How much kinetic energy does a moving object have if its mass is 100 kg and it is moving at a speed of 5 m/s

The diagram shows a picture of a compound.

A compound is a substance that is made up of two or more different elements that are chemically bonded together in a specific ratio.

This means that the elements are combined in a way that creates a new substance with different physical and chemical properties than the individual elements.

Compounds can be formed through a variety of chemical reactions, such as combining elements through a chemical bond or through a reaction between an acid and a base.

So for the given diagram, we can see that it represents two or more elements chemically combined.

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Answer:

Explanation:

The balanced chemical equation for the reaction between sulfuric acid and sodium hydroxide is:

H2SO4 + 2NaOH → Na2SO4 + 2H2O

From the equation, we can see that one mole of sulfuric acid reacts with two moles of sodium hydroxide. Therefore, the number of moles of sodium hydroxide used in the reaction is:

n(NaOH) = c(NaOH) x V(NaOH) = 0.400 mol/L x 0.0200 L = 0.00800 mol

Since one mole of sulfuric acid reacts with two moles of sodium hydroxide, the number of moles of sulfuric acid used in the reaction is twice that of sodium hydroxide:

n(H2SO4) = 2 x n(NaOH) = 2 x 0.00800 mol = 0.0160 mol

The concentration of the sulfuric acid can be calculated by dividing the number of moles by the volume used in the titration:

c(H2SO4) = n(H2SO4) / V(H2SO4) = 0.0160 mol / 0.0250 L = 0.640 M

Therefore, the concentration of the dilute sulfuric acid is 0.640 M.

Answer: 3 pounds

Explanation:

ANSWER

Fe³⁺ is being reduced

Fe³⁺ + 3e⁻ → Fe

EXPLANATION

Fe³⁺ is reduced as in the reaction, Fe goes from +3 to 0 which indicates the gain of electrons.

When we convert 11.4 g/cm³ to lb/ft³, the result obtained is 707.92 lb/ft³

454.55 g/cm³ = lb/cm³

Therefore,

11.4 g/cm³ = 11.4 / 454.55

11.4 g/cm³ = 0.025 lb/cm³

1 ft = 12 in

1 in = 2.54 cm

Thus,

12 in = 12 × 2.54

12 in = 30.48 cm

We can say

1 ft = 30.48 cm

Therefore,

1 ft³ = 30.48³ = 28316.84 cm³

Now, we can convert 0.025 lb/cm³ to lb/ft³ as follow:

(1/28316.85) lb/cm³ = 1 lb/ft³

0.025 lb/cm³ = 0.025 ÷ (1/28316.85) =  0.025 × 28316.85

0.025 lb/cm³ = 707.92 lb/ft³

Thus,

11.4 g/cm³ = 707.92 lb/ft³

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Answer:

No

Explanation:

It is not easier for an atom to lose a proton or a neutron because these particles are held together by very strong nuclear forces within the atom.

Protons are positively charged particles

Neutrons do not carry any charges.

  In the nucleus of an atom, both protons and neutrons can be found.

As with both particles, the very strong attractive force makes them very difficult to remove in ordinary chemical reactions.

Nuclear forces are one of the strongest forces that keeps an atom especially the nucleus together. Only in nuclear reactions to we encounter a situation where nuclear materials are changed, in that regard the properties of the atom also changes.

Answer:

genes (c)

Explanation:

since traits are passed down genetically, so her mother or father must have one (or even one of her grandparents)

hope this helps!:)

Answer: D.

Explanation:looks right to me it’s for sure not A hope did helped

Answer:

the picture isnt very clear, could you retake it?

Answer:

A. Alpha Decay

Explanation: makes sence

Answer:

B.K2(OH)2 i think that is the answer

Answer:

The correct answer is - D. Red, green, violet​.

Explanation:

Visible light is the spectrum of light that can be seen by the naked eyes of humans without any equipment. This spectrum has various frequency light that helps us see things in color. The frequency of light ranges between seven different colors in which violet has the highest frequency and red has the lowest.

The different frequencies are as follows:

color               frequency

red (limit) 1.77

red                  1.91

orange  2.06

yellow  2.14

green  2.25

cyan  2.48

blue          2.75

violet (limit) 3.10

On this basis of this the group of colors of the visible light is listed from

lowest to the highest frequency - Red, green, violet​

Answer:

what

Explanation:

i d k what this question is

Aluminium and Chromium are known to form self-limiting oxide surface layers that are protective against further corrosion.

Stainless steel is a well-known example of an alloy that resists corrosion with the help of an oxide layer because the alloying element chromium (Cr) creates an impenetrable stable oxide layer (Cr2O3, also known as chromia) along the grain boundaries and surface.

The electrochemical process of anodizing transforms the metal surface into an attractive, long-lasting, corrosion-resistant anodic oxide finish. Although other nonferrous metals, such as magnesium and titanium, can also be anodized, aluminum is best suited for the process.

Normal protection for aluminum in air is provided by a molecule-thin layer of its own oxide.

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Answer:

If there is a zero between two non-zero digits then it is also a significant figure. For example; 4.5006 have five significant figures. Zeroes at the end or on the right side of the number are also significant. For example; 0.500 has three significant figures.The number of significant figures in a number use the following 3 rules: Non-zero digits are always significant. Any zeros between two significant digits are significant. A final zero or trailing zeros in the decimal portion ONLY are significant.

Answer & Explanation:

Orbitals are made up of subshells- s, p, d, f.

Each subshell can only accommodate a certain number of electrons:

s- 2 electrons

p- 6 electrons

d- 10 electrons

f- 14 electrons.

The subshells are used to denote the element by spelling out its electronic configuration.

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The chemical element in group one that is also a member of period 2 is lithium.

The chemical element in group one that is also a member of period 2 is lithium therefore, the element referred to here is lithium. Group 1 has only one valence electron. If we add one to 23, we will have 24 and the element is chromium.

For question three, the focus is on period 5, five groups to the previous answer will give us the element molybdenum. The atomic number of Mo is 42 and its mass number 96 hence it has 54 neutrons. The element that has atomic number 54 is Xe.

The element that has atomic mass 43 which is reversal of the atomic number of the former answer is scandium.

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Br2 represents both an element and a molecule.

A molecule is defined as a group of atoms bonded together. An element is defined as a substance that cannot be chemically broken down further into simpler substances. Br2 is only bromine and it is two bromine atoms boned together to form a molecule.

The [H3O+] of a solution with pH = 8.7 is approximately 1.995 x 10^-9 M.

What is ph solution ?

The pH of a solution is a measure of its acidity or basicity. It is defined as the negative logarithm (base 10) of the concentration of hydronium ions, [H3O+], in the solution. Mathematically, pH is expressed as:

pH = -log[H3O+]

where [H3O+] is the concentration of hydronium ions in moles per liter (M) of the solution. pH values range from 0 to 14, where a pH of 7 is considered neutral. A pH value less than 7 indicates acidity, while a pH value greater than 7 indicates basicity or alkalinity. The pH scale is logarithmic, meaning that a change of one unit in pH represents a ten-fold change in the concentration of hydronium ions. For example, a solution with a pH of 3 has ten times more hydronium ions than a solution with a pH of 4.

The pH of a solution is defined as the negative logarithm (base 10) of the concentration of hydronium ions, [H3O+], in the solution. The mathematical expression for this relationship is:

pH = -log[H3O+]

We can rearrange this equation to solve for [H3O+]:

[H3O+] = 10^(-pH)

Substituting the given pH value of 8.7 into this equation, we get:

[H3O+] = 10^(-8.7)

Using a calculator or logarithmic tables, we find that:

[H3O+] = 1.995 x 10^(-9) M

Therefore, The [H3O+] of a solution with pH = 8.7 is approximately 1.995 x 10^-9 M.

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8.253 is the pH of a 0.307 M solution of NaNO\(_2\). The ionization constant, a, for the acid, HNO\(_2\), is 4.60×10⁻⁴.

In chemistry, the pH scale is used to define the level of basicity or acidity of an aqueous. pH has historically stood for " Hydrogen potential" (or "power of hydrogen").

Lower pH values are recorded for acid solution (solutions with greater H ion concentrations) than for basic or alkaline solutions.

NO\(_2\)⁻ + H\(_2\)O → HNO\(_2\) + OH⁻

Kb = [HNO\(_2\) ][OH⁻]/[NO\(_2\)⁻]

Kb = 1.00X10⁻¹⁴

Kb = 1.00X10⁻¹⁴/ 4.60X10⁻⁴= 2.17X10⁻¹¹

[HNO\(_2\) ] = [OH⁻] = x

[NO\(_2\)⁻ ] = 0.148-x

Kb = 2.17X10⁻¹¹= x² / 0.148

x = [OH⁻] = 1.79X10⁻⁶

pOH = 5.747

pH = 14.000 - pOH = 8.253

Therefore, 8.253 is the pH of a 0.307 M solution of NaNO\(_2\). The ionization constant, a, for the acid, HNO\(_2\), is 4.60×10⁻⁴.

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In the ground state, it should be noted that the the number of valence electrons the K-42 isotope has is only one valence electron.

In the first group of the periodic table is potassium. It has a valence shell with one electron.

We can assume that potassium only has one electron on its valence shell because it belongs to group 1. The isotope is irrelevant because the only distinction between isotopes is the number of neutrons present in their nuclei.

In summary, it should be noted that K-42 only possesses one valence electron.

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Two isotopes of potassium are K-37 and K-42. How many valence electrons are in an atom of K-42 in the ground state?

Answer:

Two positive aspects of using methane recapture systems are able to generate significant electricity. Another benefit is that the process of anaerobic digestion creates heat that can be used to warm buildings where animals are kept

Answer:  The correct answer is;

Two positive aspects of using methane recapture systems include lowering the impact on greenhouse gasses and the production of energy. Methane is a very potent greenhouse gas that is contributing to global warming. As a result, the recapturing process reduces the methane impacts of global warming by reclaiming and reusing the gas for other purposes. Recaptured methane can be stored and used to generate electricity or used as fuel to power updated vehicles and other engines on the farm. The overall benefits from this combination are reducing impacts causing global warming and lower the cost of electricity or fuel on the farm.

Explanation:  This answer has been confirmed correct.

The number of moles of NaCl dissolved in the water to make the given solution is 1 mole.

A mole can be described as a unit that is employed to calculate the count of particles. The particles which are counted are usually identical entities, individually distinct.

The amount of chemical substance can be measured in the terms of the mole and the number of entities in one mole is approximately equal to 6.023 × 10 ²³.

Given, the one liter of a 1 M solution of NaCl.

The concentration of the NaCl solution = 1 M

The molarity of the given solution, \(M = n/V\)

The number of moles of NaCl, n = M ×V = \(\displaystyle {1 mol L^{-1}}\times{1L}\) = 1 mol

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Answer:

among these which is not a base is CaSO4

Answer:

?

Explanation:

I'm very sorry I couldn't get you a answer, I haven't learned this in school.

At least not this stuff, my apologies!

The Method of Mixtures Electrical Method is a method used to determine the electrical conductivity of a material.

The Electrical Method is a geophysical prospecting technique that uses electrical resistivity to map subsurface features, such as geological structures, fractures, and mineral deposits.

It involves measuring the amount of current that passes through a mixture of two materials under the application of a known voltage. The electrical conductivity of each material can then be determined by calculating the ratio of the current to the applied voltage. The electrical conductivity obtained from the Method of Mixtures Electrical Method can be used to characterize materials such as semiconductors and insulators.

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Answer: A or C because of the civil right movement changed a lot of stuff as if it never happened blacks would of still be segregated, the U.S wouldn't be the same and they also mentioned that the U.S would not be respected by many other countries which would hurt them from developing even more in the future.

Molarity is given by the following equation:

From this equation, we can solve for liters and use the given values:

Replace for the given values:

1. 0.902M

2. 1.61M

The concentration of Fe²⁺ in a sample with an absorbance of 0.872, determined through the calibration curve \(y = 0.0042x + 0.012\), is 205 µg/dL.

In many analytical techniques, it is common to prepare calibration curves from standard solutions to determine the concentration of an unknown analyte. In this problem, we want to determine the concentration of Fe²⁺ and the following linear regression is made:

\(y = 0.0042x + 0.012\)

where,

The concentration of Fe²⁺ in a sample with an absorbance of 0.872 is:

\(y = 0.0042x + 0.012\\x = \frac{y - 0.012}{0.0042} = \frac{0.872 - 0.012}{0.0042} = 205 \mu g/dL\)

The concentration of Fe²⁺ in a sample with an absorbance of 0.872, determined through the calibration curve \(y = 0.0042x + 0.012\), is 205 µg/dL.

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Water molecules did not have a slight negative charge on one end and a slight positive charge on another, the loss of polarity would have profound effects on various biological, chemical, and physical processes. The unique properties of water that are vital for life as we know it would be significantly altered, potentially rendering many biological systems nonfunctional and disrupting the stability of ecosystems.

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Answer:

The answer would be cation

Explanation:

Answer:

it's an anion

if it has more electrons than protons, then it has a negative net charge making it an anion

One of the most prevalent members of the alcohol family of organic molecules is isopropyl alcohol, usually known as 2-propanol.

Draw the structure​ of 3-isopropyl-6-methylcycloheptane:

One of the most prevalent members of the alcohol family of organic molecules is isopropyl alcohol, usually known as 2-propanol.

A flammable, volatile alcohol (C3H8O) that is mostly employed as rubbing alcohol and a solvent.

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