Based on the Law of Conservation of Mass, what's the minimum amount of Magnesium that will react with 32g of Oxygen to produce 80.6g of Magnesium Oxide?​

Answer:

76.210kPa

Explanation:

[tex] \frac{p1v1}{t1} = \frac{p2v2}{t2} \\ p1 = \frac{p2v2t1}{v1t1} \\ p1 = \frac{101.325 \times 200 \times 308}{300 \times 273} \\ p1 = 76.210kpa[/tex]

Answer:

Are molecules atoms that are chemically bonded together?

Image result for Molecules are chemically bonded atoms that work as a unit. Should the same kind of molecule be made up of the same kind of elements? Explain your answer

If this interaction is such that the total energy of the system is lowered, then the atoms bond together to form a molecule. Thus, from a structural point of view, a molecule consists of an aggregation of atoms held together by valence forces. Diatomic molecules contain two atoms that are chemically bonded.

Explanation:

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The ratio of metal cationic (+) atom to nonmetal anionic (-) atom in the compound is 1:2.

The term electron configuration shows the arrangement of electrons in an atom. We have the configurations of the atoms as follows;

magnesium - 1s22s22p63s2

bromine - 1s22s22p63s23p64s23d104p5

We can see that the catio is Mg^2+ and the anioin is Br^- hence  the ratio of metal cationic (+) atom to nonmetal anionic (-) atom in the compound is 1:2.

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Answer:

Carbon monoxide

Explanation:

Carbon dioxide and carbon monoxide have the same number of carbon atoms.

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Answer:

How do one confess feelings to her if he is introvert?

Answer:

0.271J/g°C

Explanation:

mass of iron=93.3g

∆°C=65.58

mass of water=75g

C of water=4.184

∆°C=22.4-16.95=5.29°C

mc∆°C of iron = mc∆°C of water

93.3×C×5.29=75×4.184×5.29

C=75×4.185×5.29/93.3×65.58

C=0.271J/g°C

Answer:

9 1/3  liters

Explanation:

N2 + O2 = 2 NO

Find mole weights from table of elements

N =14

O =~16       30 gm is a mole

22.4 l / mole for gases at STP

22.4 * 25/30 = 18 2/3 Liters  of NO  

   but since Nitrogen is N2 it will take 1/2 s much = 9 1/3

*** EDITED ***

According to the stoichiometry and STP conditions if  25.0 g of NO are produced 2269 liters  of nitrogen gas are used.

It is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.

Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.1 mole of nitrogen gives 2 moles of NO, thus as per ideal gas equation which on substitution gives V=1×8.314×273/1=2269.722 liters.

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#SPJ2

Answer:

2.54kpa

Explanation:

p*v/t = constant

6.58/539=p2/2111

p2=211(6.50/539)

Answer:

2.53kpa

Explanation:

p1*v1/t1 = constant

the constant can be changed to p2*v2/t2

v2 can be removed from equation as it is constant

Answer:

No.

Explanation:

No organism can detect X-rays or radio waves

Answer:

no

Explanation:

Many animals, including vampire bats and certain fish and snake species, are able to sense infrared radiation, but this only goes up to wavelengths of 1mm. Longer wavelengths carry much less energy and can't be detected without some kind of resonator to amplify the signal.

Answer: 1.36 atm

Explanation:

A

Explanation:

What cell structure is best represented by the image?

A.

a permeable exoskeleton

B.

a waterproof nuclear envelope

C.

a non-permeable cell wall

D.

a selectively permeable membrane

The neutral phase of a ph scale is 7.

A ph higher than 7 indicates that the substance is basic in nature.

14 is the most basic and 8 is the least basic

A ph lower than 7 indicates the substance is acidic in nature.

1 is the most acidic and 6 is the least acidic.

Glyphosphate, lindane, 2,4-d, chlordane are organic compound that have chlorine in common.

Organic compound are group of chemical substance that have carbon and hydrogen atoms in which the bonds are covalently linked together.

Therefore, Glyphosphate, lindane, 2,4-d, chlordane are organic compound that have chlorine in common and these chemicals are use as herbicides that is kill weeds, or to kill insects or pests because of chlorine present in it.

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Answer:

it is charles's law

Explanation:

volume does matter with pressure

The major product of the given chemical reaction is given as drawn in the attached picture.

A major product in chemistry refers to the product whose amount is the greatest after a chemical reaction has taken place.

In order to find the major product, it is required for the Markovnikov Rule to be applied.

This rule states that when hydrogen is mixed with carbon with more hydrogen, then the major product will be gotten.

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Answer:

The reaction between methane and oxygen to yield carbon dioxide and water (shown at bottom) may be represented by a chemical equation using formulas (top).

Explanation:

The substances undergoing reaction are called reactants, and their formulas are placed on the left side of the equation.

The substances generated by the reaction are called products, and their formulas are placed on the right sight of the equation.

Plus signs (+) separate individual reactant and product formulas, and an arrow (⟶) separates the reactant and product (left and right) sides of the equation.

The relative numbers of reactant and product species are represented by coefficients (numbers placed immediately to the left of each formula). A coefficient of 1 is typically omitted.

Answer:

Is this the full question

Explanation:

Reply or love the message so i can get a notification

Answer:

Combustion of methane (hydrocarbons)

Photosynthesis.

Synthesis of sulfuric acid.

Equilibrium of carbonic acid and carbon dioxide gas.

Biological formation of calcium carbonate.

Rusting of iron.

Production of hydrogen from the action of acid on metal.

Oxidation of alcohol.

Explanation:

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Answer:

A. Enzymes

Explanation:

Enzymes are in our saliva and tears. They help break down pathogens and the cell wall of bacteria.

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Muffin~

Answer:

A. Enzymes.

Explanation:

Enzymes break down things and they are in both our saliva and tears.

I hope it helps! Have a great day!

.-.

Answer:

20÷4=5g/ml, bcz it is in mL but in other situations you will need to convert it to L by dividing it by 1000

Mass= 20.0g

Volume= 4.0mL

Density of substance

[tex]\text{Density} = \frac {\text{Mass}}{ \text{Volume}}[/tex]

[tex] \text{Density} = \frac{20.0 \text{ \: g}}{4.0 \: \text{mL}} \\ \\ \text{Density} = \frac{ \cancel{20.0}\text{ \: g}}{ \cancel{4.0} \: \text{mL}} \\ \\ \text{Density} = 5.0 \: \text{g/mL}[/tex]

[tex]\therefore \text{Option B}= 5.0 \: \text{g/mL is the correct answer}[/tex]

The changes in the mass of the egg and volume of liquid in the beaker are inversely proportional. This demonstrates that volume is moving from one area to another.

Osmosis is a process in which solvent molecules will move from the higher concentration area to the lower concentration area.

When we put egg in any vessel where water is present then water molecule will move into the egg molecule as a result of the osmosis and due to this mass is inversely proportional to the volume. In this phenomenon water is moving from one area to another due to osmosis.

Hence volume is moving from one area to another.

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Russian chemist Dmitri Mendeleev

The work (newton-metres) the dock worker have to exert to lift the boat to 5 m in air is 6506.85 Nm

This is simply defined as the product of force and distance moved in the direction of the force. Mathematically, it can be expressed as

Workdone (Wd) = force (F) × distance (d)

Wd = Fd

Output work = Fd

Output work = 950 × 5

Output work = 4750 Nm

Efficiency = (output / input) × 100

73% = 4750 / input

0.73 = 4750 / input

Cross multiply

0.73 × input = 4750

Divide both side by 0.73

Input work = 4750 / 0.73

Input work = 6506.85 Nm

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The minimum amount of NaOH and HCl that must be present to produce 18.48grams of NaCl is 12.6g and 11.5g  respectively.

The balanced neutralization reaction equation for the formation of NaCl is,

NaOH + HCl ---> NaCl + H2

The molar mass of NaOH = 23+16+1 = 40g/mol

The molar mass of NaCl = 23 +35.5 = 58.5g/mol

If  40g of NaOH = 58.5g of NaCl

∴ x g of NaOH   = 18.48g of NaCl

Make xg the subject of formula,

x g of NaOH = 40 × 18.48/58.5

                     = 739.2/58.5

                     = 12.6g of NaOH

The molar mass of HCl = 1 +35.5 = 36.5g/mol

If  36.5g of  HCl= 58.5g of NaCl

∴ x g   of HCl       = 18.48g of NaCl

Make xg the subject of formula,

x g of HCl       = 36.5 × 18.48/58.5

                       = 674.52/58.5

                       = 11.5g of HCl

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Answer:

4:6    and  4:4

Explanation:

double the right side so double the left side to get these ratios

Answer:

Sodium + water --› Sodium hydroxide + hydrogen gas

Copper carbonate + sulphuric acid --› Copper sulphate + water + carbondioxide

Sulphur + Oxygen --› Sulphur dioxide

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