foraminifera
large rocks
sand and silt
Rivers that flow long distances deposit _______
into the ocean.
HURRY 10 POINTS

An electrovalent or ionic bond is a type of chemical bond that occurs between two atoms when one or more electrons are transferred from one atom to another. This results in the formation of two ions with opposite charges that are attracted to each other by electrostatic forces, forming an ionic bond.

Typically, an ionic bond occurs between a metal and a nonmetal. The metal atom loses one or more electrons to become a positively charged ion or cation, while the nonmetal atom gains one or more electrons to become a negatively charged ion or anion. For example, in the formation of sodium chloride (NaCl), sodium donates an electron to chlorine, forming Na+ and Cl- ions that are attracted to each other to form an ionic bond.

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Answer:

Atom

Explanation:

An atom is the smallest unit which represents the an element.

It retains the chemical properties of an element.

The formation of solid magnesium chloride (MgCl₂) by the reaction between chlorine gas (Cl₂) and magnesium metal (Mg) at high temperatures is classified as a synthesis reaction or a combination reaction.

Synthesis reactions involve the combination of two or more substances to form a single product. In this case, chlorine gas and magnesium metal combine to produce magnesium chloride as the sole product.

The balanced chemical equation for this synthesis reaction is:

Mg + Cl₂ ⇒ MgCl₂

Hence, the reaction between chlorine gas and magnesium metal to form solid magnesium chloride indicates a synthesis reaction, as the elements combine to form a compound.

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Electronegativity generally increases as you go across a row, or period, in the periodic table.

Electronegativity is a measure of an atom's ability to attract electrons towards itself in a chemical bond. As you move across a row in the periodic table from left to right, the number of protons in the nucleus increases, leading to a greater positive charge in the nucleus. This increasing positive charge pulls the electrons closer to the nucleus, resulting in a higher electronegativity.

Additionally, as you move across a period, the atomic size decreases. With a smaller atomic size, the outermost electrons are closer to the nucleus, which increases the attractive force between the electrons and the nucleus. This stronger attraction contributes to a higher electronegativity.

Thus, the combination of increased nuclear charge and decreased atomic size as you move across a period leads to an overall increase in electronegativity.

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Answer:

volume

Explanation:

it is always measured in volume

Fatty acid groups are referred to as B) acyl groups.

Fatty acids are organic compounds that consist of a long hydrocarbon chain with a carboxyl group (-COOH) at one end. The hydrocarbon chain is composed of carbon and hydrogen atoms, and its length can vary. Fatty acids play essential roles in various biological processes and are major components of lipids, including triglycerides and phospholipids.

When a fatty acid is involved in chemical reactions or is attached to other molecules, it typically undergoes a process called activation, where it is converted into an acyl group. An acyl group is formed by replacing the -OH (hydroxyl) group of the carboxyl group with an -OR (alkoxy) group. The -OR group can be derived from various molecules, such as coenzyme A (CoA) or other acyl carrier proteins.

For example, when a fatty acid is activated for incorporation into a triglyceride molecule, it forms a triglyceride acyl group. Similarly, when a fatty acid is incorporated into a phospholipid molecule, it forms a phospholipid acyl group. The acyl group represents the hydrocarbon chain of the fatty acid, which may vary in length and saturation.

Therefore, the correct answer to the question is B) Acyl.

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The true statement is Most of the minerals in granite weather to clay except quartz.

So, the correct answer is A.

This is because quartz is a very hard and durable mineral that is resistant to weathering. Other minerals in granite, such as feldspar and mica, are more susceptible to weathering and break down into clay minerals over time.

This process is known as chemical weathering, where minerals are altered or dissolved by chemical reactions with water and other substances in the environment.

While some minerals may weather more quickly than others, the overall rate of weathering depends on a variety of factors such as climate, topography, and the composition of the rock.

Hence, the answer of the question is A.

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Answer:

180

Explanation:

proton = 80

electron = 80

neutron = 100

Note:- the atomic number of an element is the number of protons/electrons in the atomic shell

(protons = electrons)

Mass number = number of protons/electrons + number of neutrons

MN= NP+ NN

MN = 80 + 100

MN= 180

I HOPE THIS HELPS

Answer:

45

Explanation:

1+4x1=5

2+5x2=12

3+6x3=21

5+8x5=45

Answer:

theres no picture

Explanation:

The volume of carbon dioxide that would be produced by this reaction if methane were consumed is: \(CH4 + 2O2 → CO2 + 2H2O\)

When methane gas and oxygen gas react, they produce water vapor and carbon dioxide gas. The volume of carbon dioxide produced by this reaction depends on the amount of methane gas that is consumed.

If 100 mL of methane gas were consumed, then the volume of carbon dioxide produced would be 44 mL. This reaction can be expressed in the following equation:
\(CH4 + 2O2 → CO2 + 2H2O\)

The mole ratio of methane gas to carbon dioxide gas produced by this reaction is 1:1. This means that if 100 mL of methane gas is consumed, then 44 mL of carbon dioxide gas will be produced. This is because 44 mL of carbon dioxide is equivalent to 1 mole of carbon dioxide gas, and 100 mL of methane gas is equivalent to 1 mole of methane gas.

Therefore, if 100 mL of methane gas is consumed in this reaction, then 44 mL of carbon dioxide gas will be produced. This can be determined by using the mole ratio of methane gas to carbon dioxide gas, which is 1:1.

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The given statement "atomic size increases down a main group and decreases across a period. in a transition series, size remains relatively constant" is true because  the size of atoms tends to increase as you move down a group, because the addition of new energy levels further from the nucleus results in an increase in the atomic radius.

This statement is based on the trend of atomic size in the periodic table. In general, the size of atoms tends to increase as you move down a group, because the addition of new energy levels further from the nucleus results in an increase in the atomic radius.

In contrast, as you move across a period, the size of atoms generally decreases due to an increase in effective nuclear charge that draws the electrons closer to the nucleus.

However, in a transition series, the size of atoms tends to remain relatively constant. This is because the transition metals have partially filled d-orbitals, which can shield the valence electrons from the nuclear charge to some extent. As a result, the size of the atoms in a transition series does not change dramatically as you move across the period.

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Answer:

Instantly Convert Kilograms (kg) to Pounds (lb av) and Many More Mass Conversions Online. Kilograms ... 1 Kilogram: The kilogram is defined as being equal to the mass of the ... 30 Kilograms to Pounds = 66.1387, 1,000 Kilograms to Pounds = 2204.6226 ... Kilograms to Newtons · Kilograms to Grams · Kilograms to Tonnes ...

Explanation:

Thale balanced half-reaction of aqueous Vanadium to solid Vanadium is  

V⁵⁺ + 3e- → V(s)

The reduction of vanadium(V) cations to solid vanadium involve the transfer of three electrons to vanadium cations, leading to a net reduction of the cations. Vanadium is a transition metal and is located in the fifth period of the periodic table.

Due to its electron configuration, vanadium has five valence electrons and can form five covalent bonds with other atoms. In the aqueous form, vanadium(V) cations have a charge of +5, which is due to the five electrons that it has lost.

In order for the reduction of vanadium(V) cations to solid vanadium to take place, three electrons must be transferred to the vanadium cations. This results in a balanced half-reaction, which can be written as

V⁵⁺ + 3e- → V(s)

The three electrons that are donated to the vanadium cations reduce the cations from a +5 charge to a neutral charge, resulting in the formation of solid vanadium.

The reduction of vanadium(V) cations to solid vanadium is an important process in many industrial and chemical applications.

Vanadium is often used to produce alloys and is used in the production of steel. It is also used as a catalyst in the production of sulfuric acid and is used in the production of dyes and inks.

The reduction of vanadium(V) cations to solid vanadium are also important in biological systems, as vanadium is an essential trace element for some organisms.

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The metal is palladium. The density of a face-centered cubic (fcc) crystal can be calculated using the following equation:

ρ = (z * M) / (a^3 * N_A)

Where:

ρ is the density in g/cm^3

z is the number of atoms per unit cell

M is the molar mass of the metal in g/mol

a is the edge length of the unit cell in cm

N_A is Avogadro's number (6.022 x 10^23 atoms/mol)

We know that z = 4 for an fcc crystal, M = 106.42 g/mol for palladium, and a = 2(138 pm)/10^-12 = 1.422 Å = 1.422 x 10^-8 cm.

Plugging these values into the equation, we get:

ρ = (4 * 106.42 g/mol) / (1.422 x 10^-8 cm)^3 * 6.022 x 10^23 atoms/mol) = 11.9 g/cm^3

Therefore, the identity of the metal is palladium.

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Answer: False

Explanation: Gaining an electron which has a negative charge results in an overall negative charge, thus making this an anion, and the answer, false.

Answer:false

Explanation:it becomes a anion

Answer:

a difference in attitude

Explanation:

It's just not science. ... The big difference Popper identifies between science and pseudo-science is a difference in attitude. While a pseudo-science is set up to look for evidence that supports its claims, Popper says, a science is set up to challenge its claims and look for evidence that might prove it false.

The vapοr pressure οf the sοlutiοn at 310 K is apprοximately 46.57 tοrr.

Tο calculate the vapοr pressure οf the sοlutiοn, we need tο determine the mοle fractiοn οf water (sοlvent) and sucrοse (sοlute) in the sοlutiοn.

Mοles οf water:

mοlar mass οf water (H₂O) = 18.015 g/mοl

mοles οf water = mass οf water / mοlar mass οf water

mοles οf water = 170 g / 18.015 g/mοl = 9.438 mοl

Mοles οf sucrοse:

mοlar mass οf sucrοse (C₁₂H₂₂O₁₁) = 342.296 g/mοl

mοles οf sucrοse = mass οf sucrοse / mοlar mass οf sucrοse

mοles οf sucrοse = 38.2 g / 342.296 g/mοl = 0.1116 mοl

Next, we can calculate the mοle fractiοn οf water and sucrοse:

Mοle fractiοn οf water (Xᵢ):

Xᵢ = mοles οf water / (mοles οf water + mοles οf sucrοse)

Xᵢ = 9.438 mοl / (9.438 mοl + 0.1116 mοl) = 0.9881

Mοle fractiοn οf sucrοse (X₂):

X₂ = mοles οf sucrοse / (mοles οf water + mοles οf sucrοse)

X₂ = 0.1116 mοl / (9.438 mοl + 0.1116 mοl) = 0.0119

Nοw we can use Raοult's law tο calculate the vapοr pressure οf the sοlutiοn:

P = Xᵢ * Pᵢ

where P is the vapοr pressure οf the sοlutiοn and Pᵢ is the vapοr pressure οf the pure cοmpοnent (water).

Substituting the values:

P = Xᵢ * Pᵢ

P = 0.9881 * 47.08 tοrr

P = 46.57 tοrr

Therefοre, the vapοr pressure οf the sοlutiοn at 310 K is apprοximately 46.57 tοrr.

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Hence, the probability that the mean cholesterol level of the sample will be greater than 217 is 0.034. Answer: 0.034.According to the given statement, we have the following data.

mean (μ) = 205 mg/dLstandard deviation

(σ) = 35 mg/dLsample size

(n) = 46(a) Probability that the mean cholesterol level of the sample will be no more than 205.To find this, we will use the z-score formula.z

= (x - μ) / (σ/√n)Here,

x = 205

μ = 205

σ =

35n

= 46Plugging in these values, we get,

z = (205 - 205) / (35/√46)

z = 0Hence, the probability that the mean cholesterol level of the sample will be no more than 205 is 0.5. Answer: 0.5

(b) Probability that the mean cholesterol level of the sample will be between 200 and 210:

To find this, we need to standardize the values and use the z-table.P(z < (210 - 205) / (35/√46)) - P(z < (200 - 205) / (35/√46))P(z < 1.65) - P(z < -1.65) = 0.4495 - 0.0505

= 0.3990Hence, the probability that the mean cholesterol level of the sample will be between 200 and 210 is 0.3990. Answer: 0.3990

(c) Probability that the mean cholesterol level of the sample will be less than 195: To find this, we need to standardize the values and use the z-table.P(z < (195 - 205) / (35/√46))P(z < -2.91) = 0.002Hence, the probability that the mean cholesterol level of the sample will be less than 195 is 0.002. Answer: 0.002

(d) Probability that the mean cholesterol level of the sample will be greater than 217: To find this, we need to standardize the values and use the z-table.P(z > (217 - 205) / (35/√46))P(z > 1.82) = 0.034 Answer: 0.034.

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Answer:

activation energy

Explanation:

dont really have an explanation but there's an image attached.

Answer:

C, Si, Al

Explanation:

We use periodic trends to help us find the atomic radii. The trend for atomic radii on the Periodic Table of Elements is down and to the left. So whichever elements are furthest to the left and farthest down have the largest atomic radii.

The theoretical yield for the mass of ATP in this reaction is 264.57 grams.

The balanced equation tells us that for every 1 mole of glucose consumed, 6 moles of oxygen are required to produce ATP. Therefore, the number of moles of glucose required can be calculated as:

moles of glucose = 1/6 x moles of oxygen = 1/6 x 3.13 = 0.522 moles of glucose

Now that we know the number of moles of glucose that are required, we can calculate the theoretical yield for the mass of ATP using the following equation:

theoretical yield for mass of ATP = moles of glucose x molar mass of ATP

theoretical yield for mass of ATP = 0.522 moles x 507.18 g/mol = 264.57 grams of ATP

Therefore, the theoretical yield for the mass of ATP in this reaction is 264.57 grams.

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Answer:

the group 0 elements, the noble glass. are all unreactive ,non-metal gases . they show trends in their physical properties.

Explanation:

their uses depend on their inertness.

Answer:

because if the internet or electronics would go boom boom, then that would be our lifeline to save our important things.

Explanation:

The final pH of the solution after adding 0.1 moles of acetic acid to 1 liter of water is 1. To determine the final pH of a solution after adding acetic acid, we need to consider the dissociation of acetic acid (CH3COOH) in water.

Acetic acid is a weak acid, and it partially dissociates into its conjugate base, acetate ion (CH3COO-), and hydrogen ions (H+). The equilibrium equation for this dissociation is:

CH3COOH ⇌ CH3COO- + H+

The concentration of acetic acid in the solution is 0.1 moles, and the final volume is 1 liter. This gives us a concentration of 0.1 M (moles per liter) for acetic acid.

Since acetic acid is a weak acid, we can assume that the dissociation is incomplete, and we can use the equilibrium expression to calculate the concentration of hydrogen ions (H+) in the solution.

The pH of a solution is defined as the negative logarithm of the hydrogen ion concentration:

pH = -log[H+]

In this case, we need to calculate the concentration of H+ ions resulting from the dissociation of 0.1 moles of acetic acid in 1 liter of water.

Since acetic acid is a weak acid, we can use the approximation that the concentration of H+ ions is approximately equal to the concentration of acetic acid that dissociates. Therefore, the concentration of H+ ions is 0.1 M.

Taking the negative logarithm of 0.1, we find:

pH = -log(0.1) = 1

Therefore, the final pH of the solution after adding 0.1 moles of acetic acid to 1 liter of water is 1.

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The number of atoms of each element present are 1.4 × 10²³ atoms of water, 9.27 × 10²² atoms of carbon dioxide, 1.62 × 10¹⁸ atoms of benzene and 1.36 × 10²⁴ atoms of sucrose.

The mole is an amount unit similar to familiar units like pair, dozen, gross, etc. It provides a specific measure of the number of atoms or molecules in a bulk sample of matter.

A mole is defined as the amount of substance containing the same number of atoms, molecules, ions, etc. as the number of atoms in a sample of pure 12C weighing exactly 12 g.

a. Mass of water = 4.21g

Moles = 4.21 / 18

= 0.233 moles

number of atoms = 6.023 × 10²³ × 0.233

= 1.4 × 10²³ atoms.

b. mass of carbon dioxide = 6.81g

moles = 6.81 / 44

= 0.154 moles

number of atoms = 6.023 × 10²³ × 0.154

= 9.27 × 10²² atoms.

c. mass of benzene = 0.00021g

moles = 0.00021 / 78

= 2.69 × 10⁻⁶ moles

number of atoms = 6.023 × 10²³ × 2.69 × 10⁻⁶

= 1.62 × 10¹⁸ atoms.

d. 2.26 moles

number of atoms = 6.023 × 10²³ × 2.26

= 1.36 × 10²⁴ atoms.

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Answer:

No

Can't understand.

Pls follow me and Mark as brainliest Plsssssssss.

Answer:

this one is a little tricky but i would have to say A. please correct me if im wrong

Explanation:

Answer:

A

Explanation:

Producers are plants while consumers eat other things to get energy, like us