

[5]  The height of an object affect the amount of gravitational potential energy it has by gravitational potential energy (P.E) depends on the mass of the body and the height at which it travels, the two quantities will therefore dictate the work done on the object which is eventually the same as  magnitude of the gravitational potential energy P.E. It is assumed that gravitational pull acts toward the earth surface. The more the object move upward the more the work is done on the object to pull it down. We can have different masses of object at different heights, but gravitational field strength will always remain constant on earth.Since the gravitational potential energy P.E depend on the mass of the body and the height at which it travels, the two quantities will therefore dictate the work done on the object which is eventually the same as  magnitude of the gravitational potential energy P.E.

[6] Kinetic energy is a form of energy that an object or a particle has by reason of its motion.Kinetic energy is a property of a moving object or particle and depends not only on its motion but also on its mass.

[7] The connection between kinetic energy and temperature is the relationship between temperature and kinetic energy is that the higher the temperature, the more kinetic energy there is. As the temperature increases, the average kinetic energy increases as does the velocity of the gas particles hitting the walls of the container.

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Explanation:mok in this we learning about sum multiplication on a chart but  it to small but the answer 52

Answer:

Laboratory equipment is generally used to either perform an experiment or to take measurements and gather data. Larger or more sophisticated equipment is generally called a scientific instrument.

Answer:

They have different DNA and different physical appearance

Explanation:

Because if the sperms fertilize two different eggs the DNA will be different too and if the sperms are different the physical appearance will be different also

Answer:

cohesion

Explanation:

just got it right

Answer:

Cohesion

Explanation:

"cohesion: the attraction between molecules within a substance; the tendency of the molecules of a substance to "stick together" or group together" (edge)

Answer: There are 4.8 x 1024 hydrogen atoms in 2.0 moles of CH4

Answer:

There are 4.8 x 1024 hydrogen atoms in 2.0 moles of CH4 .

Explanation:

Answer:

3.6 micrograms answers (c)

Explanation:

Answer:

5.399772727e22 atoms/particles or 5.39 x 10^22 atoms/particles

Explanation:

so to convert you’re going to convert grams to moles and moles to atoms/particles:

grams to moles:

23g CF4 x 1 mol

———— = 0.26136 mol

88g (molar mass of CF4)

moles to atoms/particles:

[2.066 • 10^23 is avogadro's number and is always used to convert to atoms/particles]

0.26136 mol x 2.066 • 10^23

———————

1 mol

this gives you 5.399772727e22 atoms/particles

so 5.399772727e22 atoms/particles or 5.39 x 10^22 atoms/particles for scientific notation

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Answer:

It becuase it normally does that and normally down the groups number of energy level increases so there a bigger and greater radius

Explanation:

Answer:

A liquid

Explanation:

Liquids has an indefinite shape, which means it could change from one shape to another. For example, if you pour water into a rectangular fish tank. The shape of the liquid changes into a rectangle. Definite volume means its volume is consistent and that it is unchangeable. If you fill the rectangular fish tank with water, the volume of the water stays the same even though it changes shape.

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Answer:

Rule 1. The element with the lower group number is written first in the name; the element with the higher group number is written second in the name. Exception: when the compound contains oxygen and a halogen, the name of the halogen is the first word in the name.

Explanation:

When naming binary covalent compounds, the element listed first will be the one that is lower in group number.

Covalent compounds versus ionic compounds are the two groups into which chemical compounds are often divided. Ionic compounds are composed of atoms or molecules that have gained or lost electrons, causing them to become electrically charged.

Covalent or molecular compounds often emerge from the interaction of two nonmetals. By sharing electrons, the elements combine to create a compound, producing and electrically neutral molecule. When naming binary covalent compounds, the element listed first will be the one that is lower in group number.

Therefore, when naming binary covalent compounds, the element listed first will be the one that is lower in group number.

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Gas is a state of matter that have loosely moving particles. The closeness of the gas and intermolecular forces deviates from the ideal equation.

The gas consists of particles that may be too close resulting in lowering the speed that let intermolecular forces become significant at low-temperature and high pressure.

The intermolecular forces present in the gases differs from obeying the ideal gas conditions and contradicting the ideal gas rule of no collision and inter-molecular attraction with other gases.

Therefore, option A. intermolecular forces and option C. closeness of the particles are the reasons for the deviation.

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Answer:

answer in  picture

Explanation:

What is the empirical formula for ribose (C5H10O5)?

C. CH20