A relationship in which one variable increases and the other variable decreases is
called?

Answer: Area of a Triangle Equals Base x Height / 3

Explanation: Hope this works

Answer:

The calcium hydroxide solution will likely have the pH of 14 (very basic) while rain water will likely have a pH if 6.5 (slightly acidic).

Answer:

B. Presented in all matter!

Answer:

B- presented in all matter :)

Explanation:

good luck!

Answer:

Gold is element 79 and its symbol is Au.

Answer: Basic

Explanation:

A solution with a pH of more than 7 is considered basic.

Answer: The molecular formula will be \(C_6H_6O\)

Explanation:

Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.  

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.

The empirical formula is \(C_6H_6O\)

The empirical weight of \(C_6H_6O\) = 6(12)+6(1)+1(16) = 94 g.

The molecular weight = \(2\times \text{vapour density}=2\times 47=94\)

Now we have to calculate the molecular formula.

\(n=\frac{\text{Molecular weight}}{\text{Equivalent weight}}=\frac{94}{94}=1\)

The molecular formula will be=\(1\times C_6H_6O=C_6H_6O\)

The temperature at constant volume is 0.311, The temperature at constant pressure is 5.133.

What is mixture?

A mixture in chemistry is a compound composed of two or more chemical components that are not chemically linked. A mixture is a physical combination of two or more substances that retain their identities and are blended as solutions, suspensions, or colloids.

GIVEN :

Air = 200%

p = 77f, 1 atm

PV=nRT

1*200/100 = 12(77)T

= 0.3311

1*80/100 = 12(77)T

= 5.133

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Answer:

flourine

Explanation:

im not sure the answer

Answer:

Answer is D.Blue.

Explanation:

The hottest stars tend to appear blue or blue-white, whereas the coolest stars are red.

I hope it's helpful!

Answer:

D.Blue

Explanation:

When \(Ag_2O\) is added to a solution of glucose or fructose in \(NH_3(aq)\) followed by the addition of a few drops of \(AgNO_3(aq)\), a shiny silver mirror is deposited on the walls of the reaction vessel.

This is because glucose and fructose can reduce \(Ag^+\) to Ag, resulting in the deposition of a silver mirror.

However, some disaccharides may not have the reducing ability to form a silver mirror. Therefore, the question is asking which disaccharide, when added to a solution of \(Ag_2O\) in \(NH_3(aq)\), will NOT result in the deposition of a shiny silver mirror.

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Answer: The molecules in hot water move faster and are slightly further apart.

Explanation:

There's more space between the molecules, the volume of hot water has fewer molecules in it and weighs a little bit less than the same volume of cold water. So hot water is less dense than cold water.

The amount of heat required to raise the temperature of 295g of ethanol by 87°C is 61,092 Joules.

The formula to calculate the amount of heat required to raise the temperature of a substance is:

Q = m * c * ΔT

where Q is the heat required (in Joules), m is the mass of the substance (in grams), c is the specific heat capacity of the substance (in J/g°C), and ΔT is the change in temperature (in °C).

Plugging in the given values, we get:

Q = 295 g * 2.4 J/g°C * 87°C

Q = 61,092 Joules

As a result, 61,092 Joules of heat are required to increase the temperature of 295g of ethanol by 87°C.

The specific heat capacity (c) of ethanol is given as 2.4 J/g°C, which means that it takes 2.4 Joules of heat energy to raise the temperature of 1 gram of ethanol by 1 degree Celsius. By multiplying the mass of ethanol (295g) with the specific heat capacity (2.4 J/g°C) and the change in temperature (87°C), we get the amount of heat required to raise the temperature of the given amount of ethanol by the given amount of temperature.

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Answer: a compound!

Explanation: a compound is something that contains two or more elements that are chemically combined in a fixed proportion!

The initial amount of iodine-125 in a 500mg sample is not provided. Therefore, the only way to find the mass remaining after 300 days is to make use of the half-life and the concept of exponential decay.

The general formula for the amount remaining after time t is given by:

A(t) = A₀(1/2)^(t/h)

where A₀ is the initial amount, t is the time elapsed, h is the half-life, and A(t) is the amount remaining after time t.

In this case, we have h = 60 days and t = 300 days.

Substituting these values into the formula above, we get:

A(300) = A₀(1/2)^(300/60)A(300) = A₀(1/2)^5A(300) = A₀(1/32)

Therefore, the mass remaining after 300 days is 1/32 times the initial mass.

If we let x be the initial mass, then the mass remaining is (1/32) x

The problem states that the answer should be given in milligrams, so we must convert the mass remaining to milligrams. If the initial mass is x milligrams, then the mass remaining is:(1/32) x milligrams.

The answer is 15.625 mg.

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Once the water begins to boil, Carmen can expect a measurement of 100°C on the Celsius thermometer. Option b is correct.

At standard atmospheric pressure, water boils at 100°C, which is the boiling point of water. This is the temperature at which water changes from a liquid to a gas (water vapor) as it absorbs heat energy.

Option a (32°C) is the freezing point of water, while option c (212°C) and option d (373°C) are the boiling points of water at different pressure levels. However, at standard atmospheric pressure, the boiling point of water is 100°C. Hence option b is correct choice.

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Answer: In a transverse wave, particles of the medium vibrate up and down perpendicular to the direction of the wave. ... In a surface wave, particles of the medium vibrate both up and down and back and forth, so they end up moving in a circle.

Explanation:

Hope this helps :)

Answer:

Pluto is farthest from the sun and hence it receives extremely low energy of sun. The surface temperature of Pluto is about -240 !!!

The wavelength of the emitted photon is approximately 2.44 μm.

The wavelength of the emitted photon can be determined using the Rydberg formula as follow

\(\frac{1}{\lambda}=R_H\left(\frac{1}{n_1^2}-\frac{1}{n_2^2}\right)\)

where: lambda is the wavelength of the emitted photon,

\(R_H=1.0974\times10^7\text{m}^{-1} ,$n_1=19 n_2=5 :\frac{1}\)

\({\lambda}=R_H\left(\frac{1}{19^2}-\frac{1}{5^2}\right) \frac{1}\\\\\\{lambda}=1.0974\times10^7\text{m}^{-1}\left(\frac{1}{361}-\frac{1}{25}\right) \frac{1}\\{\lambda}=1.0974\times10^7\text{m}^{-1}\left(0.002709-0.04\right) \frac{1}\\{\lambda}=1.0974\times10^7\text{m}^{-1}\times(-0.037291) \frac{1}{\lambda}=-409446.34\text{m}^{-1} \lambda=-\frac{1}{409446.34\text{m}^{-1}}=2.44\times10^{-6}\text{m}\)

Therefore, the wavelength of the emitted photon is approximately 2.44 μm.

Rounded to two decimal places, this value is equal to 2.45 μm. Thus, the correct option is A) 2.45μm.

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The noble gas that precedes a given partial electron configuration must itself have an electron configuration that is complete up to the partial electron configuration. The noble gas's electron configuration should, when fully written out right before the partial electron configuration, give us a valid electron configuration for some element.

For the first series, the highest principal energy level has the number 4, so our noble gas should at least be one that is in the third period (numerically, the energy level is the same as the period number). That noble gas would be argon. The partial electron configuration given is not that of a noble gas (note: all noble gases have an electron configuration that contains Np⁶, where N = the highest principal energy level). So, the noble gas that appropriately precedes our first partial electron configuration is [Ar].

Argon's electron configuration is 1s²2s²2p⁶3s²3p⁶. Using the Aufbau Principle, 4s² would correctly follow 3p⁶. [Ar]4s²3d¹⁰4p² is equivalent to writing out 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p²; either way, this would happen to be the electron configuration of germanium.

Now that we hopefully have our fundamentals down, we can apply them to figure out the noble gases that precede the remaining partial electron configurations.

[Kr]5s²4d¹⁰5p⁵: This is the electron configuration of iodine.

[He]2s²2p⁵: This is the electron configuration of fluorine.

[Xe]6s²4f¹⁴5d¹⁰6p²: This is the electron configuration of lead.

[Ne]3s²2: This is the electron configuration of magnesium.

Answer:

50.96g

Explanation:

Given parameters:

Number of moles of H₃PO₄   = 0.52moles

Unknown:

Mass of the compound  = ?

Solution:

To find the mass of the compound:

    Mass  = number of moles x molar mass of H₃PO₄

Molar mass of H₃PO₄ = 3(1) + 31 + 4(16)  = 98g/mol

  Mass  = 0.52 x 98  = 50.96g

Answer: Raw meat, poultry and seafood. Feces may get onto raw meat and poultry during the butchering process. ...

Raw eggs. ...

Fruits and vegetables.

Explanation:

The five elements of chemical change include colour change, precipitate or gas formation, odour change, temperature change, and gas or precipitate formation.

When choosing an indicator for acid-base titrations, pick one whose pH range is compatible with the reaction's pH change. As an illustration, the pH quickly rises from 3 to 11 when a strong acid and base are titrated.

Chemical indicator: Any substance that can be used to detect the presence or absence of a chemical species at a threshold concentration in a solution, such as an acid or an alkali, usually by changing colour. Methyl yellow is a good illustration of this.

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Answer:

1. LiCi is formed by the treatment of lithium carbonate with hydrochloric acid

2. A combination reaction (also known as a synthesis reaction) is a reaction where two or more elements or compounds (reactants) combine to form a single compound (product).  

3. Chemical decomposition, or chemical breakdown, is the process or effect of simplifying a single chemical entity into two or more fragments.

4. A single-displacement reaction, also known as single replacement reaction or exchange reaction, is a chemical reaction in which one element is replaced by another in a compound

5. Double replacement reactions have two ionic compounds that are exchanging anions or cations.

6. The most electronegative elements are found on the top right of the periodic table.

7. cesium

8. Electronegativity describes the degree to which an atom attracts electrons in a chemical bond. But the electronegativity of two atoms would determine their bond type.

9. ionic bond

10. polar covalent bond

11. fluorine

12. Matter can change form through physical and chemical changes, but through any of these changes, matter is conserved. The same amount of matter exists before and after the change.

Hope i was able to help!!!

1..orbit

2..7

I hope this was helpful

Answer:

Option C. 52.057

Explanation:

The following data were obtained from the question:

Isotope >> Mass number > Percentage

A (Cr-50) > 50 >>>>>>>>>> 4.3

B (Cr-52) > 52 >>>>>>>>>> 83.8

C (Cr-53) > 53 >>>>>>>>>> 9.5

D (Cr-54) > 54 >>>>>>>>>> 2.4

Average atomic mass =?

The average atomic mass of chromium, Cr can be obtained as follow:

Average atomic mass = [(Mass of A × A%) /100] + [(Mass of B × B%) /100] + [(Mass of C × C%) /100] + [(Mass of D × D%) /100]

Atomic mass of Cr = [50×4.3)/100] + [52×83.8)/100] + [53×9.5)/100] + [54×2.4)/100]

= 2.15 + 43.576 + 5.035 + 1.296

Atomic mass of Cr = 52.057

Therefore, the atomic mass of chromium, Cr is 52.057