Which of the following are soluble in isopropyl alcohol:
a) CuSO4
b) Paraffin Wax
c) Dextrose
d) Zinc

Answer: for question 4, the answer would most likely be movement of air, water and rock

Explanation:

Answer:

Explanation:

It is really blurry i cant really see the pic

Answer:

Transition Metal

Explanation:

If you look at a periodic table, you can see that Cu is a transition metal.

Answer:

Wind

Explanation:

It's impossible for them to travel in a wave.

Answer:

Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase. ... These phases occur in strict sequential order, and cytokinesis - the process of dividing the cell contents to make two new cells - starts in anaphase or telophase. Stages of mitosis: prophase, metaphase, anaphase, telophase.

Explanation:

Answer:

120 g of NaCl in 300 g H20   at 90 C

Explanation:

At x = 90   go vertical to the line for NaCl...then go left to the y-axis to find the solubility in 100 g H20   = 40

we want   300 g H20    so multiply this by  3    to get   120 gm of NaCl in 300 g

Answer:

the molarity of the solution would be 10.0 M if 80.0 grams of NaOH were added to 200 milliliters of water.

Explanation:

To calculate the molarity of a solution, we can use the formula:

Molarity = moles of solute / volume of solution in liters

First, we need to calculate the moles of sodium hydroxide (NaOH) in the given mass:

moles NaOH = mass of NaOH / molar mass of NaOH

The molar mass of NaOH is 40.00 g/mol (the atomic mass of Na is 22.99 g/mol, the atomic mass of O is 15.99 g/mol, and the atomic mass of H is 1.01 g/mol).

For 52 g NaOH:

moles NaOH = 52 g / 40.00 g/mol = 1.30 mol

Now, we can calculate the molarity of the solution:

Molarity = moles NaOH / volume of solution in liters

We don't know the volume of the solution for the first case, so we cannot calculate the molarity.

For the second case, we have 80.0 g NaOH and 200 mL of water. We need to convert the volume to liters:

200 mL = 0.200 L

Now, we can calculate the moles of NaOH:

moles NaOH = 80.0 g / 40.00 g/mol = 2.00 mol

Finally, we can calculate the molarity of the solution:

Molarity = moles NaOH / volume of solution in liters

Molarity = 2.00 mol / 0.200 L

Molarity = 10.0 M

Therefore, the molarity of the solution would be 10.0 M if 80.0 grams of NaOH were added to 200 milliliters of water.

Answer:

flourine

Explanation:

Out of the given choices, the amino acids that has a side chain that is capable of hydrogen bonding with other polar molecules is Ser (Serine).

In the fields of organic and biochemistry, a side chain is a chemical group that is connected to the "main chain" or backbone of a molecule and serves as an attachment point for other parts of the molecule. A molecule's side chain is a hydrocarbon branching element that is coupled to a larger hydrocarbon backbone. This element is known as the side chain. There is only one amino acid on this list that possesses a R group that is able to form a hydrogen bond, and that is serine.  Both serine and threonine have hydroxyl groups located on the side chains of their amino acids. Because these polar groups are located so close to the main chain, they are able to make hydrogen bonds with the main chain.

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Dow Chemical, Calvin Klein, and Tommy Hilfiger have all attempted to exert influence over their international suppliers by enforcing a set of moral standards and guidelines to ensure that the suppliers uphold the values and principles of the company.

Minimum wage, no child labor, no forced labor, environmental regulations, and bribery and corruption prohibitions are typically included in these standards and guidelines. Suppliers may also be required to respect workers' rights and labor laws, provide safe and healthy working conditions, and ensure the health and safety of their employees.

These standards and guidelines are intended to guarantee that suppliers adhere to ethical standards and deliver high-quality goods and services to businesses. Both the companies and the suppliers' reputations will be safeguarded as a result of this.

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Answer:

Animals are used in scientific research to help us understand our own bodies and how they work. This is necessary to develop new medicines. Animals are also used to safety test potential medicines before they are tested in people and to check the safety of other chemicals.

Explanation:

Answer:

B. A few elements can combine to form a compound

Explanation:

Source:  Tro Nivaldo J.. Principles of Chemistry (p. G-4). Pearson Education. Kindle Edition.

Answer:

.A few elements can combine to form a compound

Explanation:

The correct answer is "decendent." Embalming authorization may be given by the bailee, next of kin, or spouse, but not by the decedent.

The term "decedent" refers to the person who has died; they are unable to give consent for embalming or any other post-mortem procedures. According to legal and cultural customs, the choice to embalm is often taken by the designated representative, such as the bailee (person in charge of the body), next of kin, or spouse.

Hence, embalming authorization may be given by the bailee, next of kin, or spouse, but not by the decedent.

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The equilibrium concentration of PCl5 will increase PCl3 is added.

A reversible reaction is said to be in equilibrium when the rates of the forward and the backward reaction are equal.

According to a law of reaction, when a reaction is in equilibrium and one of the constraints that affect the rate of reaction is applied, the equilibrium will shift so as to annul the effects of the constraint introduced.

Thus, in this case, in order for more PCl5 (a reactant) to be formed, PCl3 (a product) would have to be added.

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Answer:

0.029 g/mL or 0.5 M

Explanation:

The concentration in g/mL is:

As for calculating the molar concentration, first we convert 14.61 g of NaCl to moles, using its molar mass:

Then we divide the number of moles by the volume in liters:

Digital waves are commonly used in high-frequency wireless networks instead of analog waves because digital signals are less susceptible to interference from obstacles and noise.

Analog signals vary continuously over time and can be affected by various forms of interference, such as distortion or attenuation, which can result in the loss or corruption of information.

In contrast, digital signals are represented as a series of discrete values or binary digits, which are more resilient to interference and can be easily reconstructed at the receiving end. Digital signals are also easier to compress, allowing for more efficient use of the available bandwidth and higher data transfer rates.

Therefore, digital signals are the preferred choice for high-frequency wireless networks as they provide reliable, high-speed data transmission while minimizing the impact of interference and signal loss caused by obstacles.

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Note : The search engine could not find the complete questions.

\([Zn^+^2] [Sn^+^2]\) is the most plausible source of this deviation. This is because neither the reaction quotient Q nor the conventional equilibrium constant K are equivalent under the present conditions of the reaction. Standard cell potential (E°), real cell potential (E), gas constant (R), temperature (T), Faraday constant (F), and reaction quotient (Q) are all related by the following formula:

E = E° - (RT/nF) ln Q

Q must be greater than K because E is greater than E°. The reaction quotient Q can be calculated by:

Q = [Sn]/[Zn + 2]

The measured voltage will be greater than the normal cell potential if [Zn+2] [Sn+2] and Q > K.

So, the correct option is C.

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Your question is incomplete, most probably the complete question is:

Sn2+ (aq) + Zn (s) → Sn (s) + Zn+2 (aq)

A galvanic cell was constructed using tin and zinc half cells. The voltage produced was measured to be 0.66 V at 25°C. However, the standard cell potential for this reaction is 0.62 V. Which of the following statements is the most likely source of this deviation?

(A) The salt bridge contained Na2SO4.

(B) SO42 was the anion at the anode and Cl was the anion at the cathode. (C) [Zn+2] < [Sn+2]

(D) The anode has a larger mass than the cathode.

(E) The volume of the Sn2 solution is greater than the volume of the Zn+2 solution.

As per the given data, 1.6 grams of oxygen reacted in this experiment.

To calculate the amount of oxygen that reacted in the experiment, we need to determine the difference in the mass of X oxide (X,O) formed and the mass of X initially used.

Given:

Mass of X = 4.6 g

Mass of X oxide (X,O) = 6.2 g

To find the amount of oxygen that reacted:

Mass of oxygen = Mass of X oxide - Mass of X

= 6.2 g - 4.6 g

= 1.6 g

Therefore, 1.6 grams of oxygen reacted in this experiment.

Calculate the mass of 1 mole of X:

Given that the mass of X is 4.6 g, we can calculate the molar mass of X by dividing the mass by the number of moles:

Molar mass of X = Mass of X / Number of moles of X

Molar mass of X = 4.6 g / 0.1 mol

Molar mass of X = 46 g/mol

Therefore, the mass of 1 mole of X is 46 grams.

Thus, the answer is 46 grams.

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Answer:B) The Skin and The Skin cells

Explanation:

Hope this helped

1.69 g Mg₃N₂

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Atomic Structure

Stoichiometry

Step 1: Define

[RxN - Unbalanced] Mg + N₂ → Mg₃N₂

[RxN - Balanced] 3Mg + N₂ → Mg₃N₂

[Given] 1.22 g Mg

[Solve] grams Mg₃N₂

Step 2: Identify Conversions

[RxN] 3 mol Mg → Mg₃N₂

[PT] Molar Mass of Mg - 24.31 g/mol

[PT] Molar Mass of N - 14.01 g/mol

Molar Mass of Mg₃N₂ - 3(24.31) + 2(14.01) = 100.95 g/mol

Step 3: Stoich

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

1.68873 g Mg₃N₂ ≈ 1.69 g Mg₃N₂

To dilute the Kool-Aid solution to a concentration of 2.00 M, we need to calculate the volume of water (Vw) that needs to be added.

The initial concentration of Kool-Aid solution is 13.2 M, and the initial volume is 0.512 L. Let's assume that Vw is the volume of water we need to add to dilute the solution to a concentration of 2.00 M.

Since the total volume after dilution will be the sum of the initial volume of Kool-Aid solution and the volume of water added, we can set up the following equation based on the dilution formula:

C1V1 = C2V2

where

C1 = initial concentration of Kool-Aid solution = 13.2 M

V1 = initial volume of Kool-Aid solution = 0.512 L

C2 = final concentration of Kool-Aid solution = 2.00 M

V2 = final volume of Kool-Aid solution after adding water = 0.512 L + Vw

Substituting the given values into the equation, we get:

13.2 M x 0.512 L = 2.00 M x (0.512 L + Vw)

Simplifying the equation, we get:

6.7584 L·M = 1.024 L·M + 2.00 M·Vw

Subtracting 1.024 L·M from both sides, we get:

5.7344 L·M = 2.00 M·Vw

Dividing both sides by 2.00 M, we get:

Vw = 2.8672 L

Therefore, we need to add 2.8672 L of water to 0.512 L of 13.2 M Kool-Aid solution to dilute it to a concentration of 2.00 M.

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The energy, in joules per mole (J/mol), of a photon in the microwave region of the EM spectrum is 5.81 x 10-3 J/mol (3 significant figures).

Energy is the capacity for doing work. It can take many forms, including kinetic energy (the energy of moving objects), potential energy (stored energy in an object due to its position or composition), thermal energy (heat), light, and electrical energy.

The energy carried by a single photon is equal to the product of Planck's constant (h) and the frequency (f) of the photon.
Therefore, the energy carried by a single photon in the microwave region of the EM spectrum, with a frequency of 5.25 x 1010 s-1, is:
E = h x f
 = (6.63 x 10-34 J.s) x (5.25 x 1010 s-1)
 = 3.48 x 10-23 J
The energy per mole of photons is then equal to:
E/mol = (3.48 x 10-23 J) / (6.02 x 1023 photons/mol)
= 5.81 x 10-3 J/mol
Therefore, the energy, in joules per mole (J/mol), of a photon in the microwave region of the EM spectrum is 5.81 x 10-3 J/mol (3 significant figures).

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a) If the partial pressure of CO2 is increased, the equilibrium will tend to shift towards the formation of products (C6H12O6 and O2) to reduce the concentration of CO2.

(b) If the system is compressed, the equilibrium will tend to shift towards the formation of products (C6H12O6 and O2) to reduce the number of gas molecules.

What is Equilibrium?

In chemistry, equilibrium is a state in a chemical reaction where the rate of the forward reaction is equal to the rate of the reverse reaction. At equilibrium, the concentrations of the reactants and products remain constant over time, although the reactants are still being converted into products and vice versa.

When a system is at equilibrium, the concentrations of reactants and products are said to be in balance. This means that the concentrations of the reactants and products are no longer changing, even though the reaction is still ongoing. At equilibrium, the concentrations of reactants and products are related by a constant called the equilibrium constant (K), which depends on the specific reaction conditions such as temperature and pressure.

c) If the amount of H2O is increased, the equilibrium will tend to shift towards the formation of products (C6H12O6 and O2) to consume the excess water.

(d) If the temperature is increased, the equilibrium will tend to shift towards the formation of products (C6H12O6 and O2) because the reaction is endothermic and increasing the temperature favors the endothermic reaction.

(e) If some of the O2 is removed, the equilibrium will tend to shift towards the formation of products (C6H12O6 and O2) to compensate for the loss of O2.

(f) If water is added, the equilibrium will tend to shift towards the formation of reactants (CO2 and H2O) to consume the excess water.

(g) If the partial pressure of O2 is decreased, the equilibrium will tend to shift towards the formation of reactants (CO2 and H2O) to compensate for the loss of O2.

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From the calculations that have been done, there are 3 drinks.

The information that we have been provided here is very important. We can obtain the amount of alcohol by looking at the fact that it contains  80-proof liquor.

This 80-proof liquor. is an equivalent of 40% alcohol this means that there is 1.5 ounce of distilled spirit.

Thus, the number of drinks there is;

4.5/1.5 = 3

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Answer:Condensation

Evaporation

melting

ionization

Explanation:

Hope this helps :)

From a gas to a liquid: This is called condensation ; From a liquid to a gas: This is called evaporation or vaporization ; From a solid to a liquid: This is called melting ; From a gas to a plasma: This is called ionization.

Process by which water vapor in air is changed into liquid water is called condensation.

From a gas to a liquid: This is called condensation. It occurs when gas loses heat energy and particles start to slow down and move closer together, eventually forming liquid.

From liquid to a gas: This is called evaporation or vaporization. It occurs when liquid gains enough energy to break the intermolecular forces between the particles, causing them to become gas.

From a solid to liquid: This is called melting. It occurs when solid absorbs enough energy to overcome the intermolecular forces holding its particles together, causing particles to move more rapidly and become liquid.

From a gas to a plasma: This is called ionization. It occurs when gas is subjected to strong electric field, heat, or radiation and some or all of atoms or molecules lose their electrons, creating positively charged ions and negatively charged electrons. This mixture of charged particles is called plasma.

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The theoretical yield of I2 in the reaction would be 0.23 g

This refers to the stoichiometric yield of a reaction.

From the equation of the reaction:

Ca(IO3)2 + 10 KI + 12 HCl → 6 I2 + CaCl2 + 10 KCl + 6 H2O

The mole ratio of Ca(IO3)2 and I2 is 1: 6

Mole of 15.00 mL, 0.0100 M Ca(IO3)2 = 15/1000 x 0.0100

                                                              = 0.00015 mole

Equivalent mole of I2 = 0.00015 x 6

                                      = 0.009 mole

mass of 0.0009 I2 = 0.0009 x 253.809

                                = 0.23 g

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Answer:

Chemical changes in compounds happen when chemical bonds are created or destroyed. Then the molecular structure changes; new molecules form and a new substance is created. Often heat is used to begin a chemical change, as when baking a cake. Another example of a chemical reaction is the rusting of a metal trash can.

An element is constituted of only atoms and no other entities are present in it. Whereas a chemical compound is a substance made up of various identical molecules of the same or different atoms.

The atoms of the same or different species bond together to form a compound.

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Answer: A. 212

Explanation:

Answer:

Three

Explanation:

Iron  

Oxygen  

Hydrogen