Determine the total pressure of a gas mixture that contains O

In the third equation, the oxygen with atomic weight 16 undergo alpha decay and produce C₆¹³ . The alpha particle emitted is also called helium nuclei. During this decay some gamma radiations also produce as a byproduct.

It is also called as radioactive decay during which an unstable nucleus emits radiation and is transformed into the nucleus of one or more other elements.

The atom emit the alpha particles consist of two proton and two neutrons. Which is also called Helium nuclei.

When atom undergoes the alpha emission the original atom convert into the atom having mass number 4 less than and atomic number 2 less than the starting atom.

Alpha radiations can travel in a short distance.

These radiations can not penetrate into the skin or clothes.

These radiations can be harmful for the human if these are inhaled.

These radiations can be stopped by a piece of paper.

Hence, the oxygen with atomic weight 16 undergo alpha decay and produce C₆¹³  and an alpha particle (He)

Learn more about Nuclear reaction here ;

https://brainly.com/question/16526663

#SPJ1

Answer:

where is diagram. sorry.

Answer:

James Chadwick conducted an experiment where he assailed the element Beryllium with alpha particles that came from the radioactive decay of Polunium. The experiment results showed highly penetrating radiation emitted from the Beryllium. In this, Chadwick proposed that radiation consisted of uncharged particles, which were later founded as neutrons.

Answer:

A

Explanation:

as the temperature and speed is higher pressure will be higher

as the temperature is higher particles will be more active

and as speed is they will collide with more force

so the pressure will be higher in container B

Answer:

I need to see the chapter lol /:

Answer:

1: background sound.

2: room tone

3: middle-frequency

4: Feedback

5: lapel mic

6: line level

7: High impedance

An example of human intervention in the genes is; humans breed dogs to be smaller and more friendly. Option A

We know that the gene is the unit of inheritance that can be found in the chromosome of the organism. The genes that the organism does have is what would tell must the observed traits of the organism and this is called the phenotype of the organism.

We know that human's do have an impact with the fact that the genes can spread in an organism. In many cases, we can see the alteration of the genes when we deal with the genetic make up of the pets.

Learn more about genes:https://brainly.com/question/8832859

#SPJ1

Answer:

              30.942 g of NaCl

Explanation:

The balance chemical equation is

CuCl₂ + 2 NaNO₃ → Cu(NO₃)₂ + 2 NaCl

Calculate moles of CuCl₂

Moles = 37 g / 134.45 g/mol = 0.275 mol

Calculate moles of NaNO₃

Moles = 45 g / 84.99 g/mol = 0.529 mol

According to balanced chemical equation the mole ratio of CuCl₂ : NaNO₃ is 1 : 2.

Hence,

0.275 : 0.550 or  0.529 : 0.264

This means that the NaNO₃ is the limiting reagent.

Now mole ratio of NaNO₃ and NaCl is 2 : 2 or 1 : 1.

Hence,  0.529 mol of NaNO₃ will produce 0.529 mol of NaCl.

Now,

Mass = Moles x M.Mass

Mass = 0.529 mol x 58.44 g/mol

Mass = 30.942 g of NaCl

The following balanced chemical equation may be used to describe the interaction between aluminum (Al) and calcium nitrate (Ca(NO₃)₂):

2 Al + 3 Ca(NO₃)₂ → 2 Al(NO₃)3 + 3 Ca

Reactants are the chemicals that begin a chemical reaction, while products are the compounds that are created as a result of the reaction.

The substances that initiate a chemical reaction. Products are the substances that are created during the reaction. Compounds or elements can act as reactants and products.

Aluminium and calcium nitrate interact in this reaction to form aluminium nitrate (Al(NO₃)₃) and calcium (Ca), which are the end products.

Learn more about chemical equation, here:

https://brainly.com/question/28972826

#SPJ1

Answer:

              6.97 moles

Explanation:

Formula Used,

Moles = No. of Molecules ÷ 6.022 × 10²³

Putting Values,

Moles = 4.20 × 10²⁴ ÷ 6.022 × 10²³

Moles = 6.97 moles

Answer:

Explanation:

The new pressure can be found by using the formula for Boyle's law which is

\(P_1V_1 = P_2V_2\)

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

Since we are finding the new pressure we have

\(P_2 = \frac{P_1V_1}{V_2} \\\)

We have

\(P_2 = \frac{50 \times 2}{200} = \frac{100}{200} = \frac{1}{2} \\ \)

We have the final answer as

Hope this helps you

Diamonds are composed of carbon in a tetrahedral lattice. That is option C.

A diamond of defined as an allotrope or one of the major forms of the element, carbon in nature.

These carbon atoms are arranged within the diamond in a face centered cubic tetrahedral lattice shape.

Therefore, Diamonds are composed of carbon in a tetrahedral lattice.

Learn more about carbon here:

https://brainly.com/question/19083306

#SPJ1

Diamonds are composed of carbon in a tetrahedral lattice. The correct option is C.

Diamonds are one of the allotropes of carbon. The other allotrope of carbon is graphite.

Thus, diamonds are made up of carbon atoms that are tightly packed together. Each carbon atom in a diamond is strongly bonded to 4 other carbon atoms, resulting in the formation of a tetrahedral structure.

More on diamonds can be found here: https://brainly.com/question/9286031

#SPJ1

Answer:

First, we need to convert 0.750 g of lidocaine into milligrams (mg):

0.750 g = 750 mg

Next, we can calculate the total volume of the solution needed to administer 750 mg of lidocaine. Since each 150 mL of the solution contains 500 mg of lidocaine, we can set up the following proportion:

(750 mg) / (500 mg) = (x mL) / (150 mL)

Cross-multiplying:

500x = 750 * 150

500x = 112,500

x = 112,500 / 500

x = 225 mL

Now, we know that it will take 225 mL of the solution to administer 750 mg of lidocaine.

To find the time it takes to infuse 225 mL at a rate of 300 mL/hr, we can set up another proportion:

(225 mL) / (300 mL/hr) = (y min) / (60 min)

Cross-multiplying:

300y = 225 * 60

300y = 13,500

y = 13,500 / 300

y = 45 min

Therefore, it will take 45 minutes to administer 0.750 g (or 750 mg) of lidocaine at a rate of infusion of 300 mL/hr.

It will take approximately 75 minutes for 0.750 g of lidocaine to be administered through the IV at a rate of 300 mL/hr.

To calculate the time it takes to administer 0.750 g of lidocaine, we need to use the information provided.

Given:

Each 150 mL of the solution contains 500 mg of lidocaine.

The rate of infusion is set at 300 mL/hr.

First, we need to determine the amount of lidocaine administered per mL of the solution:

500 mg of lidocaine per 150 mL of solution = 500 mg / 150 mL ≈ 3.33 mg/mL

Next, we can convert the amount of lidocaine to be administered (0.750 g) to milligrams:

0.750 g * 1000 mg/g = 750 mg

Now, we can calculate the total volume of the solution needed to administer 750 mg of lidocaine:

750 mg / 3.33 mg/mL ≈ 225.23 mL

Finally, we can find the time it takes to administer 225.23 mL of the solution at a rate of 300 mL/hr.:

Time (in hours) = Volume (mL) / Rate (mL/hr.)

Time (in hours) = 225.23 mL / 300 mL/hr ≈ 0.75077 hr.

Converting hours to minutes:

Time (in minutes) ≈ 0.75077 hr * 60 min/hr ≈ 45.05 min

Therefore, it will take approximately 75 minutes for 0.750 g of lidocaine to be administered.

To learn more about lidocaine  here

https://brainly.com/question/33427933

#SPJ2

The addition of hydrochloric acid to a reaction mixture can serve several purposes, depending on the specific reaction and its conditions such as: (1) To provide protons (H⁺), (2) To adjust the pH of the reaction mixture, (3) To remove impurities or byproducts.

(1) To provide protons (H⁺) for acid-catalyzed reactions: HCl is a strong acid, meaning it readily donates protons to other molecules. In some reactions, the presence of HCl can accelerate the reaction by increasing the concentration of protons in the reaction mixture. This can facilitate bond-breaking and bond-forming steps in the reaction mechanism.

(2) To adjust the pH of the reaction mixture: In some reactions, it may be necessary to maintain a specific pH range for the reaction to proceed optimally. By adding HCl, the pH of the reaction mixture can be lowered, making the environment more acidic. Conversely, the addition of a base such as sodium hydroxide (NaOH) can raise the pH of the reaction mixture.

(3) To remove impurities or byproducts: In some reactions, the addition of HCl can help to remove impurities or byproducts that may interfere with the desired reaction. For example, HCl can be used to remove metal oxides or hydroxides from a reaction mixture.

Learn more about protons here:

https://brainly.com/question/1252435

#SPJ1

Answer:

2

Fe and O

Explanation:

Answer:

C

Explanation:

edge2021!!

Answer:  The correct answer is c. change attitudes, beliefs or values.

Explanation:

Of these goals, the hardest to achieve is changing attitudes, beliefs, and values. It is difficult to convince an audience to truly change their attitudes, beliefs, or values based on your presentation since it typically requires establishing trust and respect on a personal level.

Taking into account the reaction stoichiometry, 1 mole of H₂ can be produced by reacting 2 moles of HCI.

In first place, the balanced reaction is:

Mg + 2 HCl  → MgCl₂ + H₂

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

By reaction stoichiometry 2 moles of HCl form 1 mole of H₂.

Learn more about the reaction stoichiometry:

brainly.com/question/24741074

brainly.com/question/24653699

#SPJ1

Answer:

the scrubby plants in the chaparral biome fix CO2 from the atmosphere through photosynthesis and store carbon as starch. The energy from these carbohydrates is passed on to animals and insects that consume the plants. These primary consumers will pass on the carbon’s energy to other animals that prey on them. When plants or animals die and decompose, the carbon in their bodies returns to the earth. Fossil fuels, which are made from ancient decomposed matter, release carbon back into the atmosphere as CO2 when they are burned

Answer:

8Ag2S--->16Ag+S8

Explanation:

thats your answer hope it helps

Answer: American red squirrel

Explanation:

The American red squirrel is the smallest squirrel. The color of the fur may vary from season to season. The color of the squirrel can also vary depending of the environment in which it lives. In summer the black stripe appears on the sides over the white fur. It has a backbone and like other mammals nurses the offsprings. It has a bushy tail. It is a native of North America. Red fur appear on the back and white on the belly. Strong claws, strong muscles, and compact body are other key features of the squirrel.

Answer:10-3

Explanation:

Substituting the given values, we have (0.5 L) / (220 + 273.15 K) = V₂ / (313.15 K).Solving for V₂, we get V₂ = (0.5 L) * (313.15 K) / (220 + 273.15 K).

Calculating this expression, the volume of the balloon when fully cooled by your refrigerator would be approximately 0.38 liters when rounded to two decimal places.To convert Celsius to Kelvin, we need to add 273.15 to the Celsius temperature. Therefore, the temperature inside your refrigerator of 40 degrees Celsius is equivalent to 313.15 Kelvin.Now, let's consider the ideal gas law, which states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.Since the number of moles and pressure remain constant, we can write  the equation as V₁/T₁ = V₂/T₂, where V₁ is the initial volume of the balloon, T₁ is the initial temperature, V₂ is the final volume, and T₂ is the final temperature.

for such more questions on values

https://brainly.com/question/27964828

#SPJ8

The amount of heat energy produced when 1 g of hydrogen and 2 g of nitrogen are reacted, is -6.61 KJ

First, we shall obtain the limiting reactant. Details below:

3H₂ + N₂ -> 2NH₃

From the balanced equation above,

28 g of N₂ reacted with 6 g of H₂

Therefore,

2 g of N₂ will react with = (2 × 6) / 28 = 0.43 g of H₂

We can see that only 0.43 g of H₂ is needed in the reaction.

Thus, the limiting reactant is N₂

Finally, we the amount of heat energy produced. Details below:

3H₂ + N₂ -> 2NH₃ ΔH = -92.6 KJ

From the balanced equation above,

When 28 grams of N₂ reacted, -92.6 KJ of heat energy were produced.

Therefore,

When 2 grams of N₂ will react to produce = (2 × -92.6) / 28 = -6.61 KJ

Thus the heat energy produced from the reaction is -6.61 KJ

Learn more about heat energy:

https://brainly.com/question/31429264

#SPJ1

Scientists cannot pinpoint the changes or variations in the results to a single source when more than one variable is altered during an experiment. The outcomes can be attributed to the independent variable directly by examining and modifying each variable separately.

You can evaluate the outcomes of your experiment to determine how much one adjustment impacted the outcome by testing just one variable at a time. You won't be able to identify the variable that caused the outcome if you're testing two variables simultaneously. A controlled variable is one that is kept constant with the goal of not affecting how an experiment turns out. Controlling any factors that can affect an experiment's outcomes allows us to be certain that the altered variable is what caused our results.

Learn more about variables here-

https://brainly.com/question/17344045

#SPJ9

Answer:

CH4+2O2→CO2+2H2O

Moles of oxygen=3232=1

Moles of carbon dioxide=4422=0.5

Moles of water=1818=1

1 mole of methane reacts with 2 moles of oxygen to give 1 mole of CO2 and 2 moles of water so 0.5 mole of methane will be required which is equal to 0.5×16=8g.

Explanation:

8g

Explanation:

We have to write the electron configuration of Silicon. The atomic number of Si is 14, that means that it has 14 protons (the atomic number is equal to the number of protons of an element). Since the atom is neutrally charged, in this case it is also equal to the number of electrons.

atomic number = n° of protons = n° of electrons = 14

n° of electrons = 14

To write the electron configuration of Si we will have to arrange 14 electrons in the different sublevels. To write the electron configuration we have to place the electrons in a determined order. That order is given by the following image.

This is called the "diagonal rule", to fill the sublevels in the correct order we have to follow the arrows. We start with 1s, then 2s, 2p, 3s, 3p, 4s, 3d, 4p and so on.

In the sublevel s we can place up to 2 electrons, in the sublevel p we can place up to 6 electrons, in the sublevel p 10 electrons and in the sublevel f 14.

s ----> 2 p ----> 6 d ---> 10 p -----> 14

We start with the sublevel 1s and we place two electrons there. Then with the sublevel 2s with two more. then in the 2p we can place 6 electrons. The next one in 3s and we can place 2 electrons there. We have 1s2 2s2 2p6 3s2, we have placed 12, but we needed 14 so the last two will go to 3p. The electron configuration will be:

[Si] = 1s2 2s2 2p6 3s2 3p2

If we look at the periodic table we will see that the noble gas that is closest to Silicon is Neon. The atomic number of Ne is 10. That means that Ne has 10 protons and 10 electrons. So we can replace the first ten 10 electrons of our electron configuration by the electron configuration of Ne.

[Si] = [Ne] 3s2 3p2

Answer: A) [Ne] 3s2 3p2

Answer:

The immune system is made of lungs, liver, intestine, bone marrow, tonsils, adenoids.Spleen, appendix, lymph nodes, and nodes.

Explanation:

Answer:

Xenon is element 54. in a perfect atom it would have 54 neutrons

Answer:

refer to explanation in order V

Explanation:

Atomic number: 54

Protons: 54

Electrons: 54

Neutrons: 77

Mass Number: 131.293 U

6 (1/2): At the upper left is the atomic number, or number of protons. In the middle is the letter symbol for the element (e.g., H). Below is the relative atomic mass, as calculated for the isotopes found naturally on Earth. At the very bottom is the name of the element (e.g., hydrogen).

6 (2/2): On the periodic table, the mass number is usually located below the element symbol.

I hope this helped!

Fluorine (F-) is the element with the fewest valence electrons. Seven electrons make up the outermost shell of fluorine, and one of them is unpaired. As a result, fluorine possesses seven valence electrons altogether.

Eight valence electrons are present in magnesium (Mg2+), nine are present in gallium (Ga+), eight are present in argon (Ar+), four are present in carbon (C+), six are present in sulphur (S2-), and seven are present in fluorine (F-).

Fluorine has a lower number of valence electrons than the other elements because it has a greater effective nuclear charge. This indicates that the fluorine atom will take electrons away from its outermost shell since it is more attracted to electrons than the other elements.

Learn more about electrons  at :

https://brainly.com/question/12001116

#SPJ1

Answer:

D. It's the only one with C6H14 on the reactant side.

Explanation: