are these reactions balanced or unbalanced ?

The VSEPR drawing for the compounds in the question are shown in the images attached.

We have to know that according to the valence shell electron pair repulsion theory, the structure of the molecule can be found by looking at the number of electron pairs that surround the central atom in the molecule.

Now the structure of the compounds as we can see in the images that ahve been attached are based on the Vlence Shell electron pair repulsion drawing for each of the compounds that we have mentioned in the question.

We can see that the structure of the compound must have a central atom and then the other atoms in the molecule are arranged around the central atom of the molecule.

The molecule would have a definite shape that is based on the number of electron shells in the molecule.

Learn more about molecule:https://brainly.com/question/19922822

#SPJ1

Answer:

Explanation:

In water, silver nitrate (AgNO3) dissolves to generate the ions Ag+ (silver) and NO3- (nitrate). When the substance is dissolved in water, the ions are separated and become solvated, or surrounded by water molecules. Water molecules' oxygen atoms join the metal ion in a coordinate covalent bond that gives the metal ion a pair of electrons. By preventing it from interacting with other ions or molecules in the solution, this aids in stabilising the metal ion. As a result of their hydrogen bonds with the water molecules around them, the nitrate ions are likewise stabilised in solution.

Answer:

Uranium experiences a stronger net force holding its protons and neutrons together than barium.

Explanation:

Answer:

9 times Avogadro's number, because there are a total of 9 oxygen atoms in the copper sulfate hydrate being considered: 4 from the sulfate

Explanation:

Answer:

623 kgm^-3

Explanation:

Density = Mass/Volume

Mass = 1209 kg

Volume = 1.94 m^3

Density = 1209 / 1.94 kgm^-3

             = 623.1958763 kgm^-3

             = 623 kgm^-3 (3sf)

1 mole of magnesium atoms will react with 2 moles of oxygen molecules. This is because the chemical equation for the reaction between magnesium and oxygen is: Mg + O2 → MgO.

A chemical equation is a symbolic representation of a chemical reaction, showing the reactants (starting materials) on the left side and the products (resulting substances) on the right side. The symbols used to represent the reactants and products are chemical formulas, which use the symbols of the elements in the reaction. The arrow between the reactants and products indicates the type of reaction taking place. The coefficients next to the symbols and formulae of entities indicate the number of moles of each species that are involved in the reaction. The overall reaction is balanced when the number of atoms of each element on the left side of the equation is equal to the number of atoms of that element on the right side of the equation.

This equation shows that for every 1 mole of magnesium atoms, 2 moles of oxygen molecules are required for the reaction to take place. Therefore, 1 mole of magnesium atoms will react with 2 moles of oxygen molecules.

To learn more about chemical equation
https://brainly.com/question/13847161
#SPJ1

The sections of the heating curve illustrate this process Section A followed by B. Therefore, option D is correct.

The term heating curve is defined as the graphical representation of the correlation between heat input and the temperature of a substance.

At section, A solid Ice at temperature 0°C can heat  for about 10 mins and all the energy generated from heating up the ice is used to split the bonds which binds the ice together as a solid.

At Section, B the liquid water at 100°C covert to vapor because the heat energy required here split the bond between the water molecules then they are move in random directions as vapor.

Thus, option D is correct.

To learn more about the heating curve, follow the link;

https://brainly.com/question/10481356

#SPJ1

Your question is incomplete, probably your question was

As a sample of water is heated, the energy is used to overcome the attractions between the molecules so that they are no longer held close together and can move in random directions. Then, the kinetic energy of its molecules increases. Which sections of the heating curve illustrate this process?

As a sample of water is heated, the energy is - 1

Image is attach below

If the volume of the balloon was 4.21L when the temperature was 25.0°C, 8.42L will be the volume of the balloon be when the temperature is 50.0°C. if Mass and pressure is constant.

Hence, in the above case it is shown that temperature is rising twice of its original value so, the volume of that given mass of gas in the balloon will also increase by twice.

Solution:

4.21L=25.0°C

4.21L×2=50.0°C

8.42L=50.0°C

8.42L will be the volume of the balloon be when the temperature is 50.0°C.

To know more about volume visit

https://brainly.com/question/12050285

#SPJ1

Cathode: 2 Ag+ (aq) + 2 e- → 2 Ag (s). Anode: 2 H+ (aq) → H2 (g) + 2 e-.

What is cathode ?

A cathode is an electrode in an electrical circuit from which electrons flow out. It is usually made of metal and is negatively charged. Cathodes are commonly used in electronic devices such as batteries, lamps, and vacuum tubes. In a battery,

the cathode is the terminal which provides a negative charge and is usually connected to the negative terminal of the battery. In a vacuum tube, the cathode is the source of electrons which flow through the tube to the anode, which is the positive terminal.

To learn about more cathode .

https://brainly.com/question/4052514

#SPJ1

Answer:

Step 1: Use the kn*fe to cut the rubber tubing into two pieces.

Step 2: Use one plastic bag to filter the pond's murky water. Place the bag over the plastic cup and pour the water into it.

Step 3: Place the filtered water from the plastic bag into the 5-L glass bottle.

Step 4: Add a few drops of the liquid bleach to the water in the glass bottle.

Step 5: Place the nylon jacket over the top of the glass bottle and secure it with the rubber tubing.

Step 6: Place the glass bottle in direct sunlight and let it sit for at least an hour.

Step 7: Remove the nylon jacket and rubber tubing from the glass bottle.

Step 8: Use the second plastic bag to filter the water from the glass bottle.

Step 9: Enjoy the drinkable water!

Explanation:

Answer:

A balanced chemical reaction is an equation where the number of atoms of each type in the response is the same on both reactants and product sides.

Explanation: Burning, and cooking are two examples. :)

Hope you are happy :)

8 acidic oxides, take your pick <3

Aluminium oxide.

Silicon dioxide.

Phosphorus oxides.

Sulfur oxides.

Chlorine oxides.

Iron oxides.

Chromium oxides.

Vanadium oxides

Answer:

Clastic or detrital sedimentary rocks are made from pieces of bedrock, sediment, derived primarily by mechanical weathering.

Explanation:

In KClO3, the proportions of K, Cl, and O are 31.9%, 28.9%, and 39.1%, respectively.

There are three ways to define bases and acids. A strong base and a strong acid, respectively, called KOH K O H and HClO3 H C l O 3, react to form KClO3 K C l O 3, a salt.

A powerful oxidising agent with several applications is potassium chlorate (KClO3). It is or has formerly been a part of fireworks, explosives, safety matches, and disinfectants. The disproportionation of sodium hypochlorite results in the formation of sodium chloride and sodium chlorate initially.

To know more about KClO3 visit:-

https://brainly.com/question/19131349

#SPJ1

Answer:

The minimum amount of NaOH(aq) solution needed to add is 0.0560 L. This can be calculated by using the following equation:

Moles of Cd2+ = 0.0220 M x 0.300 L = 0.0066 mol

Moles of NaOH = 0.0066 mol x 2 = 0.0132 mol

Volume of NaOH = 0.0132 mol/1.25 M = 0.0560 L

Explanation:

Answer: chemical change

Answer:

Volume is how much space the object is taking up, whereas mass is the measurement of the amount of matter in the object.

Explanation:

3.00 x 108 m/s should be written in scientific notation. Medical Notation (numbers less than 1.0) Add a decimal place after the decimal, to the right. To the left of the decimal point, there should only be one number. The brand-new number ranges from 1.0000 to 9.9999.

For the purpose of providing an exact result, certain elements of scientific notation must be included. In scientific notation, all numbers have the format "m x 10n. Important components for determining the scientific notation include the following:

Decimal: You move the decimal a specific number of times to the right or left of the coefficient to discover the scientific notation until it becomes a number equal to or greater than one and less than 10.

Coefficient: To calculate this value, the decimal point must move a predetermined amount of times. An amount that is one or larger and less than ten is referred to as a coefficient.

Base: The base number is always 10. The exponent comes into play when multiplying to arrive at the final solution.

Learn more about scientific notation here: https://brainly.com/question/6459088

#SPJ1

Answer: 1s2 2s2 2p4

Explanation:

Recall the number of electrons an orbital can have:

s orbitals have 2, p orbitals have 6, d orbitals have 10, f orbitals have 14, and so on.

Oxygen in its neutral state would have 8 electrons.

To summarize the diagonal filling order, it goes from the least energy level to the most, and the orbital with the least amount of orbitals to the most.

So, the order for this will go from 1 and end at 2 (for energy level,) then s, s again (as energy level 1 has 1s orbital only,) and p.

So, the first energy level, 1s2 (2 electrons), leaves the remaining six electrons.

Completely fill the s orbital (another 2 electrons), and the remaining 4 electrons will be in the respective p orbital.

Thus, it is 1s2 2s2 2p4.

The mass of hexane, C₆H₁₄ that would be needed to produce 562 grams of carbon dioxide, CO2 is 183 g

We'll begin by writing the balanced equation for the reaction.

2C₆H₁₄ + 19O₂ → 12CO₂ + 14H₂O

From the balanced equation above,

528 g CO₂ were produced from 172 g of C₆H₁₄

With the above information, we shall determine the mass of hexane, C₆H₁₄ needed to produce 562 g CO₂. Details below:

From the balanced equation above,

528 g CO₂ were produced from 172 g of C₆H₁₄

Therefore,

562 g of CO₂ will react to produce = (562 × 172) / 528 = 183 g of C₆H₁₄

Thus, the mass of hexane, C₆H₁₄ needed is 183 g

Learn more about mass:

https://brainly.com/question/25824598

#SPJ1

The number of moles of the ideal gas is 0.12 moles. Option A

In the context of the problem that we have here, we are looking at the ideal  gas equation. When we look at the idea gas equation, we can tell that we would have the pressure of the gas, the volume of the gas as well as the temperature of the gas in view as is the case that we have here.

Thus, the idea that we are asked to pass across in the question is that we should be able to find out the number of moles that we have in the compound that have the variables that have been listed here.

Pressure (P) =  1 atm

Volume (V) = 1 L

Temperature (T) = 1 K

Number of moles (n) = ?

Using;

PV = nRT

n = PV/RT

n = 1 * 1/0.082 * 1

n = 0.12 moles

The moles of the gas is 0.12 moles.

Learn more about ideal gas:https://brainly.com/question/28257995

#SPJ1

"Certainly no muscular fatigue to sustain, while it procures for him good, unfailing wages, besides a healthy workshop gratis."

To know more about healthy workshop conditions quote, check out :

brainly.com/question/10588742

#SPJ1

Answer: The answer is Conduction

Answer:

Conduction

Explanation:

Conduction happens when materials or objects are in direct contact with each other. The molecules in the warmer object vibrate faster than the ones in the cooler object.

The most common example is the molar volume of a gas at standard temperature and pressure (STP), which is equal to 22.4 L for 1 mole of any ideal gas at 273.15 K and 1 atm of pressure.

Stoichiometry refers to the quantitative relationship between reactants and products. Calculating the quantities of reactants needed to make a given quantity of products, or the quantities of products resulting from a given quantity of reactants, is required in stoichiometric problems. Gas laws must be taken into account for the calculation if one or more reactants or products in a chemical reaction are gases. The findings of ideal gas law applications are often accurate to within 5%. We go over a few key ideas that are crucial for solving Stoichiometry Problems involving Gases in the sections below.

Stoichiometry and gas laws both rely on the mole notion as their foundation. A mole is an exact measurement of a substance. Based on the quantity of identities, a mole is a unit (i.e. atoms, molecules, ions, or particles). The number of identities in a mole of anything is equal to the number of atoms in exactly 12 grams of carbon-12, the most common isotope of carbon.

Learn more about Ideal Gas Law- Molar Volume: https://brainly.com/question/15132707

#SPJ1

Helen takes 35 nights to knit a total of 175 centimeters of scarf. Hence, she will take 36 nights to knit 180 centimeters of scarf.

Length is a basic measurement in for an object which is basically taken in meters or centimeters. The basic unit of length in American standard is meters (m) and in CGS system it is centimeters.

It is given that, Helen knit a total of 175 centimeters of a scarf over 35 nights. Then, the length she knit in one nigh is calculated as:

175/35 = 5 cm.

Therefore, the number of nights required to complete 180 cm is :

180 /5 = 36

Thus, she will take 36 nights to knit a total of 180 cm of scarf.

Find more on length units:

https://brainly.com/question/3217720

#SPJ1

The number of times 1.5 billion plastic bottles laid end to end could encircle the Earth would be 9.34 times.

Size of bottle = 9.8 inches

1 foot = 12 inches

Size of 9.8 inches bottles in foot = 0.8167 ft

Also, 3.28 ft = 1 meter

        0.8167 ft = 0.8167x1/3.28

                       = 0.2490 meter

1000 meter = 1 km

0.2490 meter = 0.2490/1000

                      = 0.000249 km

Total number of bottles = 1.5 billion

Total length of 1.5 billion bottles laid end to end  in kilometers = 1,500,000,000 x 0.000249 = 373,500 km

Number of times the bottle could encircle the earth = 373,500/40000

= 9.34 times

Thus, 1.5 billion plastic bottles would encircle the Earth about 9.34 times if laid end to end.

More on dimensional analysis can be found here: https://brainly.com/question/13078117

#SPJ1

Answer:

Acyclic or Open-chain compounds. Cyclic or Closed-chain compounds.