What is a flower that is blue and yellow?

Mixture is the Colloid.

In chemistry, the solution is a unique sort of homogeneous mixture composed of two or more substances. In this kind of aggregate, a solute is a substance dissolved in another substance, called a solvent.

A solution is a homogeneous aggregate of one or more solutes dissolved in a solvent. solvent: the substance wherein a solute dissolves to produce a homogeneous combination. solute: the substance that dissolves in a solvent to produce a homogeneous aggregate.

The formation of a solution from a solute and a solvent is a physical process, no longer a chemical one. substances that might be miscible, inclusive of gases, form a single phase in all proportions.

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Answer:

They both have Rocky cores

Explanation:

ok

The approximate speed of the satellite, expressed to the correct number of significant figures, is approximately 7.6 km/s.

The correct answer is B. 7.6 km/s.

To convert the speed of the satellite from miles per hour to kilometers per second, we need to use the conversion factors provided.

Given:

Speed of the satellite = 17,000 miles/hour

One kilometer = 0.62 mile

One hour = 3,600 seconds

To convert miles to kilometers, we can use the conversion factor:

1 mile = 1.60934 kilometers

To convert hours to seconds, we can use the conversion factor:

1 hour = 3,600 seconds

Now, let's calculate the speed of the satellite in kilometers per second:

Speed in kilometers per hour = 17,000 miles/hour * 1.60934 kilometers/mile = 27,358.78 kilometers/hour

Speed in kilometers per second = (27,358.78 kilometers/hour) / 3,600 seconds/hour ≈ 7.6 kilometers/second

Therefore, the approximate speed of the satellite, expressed to the correct number of significant figures, is approximately 7.6 km/s.

The correct answer is B. 7.6 km/s.

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The resulting value will be in joules (J), representing the amount of heat released during the dissolution of KNO3 in water.To calculate the heat released by the solution, we can use the equation Q = mcΔT, where Q is the heat released, m is the mass of the solution, c is the specific heat capacity of the solution, and ΔT is the change in temperature.

First, we need to calculate the mass of the solution. This can be done by adding the mass of water (275 g) to the mass of KNO3 (26.7 g), giving us a total mass of 301.7 g.

Next, we calculate the change in temperature by subtracting the final temperature (17.70 °C) from the initial temperature (23.00 °C), which gives us ΔT = -5.30 °C (note that the negative sign indicates a decrease in temperature).

Since the specific heat capacity of the resulting solution is assumed to be the same as water (4.184 J/(g·°C)), we can substitute the values into the equation Q = mcΔT. The mass (m) is 301.7 g, the specific heat capacity (c) is 4.184 J/(g·°C), and ΔT is -5.30 °C.

By plugging in these values, we can calculate the heat released by the solution. The resulting value will be in joules (J), representing the amount of heat released during the dissolution of KNO3 in water.

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Mt. Whitney has the second lowest elevation .

Low altitude means any elevation equal to or less than 1219 meters

(4000feet) .

Mt. Whitney is located at the southeastern end of the Sierra Nevada. It is only 85 miles northwest from badwater Basin in death valley,which at 86 meters below at sea level is the lowest point in all North America.

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Answer:

As the name suggests, oxyhaemoglobin is the oxygen bound to haemoglobin and carbamino-haemoglobin is the haemoglobin bound to CO2. Around 20-25% of CO2 is transported as carbamino-haemoglobin back to the lungs, whereas 97% of oxygen is transported as oxyhaemoglobin to the tissues from the lungs.

Explanation:

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The molarity of the base used in the experiment, which was determined based on the recovered NaCl and the volumes of hydrochloric acid and sodium hydroxide, was approximately 1.15 M.

To determine the molarity of the base used in the experiment, we need to use the stoichiometry of the balanced chemical equation and the given data.

The balanced chemical equation for the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH) is:

HCl + NaOH → NaCl + H2O

First, we need to find the number of moles of NaCl produced. We can do this by using the given mass of NaCl (2.22 g) and its molar mass (58.44 g/mol):

moles of NaCl = mass of NaCl / molar mass of NaCl

moles of NaCl = 2.22 g / 58.44 g/mol

moles of NaCl = 0.038 moles

Next, we can use the stoichiometry of the balanced equation to determine the number of moles of NaOH that reacted. Since the mole ratio between NaCl and NaOH is 1:1, the number of moles of NaOH is also 0.038 moles.

Now, we can calculate the molarity of the base (sodium hydroxide) using the given volume of sodium hydroxide solution (0.033 L):

Molarity of NaOH = moles of NaOH / volume of NaOH solution

Molarity of NaOH = 0.038 moles / 0.033 L

Molarity of NaOH ≈ 1.15 M

Therefore, the molarity of the base used in the experiment is approximately 1.15 M.

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Answer: Nuclear fusion is a nuclear reaction where atomic nuclei of a low atomic number fuse to form a heavier nucleus releasing energy.

Explanation:

Explanation:

49.31 + 43.79 = 93.10

finding the percentage of hydrogen in the compound hence 100-93.10 =6.9

therefore 6.9 percent of hydrogen is present in the compound

assuming that the compound is in 100 g so the elements present would be 49.31g of C , 43.79g of O and 6.9g of H

no. of moles of C = given mass÷molar mass

= 49.31 ÷ 12

=4.11 mol

no of moles of O = givem mass ÷molar mass

=43.79÷ 16

=2.73 mol

no. of moles of H =6.9÷1

=6.9 mol

dividing the no. of moles of each element by the least count of the elemnt to get the ratio of the simple whole numbr

therefore

so by dividing we get 1:1:2 of C:O:H

the empirical formula is CH2O

empirical formula mass of CH2O IS

= (12)+(2×1)+(16)

= 12+2+16

=30 G/MOL

n= molar mass of the compound ÷ empirical formula mass of the compound

so, n= 146.1 ÷30

n=5

molecular formula = n×empirical formula

molecular formula= 5×CH2O

molecular formula=C5H10O5 (ribose is the compound)

The ionization potential of Ba(OH)2 was found to be 8±1 eV, with a value of 6±1 eV for the monohydroxide.

Answer: it’s the bottom 2

Explanation: I just took the test and was able to see the answer. :)

Answer:

Chemistry makes no sense. See below for answer.

Explanation:

Answer:NH4, because nitrogen needs four electrons, and each hydrogen needs one electron.

Explanation:

Answer:

Touch, or contact, thermometers must touch the body in order to measure temperature. Remote, or no-contact, thermometers can measure body temperature without touching the skin.

Explanation:

hope this helps

Answer:

Products have less potential energy than reactants.

Explanation:

Let's remember the concept of an exothermic reaction: a chemical reaction or physical change is exothermic if heat is released by the system into the surroundings. Because the surroundings are gaining heat from the system, the temperature of the surroundings increases.

Now, let's see how looks a potential energy diagram for an exothermic reaction:

This represents that the products have less potential energy than reactants.

Answer:

D) what is the empirical.formular of the compond

Explanation:

this is because we have two elements and to calculate the empiral formula we need to have their masses which is also given

Answer:

1.20 mole

Explanation:

1 Mole of Cu reacts to form  =  1 Mole of Hg

(1.20 mol × 1 mol) ÷ 1 mol

1.20 mol of Hg

The instantaneous evaporation of liquid refrigerant in an evaporator is called flash gas

What is a flash gas?

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The percent sugar concentration in orange soda is approximately 13.24%.

The volume of orange soda is given as 355 mL and its density is given as 1.043 g/mL. According to the nutrition label, there are 49 g of sugar in a 355 mL serving of orange soda.Using the density, we can convert the 355 mL volume into grams as follows:Volume = 355 mL; Density = 1.043 g/mL; Mass = ?To convert mL to g we need to multiply the volume with the density. Thus,Mass = Volume x Density= 355 x 1.043= 369.965 gThus, the mass of a 355 mL serving of orange soda is approximately 369.965 g.Next, we can calculate the percentage of sugar in the beverage as follows:Percent sugar concentration = (Mass of sugar / Total mass of beverage) x 100%Percent sugar concentration = (49 g / 369.965 g) x 100%Percent sugar concentration = 0.1324 x 100%Percent sugar concentration = 13.24%Therefore, the percent sugar concentration in orange soda is approximately 13.24%.

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Answer:

About 5.8 trillion miles is equal to 1 light year

so (5,878,600,000,000 miles)*(1.21 light-years) = 7,113,106,000,000 miles

Answer:

D

Explanation:

You need both, independant and dependant variables for a hypothesis.

The focal point of a mirror can be located either in front or behind the mirror depending on the type of mirror being used. Generally, there are two types of mirrors: convex and concave.

A convex mirror has a surface that curves outward, which means that the focal point is located behind the mirror. This type of mirror is commonly used in security mirrors or in car side-view mirrors.
On the other hand, a concave mirror has a surface that curves inward, which means that the focal point is located in front of the mirror. This type of mirror is commonly used in telescopes, microscopes, and dental mirrors.
It is important to note that the position of the focal point can affect how the image is formed by the mirror. A concave mirror, for example, can create a magnified or inverted image depending on where the object is placed in relation to the focal point.
In summary, the focal point of a mirror can be either in front or behind the mirror depending on the type of mirror being used. Understanding the properties of different types of mirrors can help us better understand how images are formed and how we can use mirrors in various applications.

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Answer:

soluble starch, maltose and various dextrins.

Explanation:

Explanation:

eam=%abudance×mass+%abudance×mass

eam=19.8%×10.013/100+80.2%×11.009/100

eam=198.2574/100+882.9218/100

eam=1081.1792/100

eam=10.811792

eam=10.812

To maximize the yield of NH3 in a reaction, it is important to find the optimum combination of pressure and temperature.

The Haber-Bosch process is used to produce ammonia from nitrogen gas and hydrogen gas. This reaction is exothermic, which means that it releases heat energy. According to Le Chatelier's principle, increasing the temperature will shift the equilibrium of the reaction towards the endothermic side, which means that more NH3 will be produced.

In summary, to maximize the yield of NH3 in the Haber-Bosch process, a combination of high pressure and moderate temperature should be used. This is because increasing the pressure will help to push the reaction towards the production of NH3, while increasing the temperature will help to shift the equilibrium of the reaction towards the endothermic side. The specific pressure and temperature used will depend on the conditions of the reaction, but typically pressures of 100-250 atmospheres and temperatures of 400-550°C are used in industrial applications.
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You have solid chemicals more than you what you need. You should: call 1-800-222-1222

Salts, mica, and diamond are a few examples. Metals: Elements and alloys make up solid metals, such as silver (e.g., steel). Generally speaking, metals are brittle, malleable, ductile, and good heat- and electricity-conductors. Ceramics: Ceramics are inorganic compound solids, typically oxides.

Call 1-800-222-1222 to talk with a regional poison control center in the United States. Calling this hotline number can connect you with poisoning specialists. They will provide you with more details. If you have any inquiries regarding poisoning, overdose, or overdose prevention, you should dial.

Never put used chemicals back in their containers. By doing this, you will contaminate it. Put the leftovers in the appropriate "waste container" for disposal.

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The number of aluminum atoms present in 30.0 g of \(Al_2O_3\) would be 3.54 x \(10^{23\) atoms.

According to Avogadro, 1 mole of every substance contains about 6.022 x \(10^{23\) atoms or molecules of the substance.

\(Al_2O_3\)  is a compound of aluminum and oxygen. In ion form, the compound ionizes to aluminum and oxygen ions as follows:

\(Al_2O_3\)  ---> \(2Al^{3+} + 3O^{2-}\)

This means that every 1 mole of  \(Al_2O_3\) contains 3 moles of Al.

Recall that: mole = mass/molar mass

Molar mass of  \(Al_2O_3\) = 101.96 g/mol

Mole of 30.0 g  \(Al_2O_3\) = 30/101.96

                                     = 0.2942 mole

From the mole ratio, the equivalent mole of Al would be:

0.2942 x 2 = 0.5885 mol

We said: 1 mole =  6.022 x \(10^{23\) atoms

Thus, 0.5885 moles = 0.5885 x  6.022 x \(10^{23\) atoms

                                  = 3.54 x \(10^{23\) atoms

In summary, 30.0 g of  \(Al_2O_3\) will contain 3.54 x \(10^{23\) atoms of aluminum.

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The two atoms appear to be oxygen (O) and chlorine (Cl). Because oxygen has six valence electrons and chlorine has seven, the two atoms would form a covalent bond.

What does Covalent bond mean?

A covalent bond is a type of chemical bond that involves the sharing of electrons between two atoms. This type of bond forms when the atoms in a molecule have similar electronegativity, meaning that they both have a similar affinity for electrons. Covalent bonds are typically stronger than other types of bonds and are found in molecules such as water and DNA.

What does DNA means?

DNA is an organic molecule that contains the genetic instructions for the development, functioning, growth, and reproduction of all known living organisms and many viruses. The DNA sequence contains the instructions required to build proteins, which serve as the foundation of cells and organisms. The DNA sequence is unique to each individual and is passed down from generation to generation.

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The equivalency solution has a pH of 2.624.

Nitrous acid is frequently created by adding a mineral acid to aqueous sodium nitrite solutions. Typically, acidification is carried out at ice-cold temperatures, and HNO2 is consumed on-site. Nitrous acid in its free form is unstable and breaks down quickly.

In a neutralization process, weak nitrous acid (HNO2) reacts with strong basic KOH.

HNO2 + KOH → KNO2 + H2O

Then, we determine how many moles of KOH were used:

volume KOH x concentration equals moles KOH. KOH

moles KOH = 0.190 L x 0.377 mol/L

moles KOH = 0.07153 mol

Next, we calculate the initial concentration of HNO2:

concentration HNO2 = moles HNO2 / volume HNO2

concentration HNO2 = 0.07153 mol / 0.190 L

concentration HNO2 = 0.3765 M

[HNO2] = 0.5 x 0.3765 M

[HNO2] = 0.1883 M

The following equation can be used to model how nitrous acid dissociates in water:

HNO2 + H2O ⇌ H3O+ + NO2-

The following equation relates the pKa to the acid dissociation constant, Ka, for this reaction:

pKa = -log Ka

So we can find the Ka value from the given pKa:

pKa = -log Ka

3.35 = -log Ka

Ka = 10⁻³

Ka = 4.47 x 10⁻⁴

The relationship shown below is true for the concentrations of the species involved at equilibrium:

Ka = [H3O+][NO2-] / [HNO2]

Ka = [H3O+][NO2-] / [HNO2]

Ka = [H3O+] [HNO2]

Solving for [H3O+], we get:

[H3O+] = Ka / [HNO2]

[H3O+] = (4.47 x 10⁻⁴) / (0.1883 M)

[H3O+] = 0.002374 M

Finally, we can calculate the pH of the solution:

pH = -log[H3O+]

pH = -log(0.002374)

pH = 2.624

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Answer:

Follows are the answer to this question:

Explanation:

pleas find the attachment file.

Formula for ΔE:

\(\Delta E = \sum \text{Bond energy of recatants}- \sum \text{Bond energy of Products}\)

    \(= 6 ( B.E_{C-C}) +12 (B.E_{C-H}) +(B.E_{o \ = \ o}) - 6(B.E_{C-C})-10(B.E_{C-H}) -( B.E_{C=0}) -2(B.E_{0-H})\\\\ = \bold{2 (B.E_{C-H}) +(B.E_{o \ = \ o}) -( B.E_{C=0}) -2(B.E_{0-H})}\\\\\)

to calculate the value for ΔE put the value in above formula:

Explanation:

It is given that,

Water flows over Niagara Falls at the average rate of 2,400,000 kg/s

The average height of the falls is 50 m

We need to find the power of Niagara Falls.

The gravitational potential energy of falling water is given by :

P = mgh

Power is rate of doing work i.e.

\(P=\dfrac{W}{t}\\\\P=\dfrac{mgh}{t}\\\\P=\dfrac{m}{t}\times gh\)

We have, m/t =  2,400,000 kg/s

So,

\(P=2400000\times 9.8\times 50\\\\P=1.176\times 10^9\ W\)

If the number of bulbs are n that could power 15 W LED, the,

\(n=\dfrac{1.176\times 10^9}{15}\\\\n=78400000\ \text{bulbs}\)