PLSSS HELPPP MEEE WITH THIS QUESTIONNNNN NO GUESSING PLSSSS
Which process is shown in the plant cell below?

A= cell growth
B= cell reproduction
C= metamorphosis
D= photosynthesis

C

The trout will suffer from disease

Answer:

C

Explanation:

I got it correct on a quiz I did that had this question

NaOH + HNO₃ ----> ?

This is a double replacement reaction. The general equation for double replacement reactions is:

AB + CD ----> AD + BC

To predict the products of this reaction we have to "exchange" the ions. Also, when an acid reacts with an hydroxide, we produce a salt and water.

sodium hydroxide + nitric acid -----> sodium nitrate + water

NaOH + HNO₃ -----> NaNO₃ + H₂O

To determine if the equation is balanced we have to find the number of atoms of each element that we have on both sides of the equation.

NaOH + HNO₃ -----> NaNO₃ + H₂O

Na: 1 Na: 1

O: 4 O: 4

H: 2 H: 2

N: 1 N: 1

We have the same amount of atoms of each element on both sides of the equation. Then the equation is balanced.

Answer: NaOH + HNO₃ -----> NaNO₃ + H₂O

The smallest and least massive atomic particle is the electron, which is negatively charged.Due to the electron's extremely small mass, it is not counted inside the element's atomic number.

Although they are very small and possess a mass of 1/1850 of that of a protons or neutron, electrons carry a negative charge.Since they are so tiny, they do not, in reality, add to the weight of the atom.

These particles are frequently referred to it as subatomic particles since they are the building blocks of atoms.There are protons, neutrons, and electrons, three types of subatomic particles.Protons and electrons, two of a subatomic particles, each have an electrical charge of one or the other.

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Answer:

They can use man made materials or they can also have designed areas that people can’t go into

Explanation:

Answer:

tas should help his dad

Answer:

Blue dye spreads out quicker

Explanation:

This is because the dye gets spread out by water molecules. Warm water has faster moving water molecules than cold water.

Answer:

b

Explanation:

Answer:

The shorter a wave length, the high its energy.       C

Explanation:

They are all related by one important equation: Any electromagnetic wave's frequency multiplied by its wavelength equals the speed of light. FREQUENCY OF OSCILLATION x WAVELENGTH = SPEED OF LIGHT We can use this relationship to figure out the wavelength or frequency of any electromagnetic wave if we have the other measurement.

Hope it helps!

To prepare a buffer with a pH of 4.0 using the conjugate pair HCOOH/HCOO^-, we can make use of the Henderson-Hasselbalch equation, which relates the pH of a buffer solution to the pKa and the ratio of the concentrations of the acid and its conjugate base.

pH = pKa + log([A-]/[HA])

Where pH is the desired pH (4.0 in this case), pKa is the acid dissociation constant (given as 1.78 x 10^(-4) for HCOOH), [A-] is the concentration of the conjugate base (HCOO^-), and [HA] is the concentration of the acid (HCOOH).

pH - pKa = log([A-]/[HA])

10^(pH - pKa) = [A-]/[HA]

10^(4.0 - (-log10(1.78 x 10^(-4)))) = [A-]/[HA]

10^(4.0 + 4.75) = [A-]/[HA]

10^(8.75) = [A-]/[HA]

[A-]/[HA] = 10^(8.75)

Therefore, the ratio of acid to base needed to prepare the buffer with pH 4.0 is approximately 10^8.75.

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Approximately 63.2% of the acid (HA) is not ionized.

Given:

pKa = 4.861

pH = 4.595

To determine the percentage of the acid that is not ionized, we can use the Henderson-Hasselbalch equation:

pH = pKa + log([A-]/[HA])

Rearranging the equation:

log([A-]/[HA]) = pH - pKa

Substituting the given pH and pKa values:

log([A-]/[HA]) = 4.595 - 4.861

Simplifying:

log([A-]/[HA]) ≈ -0.266

To find the ratio of [A-] to [HA], we can take the antilog of both sides:

[A-]/[HA] ≈ 10^(-0.266)

[A-]/[HA] ≈ 0.577

Since the acid (HA) and its conjugate base ([A-]) are in a 1:1 ratio, the percentage of the acid that is not ionized can be calculated as:

Percentage non-ionized = ([HA] / ([HA] + [A-])) * 100

Percentage non-ionized = ([HA] / (1 + [HA]/[A-])) * 100

Percentage non-ionized = ([HA] / (1 + 1/0.577)) * 100

Percentage non-ionized ≈ (0.577 / 1.733) * 100

Percentage non-ionized ≈ 0.333 * 100

Percentage non-ionized ≈ 33.3%

Therefore, approximately 63.2% of the acid (HA) is not ionized.

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Answer:

using electric cars , Transitioning to energy sources that do not emit greenhouse gases, such as solar, wind, biofuels, and nuclear ☢️

Explanation:

Question:

If butane had a volume of 500 ml. at a pressure of 1.5 atm and a temperature of 20 °C, what would the new volume of the gas be at a temperature of 30 °C and a pressure of 500 Torr?

Solution Given:

Let P be the pressure V be volume and and T be temperature.

Volume of Butane [\(V_1\)] = 500 ml

Pressure of Butane [\(P_1\)] = 1.5 atm

Temperature [\(T_1\)] =20°C=20+273=293K

New Volume of Butane [\(V_2\)] = ?

New Pressure of Butane [\(V_2\)] =500 Torr=500*0.00131579=0.657895 atm

Note: 1 Torr= 0.00131579 atm

New Temperature of Butane [\(V_2\)] =30°C=30+273=303K

Now

By using combined gas law equation:

\(V_2=V_2*\frac{P_1*T_2}{P_2*T_1}\)

\(V_2=500*\frac{1.5*303}{0.657895*293}=1178.9 ml\)

The new volume of Butane is 1178.9 ml

Answer:

I haven't been getting answers either, so you're not alone. I am pretty sure it doesn't sink or float.

Explanation:

Gold has the same density as water, so it is neutrally buoyant. Hope this helps a bit!

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Gamma rays have the shortest wavelength

The Elements can be ranked From Most Reactive To Least Reactive as;

as ;

The rate at which a chemical material conducts a chemical reaction over time is known as reactivity. During a chemical process, an element has a relative tendency to gain or lose an electron.

Reactivity in pure compounds is governed by the sample's physical characteristics. Reactivity is the catalyst that causes a chemical compound to react chemically, either on its own or with other substances, releasing energy overall.

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complete question;

Rank These Elements From Most Reactive To Least Reactive: Mg,Na,Rb,Ne

Answer:

i dont no this one plz the question is hard

The correct answer is c. ammonium chloride. When ammonium chloride is dissolved in water, it undergoes hydrolysis, which means that it reacts with water to form acidic species.

Specifically, the ammonium ion (NH4+) reacts with water to form hydronium ions (H3O+), which are responsible for the acidic properties of the solution. The chloride ion (Cl-) has no effect on the acidity of the solution.
In contrast, sodium chloride (a) and calcium nitrate (d) are both salts that produce neutral aqueous solutions. Sodium acetate (b) is a salt that produces a basic aqueous solution due to the presence of the acetate ion (CH3COO-), which reacts with water to form hydroxide ions (OH-). Rubidium perchlorate (e) is a salt that is also neutral in aqueous solution.
It's worth noting that the acidity of a salt solution depends on the relative strengths of the conjugate acid-base pairs involved. In the case of ammonium chloride, the ammonium ion is a weak acid (pKa = 9.24), while water is a much stronger base (pKa = 15.7), so the reaction between them favors the formation of hydronium ions and leads to an acidic solution.

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The minimum volume of 0.289 M potassium iodide solution required to completely precipitate all of the lead in 185.0 ml of a 0.110 M lead (II) nitrate solution is approximately 70.4 ml.

All of the lead in 185.0 ml of a 0.110 M lead (II) nitrate (Pb(NO3)2) solution, we need to consider the stoichiometry of the reaction between KI and Pb(NO3)2.

The balanced chemical equation for the reaction is:

2KI + Pb(NO3)2 → PbI2 + 2KNO3

From the balanced equation, we can see that 2 moles of KI react with 1 mole of Pb(NO3)2 to form 1 mole of PbI2.

Given:

Volume of Pb(NO3)2 solution = 185.0 ml

Concentration of Pb(NO3)2 solution = 0.110 M

Concentration of KI solution = 0.289 M

We can use the following relationship based on the stoichiometry of the reaction:

(C1 × V1) / n1 = (C2 × V2) / n2

Where:

C1 = Concentration of Pb(NO3)2 solution

V1 = Volume of Pb(NO3)2 solution

n1 = Stoichiometric coefficient of Pb(NO3)2

C2 = Concentration of KI solution

V2 = Volume of KI solution

n2 = Stoichiometric coefficient of KI

Substituting the values into the equation:

(0.110 M × 185.0 ml) / 1 = (0.289 M × V2) / 2

Simplifying the equation:

V2 = (0.110 M × 185.0 ml × 2) / (0.289 M)

V2 ≈ 70.4 ml

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answer

Please add answer choice

Explanation:

Answer:

Explanation:

.........................................................      

This style of boldface writing has a few authorized applications. In general, style manuals advise against using it to emphasize. Italics and sentence structure are used for this. It is preferable to utilize boldface text sparingly because it might be aesthetically obtrusive.

Often boldfaced and larger than the surrounding text, titles, headers, and subheadings are used. For instance, the heading "Titles and headings" in this section is bold. This is typical for web publishing.

Boldface is frequently used in textbooks, manuals, and various types of web writing to draw attention to the first occurrence of a crucial keyword that is crucial to the topic of a chapter or article. For instance, in our article on the distinction between program and programme, we boldfaced the text to draw attention to the first occurrence of each keyword (i.e., program and programme). Later, the words do not appear in boldface.

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the answer for the scientific notation is\(D. 2.4 x 10¹².\)

Scientific notation is a way of writing numbers that is commonly used in science and mathematics to represent very large or very small numbers in a compact and convenient format. The notation expresses a number as a coefficient multiplied by a power of 10. The coefficient is a number between 1 and 10, and the power of 10 represents the number of zeros to the right (for positive powers) or left (for negative powers) of the decimal point.

To perform the multiplication \((6.0 × 10^5) × (4.0 × 10^6)\), we can simply multiply the coefficients and add the exponents of 10:

\((6.0 × 10^5) × (4.0 × 10^6) = 24.0 × 10^(5+6) = 24.0 × 10^11\)

To express the answer in correct scientific notation, we need to make sure the coefficient is a number between 1 and 10. We can do this by dividing the coefficient by 10 and adding 1 to the exponent of 10:

\(24.0 × 10^11 = 2.4 × 10^(11+1) = 2.4 × 10^12\)

Therefore, the answer is\(D. 2.4 x 10¹²\)

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Tetraamminedichloridoiron(3) nitrate

The answer is d) 51 g. To calculate the amount of mass remaining after a certain amount of time, we need to use the half-life formula.

The answer is d) 51 g. To calculate the amount of mass remaining after a certain amount of time, we need to use the half-life formula. The half-life formula is N = N₀(1/2)^(t/T), where N is the final amount, N₀ is the initial amount, t is the time elapsed, and T is the half-life.
In this case, the initial amount is 200.0 g, the half-life is 10.0 years, and the time elapsed is 55 years. Plugging these values into the formula, we get:
N = 200.0 g (1/2)^(55/10)

N = 51 g
Therefore, after 55 years, 51 g remains of the radioactive isotope. It's important to note that the half-life is the amount of time it takes for half of the radioactive material to decay. This means that after one half-life, there will be half as much material remaining, after two half-lives, there will be one quarter remaining, and so on.

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Answer:

It would be Basic.

Explanation:

The higher the number, the more basic it is.

Answer:

its basic solution

Explanation:

b/c the pH value greater than7 base

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