How is force and gravity work together with simple objects?

The coefficient of ammonia in the above chemical equation is 3.

A chemical equation is said to be balanced when the number of the atoms involved in the reactants side is equal to the number of atoms in the products side.

Balancing chemical equations involves the addition of stoichiometric coefficients to the reactants and products.

According to this question, ammonia reacts with oxygen gas to produce nitrogen oxide and water as follows:

4NH₃ + 50₂ → 4NO + 6H₂O

Based on the above balanced equation, it can be said that the coefficient of ammonia is 4.

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The answer of this question is True.

About 20 percent of your daily energy needs is determined by your BMR.

BMR stands for basal metabolic rate.What is Basal Metabolic Rate (BMR)?

BMR is the amount of energy, in calories, used by your body when at rest.

It is an estimation of the number of calories required to keep your body functioning while at rest.

In other words, it is the minimum amount of calories your body requires to carry out its everyday processes, such as breathing and circulating blood, while at rest.

There are several factors that affect BMR, including age, gender, height, weight, and body composition.

A higher BMR implies that the body requires more calories to maintain its energy requirements.

Hence, about 20 percent of your daily energy needs is determined by your BMR.

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Answer:

A. would be your answer

Explanation:

Decomposers are especially important in retaining nutrients in their cells thus preventing loss of those nutrients from the root zone.

In an ecosystem, the decomposing web is important because decomposers help remove waste and use that energy to provide food for other animals.

An ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.

Energy enters the ecosystem through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass  which is present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.

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Answer:

Going through a phase. Adding or removing energy from matter causes a physical change as matter moves from one state to another. For example, adding thermal energy (heat) to liquid water causes it to become steam or vapor (a gas). Physical changes can also be caused by motion and pressure.

Explanation:

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.Answer:

Periods are horizontal rows (across) the periodic table, while groups are vertical columns (down) the table. Atomic number increases as you move down a group or across a period.

Explanation:

Answer:

C. Tightly packed protons and neutrons

Explanation:

It consists of two sub-atomic particle namely proton and neutron.

This dense nucleus is responsible for most of the mass of atom.

Answer:

C. tightly packed protons and neutrons

Explanation:

The nucleus of an atom is made of protons and neutrons with electrons orbiting the nucleus.

Answer:

They form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands. They perform a variety of functions that include protection, secretion, absorption, excretion, filtration, diffusion, and sensory reception

Explanation:

They form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands. They perform a variety of functions that include protection, secretion, absorption, excretion, filtration, diffusion, and sensory reception

The moles of water produced from 3.07 mol of H2O2 are 64.47 moles. Answer: 64.47

Part A Given the following decomposition reaction, calculate the moles of water produced from 3.07 mol of

H2O2.2 H2O2(1) → 42 H2O(l) + O2(g)

Molar ratio between H2O2 and

H2O is 2:42 or 1:21.

Therefore, moles of water produced from 3.07 mol of H2O2 is:

Moles of water produced = Moles of H2O2 × 21/1 = 3.07 × 21 = 64.47 (approx)

Therefore, the moles of water produced from 3.07 mol of H2O2 are 64.47 moles.

Answer: 64.47

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Expressing the answer with the appropriate units, we have:

3.07 moles of water.

Moles of water: Moles of a substance are a measure of the amount of that substance present. It is a unit used in chemistry to quantify the number of particles (atoms, molecules, or ions) in a sample.

The balanced equation for the decomposition reaction of hydrogen peroxide \(\rm(H_2O_2)\) is: \(\rm\[2H_2O_2(\ell) \rightarrow 2H_2O(\ell) + O_2(g)\]\)

According to the stoichiometry of the reaction, for every 2 moles of \(H_2O_2}\) consumed, 2 moles of \(H_2O\) are produced.

To calculate the moles of water \((H_2O)\) produced from 3.07 moles of \(H_2O_2\), we can set up a ratio: (3.07 moles \(\rm H_2O_2\)) x (2 moles \(\rm H_2O_\) / 2 moles \(\rm H_2O_2\)) = 3.07 moles \(\rm H_2O\)

Therefore, from 3.07 moles of \(\rm H_2O_2\), 3.07 moles of \(\rm H_2O\) are produced.

Thus, Expressing the answer with the appropriate units, we have:

3.07 moles of water.

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The initial volume of the container can be calculated using the ideal gas formula, PV = nRT, where P is pressure, V is volume, n is number of moles, R is gas constant, and T is temperature:

The best illustration of Avogadro's law is when a balloon is inflated. The volume of the balloon grows as you add moles of gas. Similar to how a balloon loses gas and its volume as you collapse it

According to Avogadro's law, all gases with an identical volume and the same temperature and pressure have an equal number of molecules. The volume of an ideal gas at a certain mass.

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All of the following are qualitative tests that are often used to identify unknown ionic compounds except titration.

Qualitative tests are conducted to determine the presence or absence of certain ions or compounds in a sample based on their characteristic reactions. Common qualitative tests include flame tests, precipitation reactions, color changes, and gas evolution tests.

Titration, on the other hand, is a quantitative technique used to determine the concentration of a specific substance in a solution by reacting it with a standardized solution of another substance. It is not typically used as a qualitative test for identifying unknown ionic compounds.

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Answer:

b) interpreting the results of his experiment

Explanation:

i'm smart like that

Answer:

1280.27 g

Explanation:

Pressure = 22 mmHg / 760 = 0.0289 atm (Converting to atm by dividing by 760)

Volume = 2.7 L

Temperature = 31 ∘C + 273 = 304 K

Mass = ?

Using the ideal gas equation;

PV = nRT

n = RT / PV = 0.0821 * 304 / ( 0.0289 * 2.7)

n = 319.86 mol

Mass = Number of moles * Molar mass

Mass = 319.86  * 4.002602

Mass = 1280.27 g

assuming that the volumes of reactants and products are measured at the same temperature and pressure if 2.75l n2 reacts with 7.75l h2, 10.50 L  is the theoretical yield (in liters) of nh3

N2 + 3H2 = 2NH3, volume: 2.75 +7.75 = 10.50. volume of ammonia gas is 10.50 L because of law of conservation of mass Gas volume  the correlation among pressure, volume, moles, and temperature. is the volume that mole of a chemical substance or a combination of substances currently takes. As a result, at STP, this same mole ratio volume of a gas is 22.4 litres. A gas's volume refers to the amount of three - dimensional space that the gas occupies. The volume of a gas embedded in a sealed jar is identical to the volume of the container. A system's volume is a critical comprehensive criterion for trying to describe its thermodynamic state. The volume, an intensive estate, is the volume of the system per unit mass.

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The mass of an ion that has 13 electrons, 12 protons, and 14 neutrons is 26 u (option C).

Mass number of an element is the total number of protons and neutrons in an atomic nucleus.

The number of protons and electrons of an atom is the number of positively charged and negatively charged subatomic particles in an atom respectively.

According to this question, an ion has 13 electrons, 12 protons, and 14 neutrons. The mass number can be got by summing the number of neutrons and protons in the atom as follows:

mass no = 12 + 14 = 26u

Therefore, 26 u is the mass of the ion described in this question.

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Mole of HCI = 0.00700 moles

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Answer:The energy level is three

Explanation:

LOL i just know it

Answer: it is 3

Explanation:

just trust me

Answer:

4.25*10^18

Explanation:

1 mole =6.023*10^23 particles

so 7.07*10^-6 mole=6.023*10^23*7.07*10^-6 particles=4.25*10^18 particles

C) BCI3 is the Lewis structure would be an incomplete octet.

The octet refers to the eight electrons in the outermost shell of each atom. The boron trichloride forms an incomplete octet and hence it does not obeys octet rule.

The central atom boron forms three covalent compounds from the three outermost electrons in the atom. The reason for covalent bond is non-metal characteristic of each atom. The electron sharing occurs with chlorine. However, each chlorine has complete octet. Boron trichloride is an inorganic compound used in organic synthesis.

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All statements given in the question are incorrect except for 1 statement. The correct statement is:1 s = 10^3 ms.

In the question, we have been provided with 5 statements. We are asked to select all the correct statements from those 5 statements. Given below are for each statement:1 g = 10^3 mg:This is incorrect. 1 g is equal to 1000 mg.10^-3 g = 10^12 ng:This is incorrect. 10^-3 g is equal to 1 mg.1 km = 10^5 mm:This is incorrect. 1 km is equal to 1,000,000 mm.1 s = 10^6 μs:This is incorrect. 1 s is equal to 1,000,000 μs.1 s = 10^3 ms:This is correct. 1 s is equal to 1000 ms.Therefore, the main answer to this question is that only 1 statement is correct, which is:1 s = 10^3 ms.

Metric units are based on the power of ten. The base units of the International System of Units (SI) are the meter, kilogram, second, kelvin, ampere, mole, and candela. All other metric units can be derived from these basic units.The first unit in each conversion is in grams, seconds, or kilometers. The metric units for millimeters, microseconds, and nanograms are derived from these basic units. One gram is equal to 1000 milligrams (mg), 1 second is equal to 1000 milliseconds (ms), and 1 kilometer is equal to 1000000 millimeters (mm). 10^-3 g is equal to 1 milligram (mg), 10^6 μs is equal to 1 second (s), and 10^12 ng is equal to 1 gram (g).

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Answer:

Silica.

Explanation:

Argon fluorohydride or argon hydrofluoride is an inorganic compound with the chemical formula HArF. It is a compound of the chemical element argon.

Neon is a very inert element, however, it has been reported to form a compound with fluorine. It is still questionable if true compounds of neon exist, but evidence is mounting in favor of their existence.

Answer:

This is a simple stoichiometry problem using the ideal gas law.  

First, take the grams of ammonium carbonate and convert it to moles using its molar mass and dividing. 11.9 g/96.0932 g/mol= .12384 mol  

Now use a molar conversion using the balanced equation,  

1 mol (NH4)2CO3 ---> 4 mol gas formed (2 mol NH3 + 1 mol CO2 + 1 mol H2O) = .12384 x 4 = .49535 mol gas  

PV=nRT  

V=nRT/P= .49535mol (.08206 Lxatm/molxK) (296K)/ (1.03 atm)=11.682 L

Explanation:

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Can I get Braineist.

Stoichiometry is used to determine the mass and the moles of the reactants and the products. 48 gms of ammonium carbonate is required to produce 1 mole of ammonia.

Stoichiometry coefficients are the numbers before the molecules of the reactant or the product side of the reaction that presents the numerical quantity of the chemical species.

The balanced chemical reaction is given as:

(NH₄)2CO₃ → 2 NH₃ + CO₂ + H₂0

Hence, 2 moles of ammonia are produced from 1 mole of ammonium carbonate. So, 0.5 moles of ammonium carbonate will be needed to produce 1 mole of ammonia.

Mass of ammonium carbonate is calculated as:

Mass = moles × molar mass

= 0.5 mol × 96.09 g/mol

= 48 gm

Therefore, 48 gm of ammonium carbonate is required to produce 1 mole of ammonia.

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Just as the constellations change with the seasons, so does the night sky.

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Answer: Ionic attractions

Explanation:

Ionic bonding is a type of chemical bond that involves the electrostatic attraction between oppositely charged ions.

Rubbing alcohol evaporates quickly at room temperature" is a physical property.  "A slice of apple will turn brown if left out in the air" is a chemical property.  "Sodium metal (Na) reacts violently with water" is a chemical property.  "Chlorine gas (Cl2) is a yellowish-green color" is a physical property.  "The chemical compound nitrogen triiodide (NI3) explodes with just the slightest touch" is a chemical property.  "Mercury (Hg) is a liquid at room temperature" is a physical property.

physical: Evaporation is a physical property because it is a change in the state of a substance (from liquid to gas) that does not involve a chemical reaction.

chemical: The browning of an apple slice is a chemical change because it involves a chemical reaction that produces new substances.

chemical: The reaction of sodium metal with water is a chemical change because it involves a chemical reaction that produces new substances.

physical: Color is a physical property because it is a characteristic that can be observed without changing the substance's chemical composition.

chemical: Nitrogen triiodide exploding is a chemical change because it involves a chemical reaction that produces new substances.

physical: Mercury is a liquid at room temperature because of its atomic structure and the physical state of matter is determined by the strength of the intermolecular forces between atoms.

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Based on the molar concentration, the volume of  FeCl₃ required is 371 mL

The mole ratio of the reaction is determined from the equation of the reaction as follows:

Equation of reaction: FeCl₃ (aq) ----> Fe³⁺ (aq) + 3 Cl⁻ (aq)

From the equation of reaction, the mole ratio of FeCl₃ to Cl⁻ is 1 : 3

The moles of chloride ions in 650 mL of  0.300 M is calculated from the formula below:

Moles of Cl⁻ ions = 0.300 * 650/100

Moles of Cl⁻ ions = 0.195

Moles of FeCl₃ required =  0.195/3

Moles of FeCl₃required = 0.065

volume of  FeCl₃ required = 0.065 / 0.175

volume of  FeCl₃ required = 0.371 L or 371 mL

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Answer:

If temperature is held constant, the equation is reduced to Boyle's law. Therefore, if you decrease the pressure of a fixed amount of gas, its volume will increase. ... Gay-Lussac's law states that at constant volume, the pressure and temperature of a gas are directly proportional.

Explanation:

i hope this helped

Product prediction and solubility rules in the following chemical reactions

MgBr2 (aq) + Cl2 (g) → MgCl2 (aq) + Br2 (aq)

Reaction type: Substitution

2 Al (s) + Fe2O3 (s) → Al2O3 (s) + 2 Fe (s)

Reaction type: Redox

ZnCl2 + 2 AgNO3 → Zn(NO3)2 + 2 AgCl

Reaction type: Double substitution

H2SO4 (aq) + 2 NaOH (aq) → Na2SO4 (aq) + 2 H2O (l)

Reaction type: Neutralization

4 Al (s) + 3 O2 (g) → 2 Al2O3 (s)

Reaction type: Oxidation

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Answer:

The shapes of continents fit together like a puzzle.

Explanation:

Just look at the east coast of South America and the west coast of Africa—it's almost a perfect fit! Identical rocks have been found on different continents. These rocks formed millions of years ago before the continents separated.