Which statements correctly describe and provide evidence for the double replacement reaction?

Answer:

1. Rinse with distilled water.

2. Avoid dropping it

3. Use a stopper and fill with water and shake

4. Dry

Answer:

Hi, there!

The list of materials you can use for the doghouse roof is below. Can you sort them based on their physical properties?

The Answer Is Oak, Clay, Concrete, Slate UwU

xXxAnimexXx

Have a great day!

Answer:

The Answer Is Oak, Clay, Concrete, Slate

Hope this Helps you!

When a chocolate bar is solid, it is able to smell it.  It is also important to note that a substance 's molecules cannot be in two distinct phases at the a time.

In general, it is not possible for a the molecules of the chocolate  to be in two distinct phases at the same time.

It must be noted that smelling a solid, such as a chocolate bar, however, mean  the release  of loose molecules from the solid,   which may then move   through the air and   reach our olfactory receptors in our nose, allowing us to sense the fragrance.

Learn more about phase transition:
https://brainly.com/question/29795670
#SPJ1

Answer:

increase answer

Explanation:

i hope that is right

The factor that  doesn’t change the resistance of a wire is pressure. option A.

Resistance is a conductor's capacity to thwart the passage of current. It is controlled by the interplay of the applied voltage and the electric current passing through it. The amount of opposition any object applies to the flow of electric current is referred to as resistance.

The ohm, a unit of measurement for resistance, is represented by the Greek letter omega. According to Ohm's law, the voltage across two places is precisely proportional to the current flowing through a conductor between them.

Hence option A is correct.

Learn more about resistance at

https://brainly.com/question/17563681

#SPJ1

missing part;

The pressure

The length of the resistor.

The thickness of the resistor.

The temperature of the conductor.

Answer:

the boiling point of solution at 3 decimal point is 100.329०C Ans.

Explanation:

given data -

molality of Nacl = 0.321 m

molal boiling point elevation constant (Kb) =0.512०C/m

# formula of change of boiling point of sample =

∆ Tb =i × Kb × m

Kb = molal boiling point of elevation constant

m = molality

i = vont's hoff factor.

Nacl is strong electrolyte and its 100% dissociate so the value of i for Nacl is 2

put value in the formula

∆ Tb = 2 × 0.512 ०C/m × 0.321m

= 0.3287

= 0.329०C

∆Tb = T'b - Tb

T'b = boiling point of solution

Tb= boiling point of solvent( water)

0.329०C = T'b - 100०c ( boiling point of water = 100०C)

T'b = 0.329०C + 100०C

= 100.329०C

hope this helps

The process of cellular respiration releases energy because the energy that is released when the bonds are formed in CO\(_2\) and water is equal to the energy required to break the bonds of sugar and oxygen. Therefore, the correct option is option A.

Cells turn sugars into energy through a process called cellular respiration. Cells need fuel or an electron acceptor to power the chemical process that converts energy into usable forms such as ATP along with additional kinds of energy that can be utilised to power cellular reactions.

All multicellular species, including eukaryotes, as well as certain single-celled organisms, generate energy by aerobic respiration. Utilising oxygen, which is the strongest electron acceptor found in nature, is called aerobic respiration. The process of cellular respiration releases energy because the energy that is released when the bonds are formed in CO\(_2\) and water is equal to the energy required to break the bonds of sugar and oxygen.

Therefore, the correct option is option A.

To know more about Cellular respiration, here:

https://brainly.com/question/31342305

#SPJ1

Answer:

I believe that would be 100 mph.

Explanation:

Your distance (d) is 500 miles and your time (t) is 5 hours.

So when you replace the variables with numbers you bet 500/5 which is 100.

Therefore, you speed (S) would be 100mph.

Answer:

c. nitrogen gas

Explanation:

Our air is a homogeneous mixture of many different gases and therefore qualifies as a solution. Approximately 78% of the atmosphere is nitrogen, making it the solvent for this solution.

A double bond connecting a carbonyl carbon and an oxygenyl carbon forms a carbonyl group.

A carbon atom is double-bonded to an oxygen atom to form the chemically organic functional group known as a carbonyl group. [C=O] Aldehydes and ketones are the most basic carbonyl groups, and they are typically joined to another carbon molecule. Many aromatic compounds have these structures, which contribute to flavor and fragrance. A functional group called the carbonyl group has a carbon atom double-bonded to an oxygen atom, or C=O. Another meaning of the word "carbonyl" is a metal-bound, neutral carbon monoxide ligand. Tetracarbonyl nickel, or Ni(CO)4, is one illustration. A double bond connecting a carbonyl carbon and an oxygenyl carbon forms a carbonyl group. Two of the carbonyl oxygen's six valence electrons are shared with the carbonyl carbon atom. Two sets of electron lone pairs make up the remaining four valence electrons.

Learn more about carbonyl here :

https://brainly.com/question/21440134

#SPJ4

Lead will have the highest temperature .

What is Specific Heat ?

Specific Heat is defined as the amount of heat required to raise the temperature of a 1 gm of substance by 1 degree Celsius.

If heat is added to 25.0g of copper, calcium, aluminum, iron, lead

The missing given specific heat is

Copper, 0.377

Calcium, 0.656

Aluminum, 0.895

Iron, 0.448

Lead, 0.129

Higher specific heat means more temperature required to bring the same amount of change in temperature

Here the temperature change is fixed , The metal with the lowest Specific heat will have the highest temperature.

From the data it can be seen that

Specific Heat of Lead, 0.129

Therefore Lead will have the highest temperature.

To know more about Specific Heat

https://brainly.com/question/11297584

#SPJ1

The number of the atoms of oxygen that we have is 3.97 * 10^21 atoms.

Mole is a unit of measurement used to quantify the amount of a substance. It is a fundamental concept in the field of chemistry and plays a crucial role in stoichiometry, which is the study of the quantitative relationships between substances involved in chemical reactions.

We have to note that we have 0.2 g of the aspirin and the number of moles of the aspirin would be given as;

Moles = 0.2 g/180 g/mol

= 0.0011 moles

Then we have that the number of the atoms of oxygen is;

6 * 0.0011 * 6.02 * 10^23

= 3.97 * 10^21 atoms

Learn more about moles:https://brainly.com/question/30885025

#SPJ1

The measure of the length of events and the duration of intervals between events is time.

The duration of events or the gaps between them can be measured, compared, or even ordered using time. The lengthy period of time that the Earth's geologic history takes up is known as geologic time. Starting at the beginning of the Archean Eon  formal geologic time runs until the present. Geology is defined as the "Science of the Earth."

Geology is the fundamental Earth science that examines how the earth created, its structure and composition, and the various forces acting on it. It is sometimes known as geoscience or earth science.

Learn more about time  at;

https://brainly.com/question/479532

#SPJ1

Answer:

Direct a magnet towards the mixture of iron and sand. You can observe that only the iron filling is attracted to the magnet and will come in contact with it. Therefore, after this process, you'll be left with iron filling on the surface of the magnet whereas the sand particles are left on the dish

To separate a mixture of iron filings and sand, using the physical property of iron is by using a magnet because a magnet attracts iron, but not sand.

Physical properties are those properties that can be seen by seeing an object or a substance. These properties do not change with the change in the composition of matter.

Physical properties are appearance, texture, color, odor, melting point, boiling point, density, solubility, polarity, and many others.

Magnetic properties are the property in which the object attracts to magnets and or iron-containing substances, here it can be used to separate sand and iron.

Thus, using a magnet and the magnetic property of iron—which attracts iron but not sand—one can separate a combination of iron filings and sand.

To learn more about physical properties, refer to the link:

https://brainly.com/question/18327661

#SPJ2

The total number of moles of electrons lost by Mg(s) when 2.0 moles of electrons are gained by Ni2+(ag) is also 2.0 moles of electrons.

This is because in a chemical equation, the number of moles of electrons gained by the reducing agent (in this case Ni2+) is equal to the number of moles of electrons lost by the oxidizing agent (in this case Mg(s)).

In this redox reaction, Mg is being oxidized because it loses electrons and Ni is being reduced because it gains electrons. The oxidation and reduction process are occurring simultaneously, so the number of electrons lost by Mg(s) is equal to the number of electrons gained by Ni2+(ag).

Learn more about moles of electrons in brainly.com/question/512038

#SPJ1

The electrons that are gained by the \(Ni^{2+}\) ion is 2.0 moles of electrons.

We know that when there is a redox reaction, there would be the loss or gain of electrons in the process. The process is a simultaneous one so the electrons that are lost by one specie must as a matter of necessity be gained by another specie.

In this case, as we look at the reaction equation we can see that there are two electrons that have been lost by the magnesium atom and these two electrons would be gained by the Nickel II ion.

Learn more about redox reaction:https://brainly.com/question/13293425

#SPJ1

Solid potassium (K) conducts an electric current, whereas solid potassium iodide (KI) does not because solid potassium has a delocalized sea of electrons and KI has its cations and anions.

Positively charged potassium and negatively charged iodine combine to form the straightforward inorganic ionic chemical potassium iodide. It is solid at room temperature and resembles sodium chloride or table salt in terms of crystalline structure.

The major uses of potassium iodide are to treat hyperthyroidism and as a dietary supplement for those who are iodine deficient. Additionally, it is utilized as an expectorant to treat asthma and other long-term respiratory disorders, as well as to shield the thyroid gland from radiation.

When potassium iodide is dissolved in water, it splits into cations and anions, enabling free electron movement across the solution. It does not conduct electricity when it is in a dry crystal state, though, like other ionic compounds.

To know more about potassium iodide, visit:

https://brainly.com/question/12050170

#SPJ13

The amount of volume of KOH solution that should be added to make 500mL of a 0.300M solution is 200mL.

The volume of a solution given the concentration can be calculated using the following expression;

CaVa = CbVb

Where;

According to this question, we are to calculate how many mL of a 0.75 M OH solution that should be added to a 500 mL flask to make 500 mL of a 0.300 M KOH solution.

0.75 × Va = 500 × 0.3

0.75Va = 150

Va = 150/0.75

Va = 200mL

Learn more about volume at: https://brainly.com/question/14710169

#SPJ1

The enthalpy of fusion of sodium acetate is approximately -93.64 J/g.

To calculate the enthalpy of fusion (ΔH) of sodium acetate, we can use the principle of energy conservation. The heat lost by the hand warmer during the crystallization process is equal to the heat gained by the water in the calorimeter.

First, let's calculate the heat gained by the water in the calorimeter using the formula q = m × c × ΔT, where q is the heat gained or lost, m is the mass of the water, c is the specific heat capacity of water, and ΔT is the change in temperature.

q_water = m_water × c_water × ΔT_water

Given:

m_water = 600 g

c_water = 4.18 J/g-°C

ΔT_water = 36.4°C - 25°C = 11.4°C

q_water = 600 g × 4.18 J/g-°C × 11.4°C

q_water = 28092 J

Since the heat lost by the hand warmer during crystallization is equal to the heat gained by the water, we can write:

q_water = q_handwarmer

Now, let's calculate the heat lost by the hand warmer using the same formula:

q_handwarmer = m_handwarmer × c_handwarmer × ΔT_handwarmer

Given:

m_handwarmer = 300 g

c_handwarmer = unknown (specific heat capacity of sodium acetate)

ΔT_handwarmer = 36.4°C - initial temperature of sodium acetate

Since the sodium acetate undergoes crystallization, its temperature remains constant during this phase change. The temperature at which crystallization occurs is known as the freezing point of sodium acetate, which is approximately 58°C. Therefore:

ΔT_handwarmer = 36.4°C - 58°C = -21.6°C

Now, we can substitute the known values into the equation:

q_water = q_handwarmer

28092 J = 300 g × c_handwarmer × -21.6°C

To solve for c_handwarmer, we rearrange the equation:

c_handwarmer = -28092 J / (300 g × -21.6°C)

c_handwarmer ≈ 5.47 J/g-°C

The specific heat capacity of sodium acetate (c_handwarmer) is approximately 5.47 J/g-°C.

The enthalpy of fusion (ΔH) can be calculated using the equation ΔH = q_handwarmer / m_handwarmer:

ΔH = -28092 J / 300 g

ΔH ≈ -93.64 J/g

For more such questions on fusion visit:

https://brainly.com/question/3992688

#SPJ8

According to this question, we must know that everything related to grams, means a mass of something.

So, we cannot use grams (g) or kilograms (kg) as a unit of volume.

For volume, we use liters (L), milliliters (mL), and cm^3 as we see on the written question. Also, we have plenty of units for volume in different systems used to measure.

Answer: milliliters (mL) or centimeters cubic (cm^3)

Answer: an atom

Explanation: he smallest particle of an element that still has the element's properties is an atom. All the atoms of an element are alike, and they are different from the atoms of all other elements. For example, atoms of gold are the same whether they are found in a gold nugget or a gold ring

Answer:

0.200 M

Explanation:

Begin by finding how many moles of KCl there are by using the molarity and given volume:

\(\frac{0.600 mol}{1000 mL} x \frac{200.0 mL}{1} = 0.12 mol KCl\)

(Remember that molarity is mol/L, which is equal to mol/1000 mL.)

Next, divide the moles of KCl by the new volume (after dilution):

\(\frac{0.12 mol KCl}{600.0 mL} x \frac{1000 mL}{1 L} = \frac{0.200 mol KCl}{1 L} = 0.200 M\)

The new concentration is 0.200 M.

The new concentration of the KCL solution is 0.200M

HOW TO CALCULATE CONCENTRATION:

C1V1 = C2V2

Where;

C1 = initial concentration of the solution

C2 = final concentration of the solution

V1 = initial volume of the solution

V2 = final volume of the solution

V1 = 200mL

V2 = 600mL

C1 = 0.600 M

C2 = ?

C2 = C1V1 ÷ V2

C2 = (0.600 × 200) ÷ 600

C2 = 120 ÷ 600

C2 = 0.2M

Learn more: https://brainly.com/question/4401006?referrer=searchResults

The answer choice that best describes this is  C. Peter's brain still received messages from his other sensory receptors, which his brain combined with stored memories in order to move through the darkness.

Here, the sensory organs in Peter's eyes, ears, nose, mouth, and internal organs are specialized organs that allow each receptor type to convey a different sensory modality to eventually integrate into a single perceptual frame.

As a result of these sensory organs, Peter will eventually go stuttering when he wakes up in the middle of the night in complete darkness. However, he was able to make his way to the bathroom without bumping into any objects in his path.

Read more about memory here:

https://brainly.com/question/14288553

#SPJ1

Peter woke up in the middle of night in darkness. Without being able to see, he was able to make his way to the bathroom without running into any objects in his path.

Which of the following best describes how he is able to do this?

A. Peter's brain received visual information from sensory receptors other than his eyes, so there was no change in how his body responded to the darkness around him.

B. Peter's brain used only stored memories as input when he moved through the darkness, as all sensory receptors are directly tied to the visual system.

C. Peter's brain still received messages from his other sensory receptors, which his brain combined with stored memories in order to move through the darkness.

D. Peter's brain used only messages received from his other sensory receptors when he moved through the darkness, as the visual system is not an important part of the central nervous system.​

No, these three structures do not represent the same molecule. They all have different arrangements of atoms and functional groups.

Define functional groups ?

Functional groups are specific groups of atoms or bonds within molecules that determine the chemical properties and reactivity of those molecules. They often determine the physical and chemical properties of a molecule, such as its solubility, acidity, and chemical reactions.

(a) Molecular formula: \(C_{13}H_{25}BrO\)

Line structure:

\(CH_3\)

|

\(CH_3-C-CH_2-CH_2-CO-CH_2-CHBr-CH(CH_3)_2\)

|

\(CH_3\)

(b) Molecular formula: \(C_{13}H_{25}BrO\)

Line structure:

\(CH_3\)

|

\(CH_3-C-CH-CH-CH-OH\)

| | |

\(CH_3 Br CH_2CH(CH_3)_2\)

(c) Molecular formula: \(C_{12}H_{23}BrO\)

Line structure:

\(CH_3\)

|

\(CH_3-C-CH-Br\)

|

\(CH_2CH(CH_3)_2-CO-CH_2-CH(CH_3)_2\)

No, these three structures do not represent the same molecule. They all have different arrangements of atoms and functional groups. Although they have the same molecular formula of C13H25BrO, the isomers differ in the way the atoms are connected to each other, leading to different chemical and physical properties.

To learn more about isomers visit the link :

https://brainly.com/question/12796779

#SPJ1