For the cell notation shown, which species is undergoing reduction?

Answer:

False

Explanation:

Amplitude does not affect wavelength

Answer:

ok

Explanation:

why I needed to give a answer to a question. I want to ask the question. brainly solve this issue. i cant ask questions without answering to 1 questions.

Answer:

Metal expands when heated. Length, surface area and volume will increase with temperature. ... Thermal expansion occurs because heat increases the vibrations of the atoms in the metal

Explanation:

hope this help :)

Answer:

Length, surface area and volume will increase with temperature.

Explanation:

Metal expands when heated. Length, surface area and volume will increase with temperature. ... Thermal expansion occurs because heat increases the vibrations of the atoms in the metal

Answer:

Carnivores and omnivores are secondary consumers. Many carnivores eat herbivores. Some eat omnivores, and some eat other carnivores. Carnivores that consume other carnivores are called tertiary consumers.

E.g

Felines, ranging from domestic cats to lions, tigers, and other large predators.

Some canines, such as the Gray Wolf

Hyenas.

ferrets.

Polar Bears.

Pinnipeds ( seals, sea lions, walruses, etc.)

Birds of prey, including hawks, eagles, falcons, and owls.

Answer:

I believe your answer is B. Each orbit has a specific energy level.

Hope this helped!

Answer: The main difference between the two is their fat content. Heavy cream has slightly more fat than whipping cream. Otherwise, they are nutritionally very similar. You can use them interchangeably in recipes without affecting the taste, although they may lead to different consistencies.

Explanation:

all of them are right

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Your answer is

true

hope it helps you

Answer:

hydrogen bonding

Explanation:

The two strands of DNA are held together by hydrogen bonds between complimentary nucleotides.

The most helpful feature of the radioisotope americium-241 for the smoke detector to work is its Long half-life.

What is Half-Life?

Half-life is the time required for a quantity to reduce by half to its initial value. The half-life of any radioisotope is represented by [tex]t_{1/2}[/tex] .

Americium-241 (²⁴¹Am) is the most common isotope of americium.

Americium-241 has a half-life of 432 years.

Am-241 decays by emitting alpha particles and gamma radiation to become neptunium-237.

Thus, the most helpful feature of the radioisotope americium-241 for the smoke detector to work is its Long half-life.

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Smoke detectors are the safety devices for fire protection that detects smoke and gives alarms as a warning. The long half-life of the radioisotope would be most practical for the detector.

Radioisotopes are chemical substances that have unstable neutrons, protons and some amount of excess energy. They have a half-life which is the time by which they get reduced or decay to half quantity.

Americium-241 is the radioactive isotope of americium and have a half-life of 432.2 years. It helps in the alarm as the smoke particle disrupt the electric current produced by the isotope and results in the warning of the device to go on.

Therefore, option A. long half-life is the feature that would be most useful for the smoke sensor.

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Answer:

Q = mcΔt but this time rearrange to find for c

Explanation:

Q or energy = 78.2J

mass of lead  =  45.6g

Specific heat capacity of lead = ????

Δt = 13°C

Q = mcΔt

Rearrange the equation to find for c

c = Q / m x Δt

c = (78.2) / (45.6) x (13)

c ≈ 0.132 J °C

Answer:

wish it helps anything else comment at my answer

Your answer is B

Sun and wind are considered renewable energy, meaning that it won't polute the Earth. And as far as I know, the Sun and wind can't really run out. So it can last a very long time!

Hope this helps!

-Daisuke

Answer:

As ethanoic acid is basically a acid

it will turn blue litmus red and on a red litmus paper

there will be no effect

A mixture of iodine and sulphur can be separated by adding Carbon disulphide that is (CS₂) then stir the solution and filter it . As sulphur dissolved in CS₂, so it come into filter and got separated from the mixture.

Answer:

because there is not enough pressure to form a crystal in sedimentary rocks. This is my understanding

Explanation:

Please correct me if wrong.

Answer:

Sometimes, it is necessary to produce a small amount of iron more quickly, for example if railway workers need to produce molten metal to fix a broken rail.

Explanation:

The thermite reaction uses aluminium powder and iron (III) oxide. When ignited, the mixture reacts vigorously because of the large difference in reactivity between aluminium and iron.

The aluminum can create more durable bonds with oxygen than it can with hydrogen. Since a lot of heat is produced throughout the entire reaction, molten iron that may be used to link railroad tracks is produced as a result of the reaction.

Chemical element aluminum has the atomic number 13 and the symbol Al. Aluminum has a density that is around one third that of steel, which is lower than that of most common metals. It has a strong affinity for oxygen, and when exposed to air, creates a protective oxide coating on the surface.

Aluminum (Al) and iron(III) oxide (Fe2O3) react to generate aluminum oxide (Al2O3) and molten iron (Fe). Aluminum displaces iron in iron(III)oxide to generate aluminum oxide in what is known as a displacement reaction.

Iron oxide and aluminum are used to repair machine parts that have cracks or serve as railing on railroad tracks. Thermite reaction is the name given to this process.

Thus, The aluminum can create more durable bonds with oxygen than it can with hydrogen.

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#SPJ2

Fe +O2 =Fe2O3 is correct !

Answer:

Molecules at a higher temperature have higher/more kinetic energy, speed, and momentum compared to molecules at a lower temperature.

Explanation:

It's actually true hope it helps.

Answer:

Al

Explanation:

Al = Aluminum

Answer:

who's asking?

Explanation:

Answer: Copper (I) Carbide

Explanation:

Copper is a polyatomic ion, meaning it has multiple charges. Carbon has an outer shell consisting of 4 valence electrons so it can either add or lose 4 electrons so it’s charge can be -4 or +4. As said Copper has multiple charges but they are positive, so in this case Cu4 would be 4 +1 charges compared to C which would be -4. Therefore this is a 4:1 ratio, meaning Cu4C is Copper (I) Carbide

hope this helps :)

The Mass percent of sugar in the sample was 66% while the Total percent recovery is 95.7%

An equation is an expression used to show the relationship between two or more variables and numbers.

Given the sample had a mass of 53.5g, hence:

Mass percent of sugar in the sample = (35.2/53.5) * 100% = 66%

Total percent recovery = [(35.2 + 16)/ 53.5] * 100% = 95.7%

The Mass percent of sugar in the sample was 66% while the Total percent recovery is 95.7%

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The percentage of the total energy contributed by fat = 51.59% of fat

The quantity of fat in the hamburger = 36grams

But 1 gram of fat = 9 kcal( standard energy value per gram of fat).

That is , 9kcal = 1 gram

X kcal = 36 grams

cross multiply,

X kcal = 9 × 36

= 324kcal

To calculate the percentage of 324kcal of fat in 628 kcal,

[tex]\% = \frac{324}{628} \times \frac{100}{1} [/tex]

[tex]\% = \frac{32400}{628} [/tex]

% = 51.59% of fat

The percentage of the total energy contributed by fat = 51.59%

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