In an experiment, you measure the temperature change of water to study the specific heat of a metal. What statement explains the relationship between the water and the metal you are studying?.

If the bromobenzene is added too quickly, biphenyl is formed as the side product with the Grignard reagent.

What is Grignard reagent?

Grignard reagent is an organomagnesium halide which has the formula RMgX where R is alkyl or aryl group, Mg is magnesium, X is an halide.

When bromobenzene is added too quickly to the Grignard reagent, biphenyl is formed as a by-product. the formation of the side product is enhanced by high temperature. So, this reaction is carried out in low temperature.

Therefore, biphenyl is formed as side product when bromobenzene is added quickly to the Grignard reagent. The structure of biphenyl is two benzene rings joined together.

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Answer:

composition of N₂S₂, you divide the total mass of each atom by the molecular mass and multiply by 100 %. Mass of 2 N atoms = 2 N atoms × 14.01u1N atom = 28.02 u.

Answer:

don't know

Explanation:

Thanks❤ have a nice day

Answer:

Liquid

Explanation:

Octane is a straight chain alkane composed of 8 carbon atoms. It has a role as a xenobiotic. N-octane is a colorless liquid with an odor of gasoline.

Answer:

Explanation:

A solution of zinc metal and lead nitrate react to form zinc nitrate and lead metal.

Zn(s) + Pb(NO3)2 = Zn(NO3)2 + Pb

Assertion is correct, but reason is wrong statement(d) is a statement of assertion followed by a statement of reason.

The assertion that sodium alginate is insoluble in water is correct. However, the reason given that ionic salts are soluble in water is not a correct explanation.

While most ionic salts are indeed soluble in water, there are exceptions such as insoluble ionic salts that do not dissolve in water. Sodium alginate is one such exception. It is a salt of alginic acid, which is a polysaccharide, and the sodium ions are not easily dissociated in water. Hence, sodium alginate is insoluble in water.

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The number of moles in container 2 is 33.3moles when the container has 27.32L of gas inside it

The number of moles of gas in container 2 can be calculated using the Ideal Gas Law:  

n = PV/RT  

where n is the number of moles of the gas with known volume,

P is the pressure (assumed to be 1 atm for ideal gases),

V is the volume (27.32 liters),

R is the ideal gas constant (0.0821 L·atm/mol·K) and

T is the temperature (assumed to be 273.15 K).  

Plugging in the values, we get:  

n = (1 atm)(27.32 L)/(0.0821 L·atm/mol·K)(273.15 K)

n = 33.3 mol  

Therefore, there are 33.3 moles of gas in container 2.

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The correct answer is:

c. Cl is oxidized, Zn is reduced.

In the given reaction:

Zn(s) + Cl2(g) → ZnCl2(s)

Zinc (Zn) is being oxidized, and chlorine (Cl) is being reduced.

Oxidation refers to the loss of electrons, while reduction refers to the gain of electrons.

In this reaction, the zinc (Zn) atoms in the solid state (s) are oxidized. They lose two electrons each to form Zn²⁺ ions in the ZnCl₂ compound. Zinc is going from an oxidation state of 0 to +2, indicating oxidation.

On the other hand, the chlorine (Cl) molecules in the gaseous state (g) are being reduced. Each chlorine molecule gains two electrons to form chloride ions (Cl⁻) in the ZnCl₂ compound. Chlorine is going from an oxidation state of 0 to -1, indicating reduction.

Therefore, the correct answer is:

c. Cl is oxidized, Zn is reduced.

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Active series ions with the highest reactivity among metals.

The simplicity of chemical reactions is the main difference between metals. The most active metals in terms of reactivity are those in the lower left corner of the periodic table. For example, water reacts with lithium, sodium and potassium. However, as you move down this pillar, the more metallic the elements become, the more reactive they become, thus accelerating the rate of this reaction.

The order in which metals are arranged in descending order of reactivity is called the reaction sequence or activity sequence of metals.

The list of active or electromotive series metals is arranged in order of increasing reactivity with hydrogen ion sources such as water and acids.

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Answer:

I believe the answer is A (changes in air temperature  result in differences in air pressure which causes wind). Hope this helps

Explanation:

Answer:

D

Explanation:

The net ionic reaction for each of the reaction is

a) \(3Pb^{2+} + 6Cl^----- > 3PbCl{2}\)

b) \(3Sr^{2+} + 2PO_{4} ^{3-} ---- > Sr_{3}( PO_{4}) _{2}\)

c) \(2Ag^+ + 2I^- --- > 2AgI\)

d) \(Cu^+ + CO_{3} ^{2-} ----- > Cu_{2} CO_{3}\)

We have to note that if we talk about the net reaction equation, we can be able to talk about the final ionic reaction after we have removed the spectator ions. Note that when we speak of the spectator ions, we mean the ions that do not take part in the reaction.

In this case, we have been give the precipitate in each of the reactions and we can use the formula of the precipitate to be able to deduce the net ionic reaction that took place.

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To be defined as a mineral, an object must meet the following requirements: it must be made in nature, it must be solid, it must have a specific crystalline lattice, it must have a distinct chemical composition, and it must be inorganic. The correct option is (f) all of the above.

A mineral is a naturally occurring inorganic solid with a specific chemical composition and a crystalline structure. Minerals are the building blocks of rocks and are classified based on their physical and chemical properties.

For an object to be considered a mineral, it needs to fulfill several criteria. First, it must occur naturally and not be artificially created. Second, it must exist in a solid state, as minerals are not liquids or gases. Third, it must possess a specific arrangement of atoms in a crystalline lattice structure. This means that the atoms are ordered and repeated in a regular pattern. Fourth, it must have a well-defined chemical composition, consisting of specific elements in fixed proportions. Lastly, minerals must be inorganic, meaning they are not derived from living organisms or their byproducts. By meeting all these requirements, an object can be classified as a mineral.

The correct option is (f) all of the above.

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Answer:

c

Explanation:

Soil, Plants get energy from the sun.. Answer is C.

Answer:

B. trees

Explanation:

A biotic factor is something in an environment or ecosystem that is living. For example, plants and animals are biotic factors. An abiotic factor is just the opposite-they are not living. Rocks and water are examples of abiotic factors.

Soil composition, temperature and sunlight are all not alive. Therefore, they must be abiotic factors.

Trees are living organism. This means that they are biotic factors. So, the correct answer is B: trees.

The combinations that will not serve as buffers when equal volumes of 0.20m solutions are mixed are:

4.HNO₃/KNO₄

A buffer solution is a solution that can a withstand a change in its pH when small quantities of a strong acid or base are added to it. Buffers are important in biological systems, where pH changes can be harmful or even deadly to living organisms.

The definition of a buffer system: A buffer system is made up of an acid and its salt (conjugate base), or a base and its salt (conjugate acid).The concentrations of acid and salt in a buffer solution are generally similar, as this increases the buffer's effectiveness. When an acid is added to a buffer solution, the conjugate base of the buffer consumes the added H⁺ ions. The pH of the buffer solution is not affected because the conjugate base is a weak base that does not significantly affect the pH. When a base is added to a buffer solution, the conjugate acid of the buffer consumes the added OH⁻ ions, effectively neutralizing them and preventing any significant increase in pH.

Buffers are used in many chemical, biological, and biochemical experiments to maintain a steady pH, and they are critical in many biological systems, particularly in the human body.

For example, blood contains a variety of buffer systems that help to maintain the pH of the blood within a narrow range, ensuring that the body's biochemical processes can function properly.

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The compound that is composed of calcium and chlorine is CaCl₂

To know which of the compound that contains calcium and chlorine, we must know the symbol of calcium and chlorine. This is shown below:

Calcium is a group 2 element with atomic number of 20 and a symbol of Ca

Chlorine is a group 17 element with atomic number of 17 and a symbol of Cl

With the above information, we can determine the compound that contains calcium and chlorine as follow:

The compound that contains calcium and chlorine must have Ca and Cl in it.

Thus, the compound that contains calcium and chlorine is CaCl₂

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Answer:

For metals it takes a lot less energy to loose 2 electrons then to gain 6. For nonmetals it is easier to gain 2 electrons then to loose 6.

Youre're welcome <3

Answer:

In a turbine generator, a moving fluid—water, steam, combustion gases, or air—pushes a series of blades mounted on a rotor shaft. The force of the fluid on the blades spins/rotates the rotor shaft of a generator. The generator, in turn, converts the mechanical (kinetic) energy of the rotor to electrical energy.

Explanation:

Hope this helps!

Brain-List?

Answer:

both are true

Explanation:

Answer:

Ba

Explanation:

Atomic radius increases going right to left, and up to down.

So the closest element to the bottom left corner is Ba.

Option A is correct way of representation of electronic configuration.

n = m / M

m = n × M

Nitrogen (N2) - a gas is always with an index 2 if we don't have shown how many molecules are there

m (N2) = 4,5 mol × (2×14.007 g/mol)

m (N2) = 4,5 mol × 28.014 g/mol = 126.063g

if you don't solve with the decimals in class just replace 14.007 with 14

also if you haven't learned abour gasses aways having index 2 then:

m (N2) = 4,5 mol × 14.007 g/mol = 63.0315g

Answer:

0.56M es la concentración de la solución restante

Explanation:

La molaridad de una solución es una unidad de concentración definida como la relación entre las moles de soluto (En este caso, dicromato de potasio) y el volumen de la solución.

Sabiendo que para el ion dicromato:

6M = 1N

La normalidad del ion dicromato se obtiene dividiendo entre 6 su molaridad.

Moles de dicromato en las dos soluciones son:

1. 0.250L × (1.24mol / L) = 0.310 moles de dicromato

2. 0.380L × (0.65eq / L) × (1eq / 6mol) = 0.042 moles de dicromato

Así, las moles totales de dicromato de potasio son:

0.310moles + 0.042 moles = 0.352 moles de dicromato

En un volumen de 250mL + 380mL = 630mL = 0.630L

La molaridad de la solución es:

0.352 moles / 0.630L =

When atoms or molecules absorb energy, it is often released as light energy

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Answer:

Sorry for the late answer, but it should be A. Carbon's outermost shell can form up to 4 covalent bonds. It's one of the reasons why Carbon is considered an "essential element".

Answer:

2.9 * 10^23 atoms Au

Explanation:

(95 g Au) * (1 mol Au/196.96657) * (6.02 * 10^23 atoms Au / 1 Mol Au)

2.9 * 10^23 atoms Au

Answer:

A)ff

Explanation:

its A bc, how you would write a dominate trait for having freckles is FF and how you would write a ressive(cant spell that word sorry) trait for having freckles is ff. if Andrew does not have freckles then he is a ressive, ff. and also my teacher told me that u always write a dominate trait before a ressive trait unless u r doing a tri hybrid cross or something else.

According to the nurse preceptor, the new nurse adheres to a number of safe practices while administering red blood cells (RBCs) to a patient.

Based on the given options, the actions that are deemed safe by the nurse preceptor are:

Using large gauge catheters (20-24 gauge). When giving red blood cells (RBCs) to a patient, the novice nurse follows a number of safe procedures, according to the nurse preceptor. To ensure appropriate flushing and lower the chance of an air embolism, the inexperienced nurse correctly primes the intravenous tube with 0.9% sodium chloride in the first step. The second step is for the inexperienced nurse to collect and record a complete set of baseline vital signs. This creates a baseline for monitoring the client's status both before and after the transfusion. Third, in accordance with the advised duration for safe administration, the nurse modifies the infusion rate to administer the RBCs in 4 hours as opposed to 6 hours. Fourth, the inexperienced nurse employs big gauge catheters (20-24 gauge) to promote quick and smooth blood product flow and reduce problems.

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During cross-bridge cycling in muscle contraction, when Ca²⁺ remains present in the cytosol, the step that happens immediately after the energizing of the cross-bridge is the binding of myosin to actin.

In muscle physiology, a cross-bridge refers to the temporary attachment formed between the myosin head of a thick filament and an actin molecule of a thin filament during muscle contraction. The cross-bridge cycle is a repetitive process that occurs within sarcomeres, the functional units of muscle fibers.

The cross-bridge cycle involves the interaction between actin and myosin, two proteins found in muscle cells.

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