Convection refers to the movement of heat through a fluid, such as water. Which best describes one way that convection
influences the circulation of ocean water?
Cold water at the surface flows toward the poles and sinks as it cools.
Deep, warm water flows toward the equator and rises as it cools.
Warm water at the surface flows toward the poles and sinks as it cools.
Deep, cold water flows toward the equator and rises as it cools,

help me please

Answer:

a ruler or measuring cups are ways of measuring

Explanation:

Answer:

Explanation:

Strictly speaking, the ruler is the instrument used to rule straight lines and the calibrated instrument used for determining length is called a measure, however common usage calls both instruments rulers and the special name straightedge is used for an unmarked rule.

Answer:

Answer:

You will use the volume and known concentration of the titrant to calculate the number of moles needed to titrate a sample of unknown concentration

When comparing two soils, the one with the greater chemically reactivity would likely also have the larger active SOC pool.

The four major components of soil are shown: inorganic minerals, organic matter, water, and air. The amount of each of the four major components of soil depends on the quantity of vegetation, soil compaction, and water present in the soil. Chemically, soil organic matter affects the cation exchange capacity, provides nutrients, and affects the capacity for buffering changes in soil pH. These in turn affect the fate and transport of chemicals including nutrients and pollutants.

Thus, when comparing two soils, the one with the greater chemically reactivity would likely also have the larger active SOC pool.

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Answer:

23205 J or 2.37 × 10⁴ J or 23.7 kJ

Explanation:

The amount of heat required to change the temperature of a substance can be calculated using the formula: q = mcΔT, where q is the heat added, m is the mass of the substance, c is its specific heat capacity, and ΔT is the change in temperature.

The specific heat capacity of iron is 0.44 J/g K1. So, to raise the temperature of 235 g of iron from 25.0°C to 250.0°C (a change of 225°C), you would need to add:

q = (235 g) × (0.44 J/g K) × (225 K) = 23205 J

So you would need to add 23205 joules of heat to raise the temperature of 235 g of iron from 25.0°C to 250.0°C.

Answer:

11 grams of atoms are in 0.35 moles of oxygen.

Answer:

A Parasite.

Explanation:

Viruses and bacteria can survive in most areas without a host. Parasites however need a host to survive. Some parasites include: tapeworm, roundworms, flukes, and protozoa.

Answer:

Cell growth usually refers to cell proliferation, the increase in cell numbers that occurs through repeated cell division. Cell growth can also refer to the enlargement of cell volume, which can take place in the absence of cell division. As living things grow, some cells die or become damaged and need replacements. Some single-celled organisms use a type of mitosis as their only form of reproduction. In multicellular organisms, cell division allows individuals to grow and change by expanding the number of total cells.

Hope this helps!!!

The word "symptom" refers to a specific manifestation or indication of a condition, disease, or disorder that is experienced or observed by an individual.

Symptoms are subjective or objective changes in the body's normal functioning that may be recognized as abnormal, uncomfortable, or problematic. Symptoms can manifest in various ways depending on the nature of the underlying condition. They can be physical, such as pain, rash, cough, fever, or fatigue, indicating an illness or injury affecting the body. Symptoms can also be psychological, such as anxiety, depression, or confusion, reflecting disturbances in mental health.

Symptoms serve as important clues for medical professionals to identify and diagnose diseases or disorders. They provide valuable information about the nature, severity, and progression of an illness, helping healthcare providers formulate appropriate treatment plans. Additionally, symptoms may also be important for individuals to self-assess their own health status and seek appropriate medical attention.

It is essential to note that symptoms alone may not provide a definitive diagnosis, as they can overlap across different conditions. Further evaluation, including medical tests and examinations, is often necessary to confirm a diagnosis and determine the appropriate course of action.

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Answer:

0.000183 nK

Conversion ^

The half-life of Po-210 is 140 days. If the initial mass of the sample is 5 kg, 3.5g will remain after 280 days.

Chemical kinetics is a subfield of physical chemistry that studies the speeds of chemical processes. The rate of the reaction may be used to classify it as quick, moderate, or sluggish. Reaction mechanism also enables us to study the effects of temperature and catalyst on reaction rate and rate constant. It informs us about reaction processes and enables us to apply particular rate constants to certain mechanistic stages.

The rate law for first order kinetics is

K=(2.303/T)×log(a/a-x)

half life=0.693/K

Where

k - rate constant

t - time passed by the sample

a - initial amount of the reactant

a-x - amount left after the decay process

K=0.693/half life

K=0.693/140

=0.086

0.086=(2.303/ 280)×log( 5 /a-x)

0.086=0.07×log( 136/a-x)

1.22=log( 136/a-x)

136/a-x=16.5

a-x=3.5g

Therefore, 3.5g will be left after 280 days.

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Answer:

The  correct option is  c

Explanation:

The chemical equation for the reaction of  Z-4,5-dimethyloct-4-ene and HCl is shown on the first uploaded image

Now looking at the product we see that there are two who has four different groups attached to them this carbon are known as chiral carbons hence the product formed is a pair of diastereomers

917Kg/m³ is the density of 50,000 m³ iceberg of mass of 45,850,000kg. Grams per cubic centimeter are a typical unit of measurement for density.

Density is the mass of a specific material per unit volume. d = M/V, in which d is density, M is weight, and V is volume, is the formula for density. Grams per cubic centimeter are a typical unit of measurement for density. For instance, whereas Earth has a density of 5.51 grams per square centimeter, water has a density of 1 gram per cubic centimeter.

Another way to state density is in kilograms per cubic meter. For instance, air weighs 1.2 pounds per cubic metre. In textbooks and manuals, the densities of typical solids, liquids, as well as gases are stated.

density= mass/ volume

         = 45,850,000 /50,000

         = 917Kg/m³

Therefore, 917Kg/m³ is the density of 50,000 m³ iceberg of mass of 45,850,000kg.

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Answer:

Following are the response to the given question:

Explanation:

In the given scenario, When the balance has never been tainted before the KHP is weighted, which can affect the molar concentration of NaOH because its molarity is directly proportional to the weight including its substance. In this question it is the mistake is systemic because it may be corrected by modifying balancing parameters.

Answer:

Explanation:

The relation between average velocity of a gas molecules and its molecular mass is as follows .

average velocity v

\(v = k \sqrt{\frac{1}{M} }\) where k is a constant .

If v₁ and v₂ be the velocities corresponding to molecular masses 349 and 352 .

\(\frac{v_1}{v_2 } = \sqrt{\frac{M_2}{M_1} }\)

\(\frac{v_1}{v_2 } = \sqrt{\frac{352}{349} }\)

= 1.004

To solve this we must know the concept of metallic bonding. Metallic bonding is formed by metals. metals have high electrical conductivity and high melting and boiling point due to metallic bonding.

Metallic bonding is a type of chemical bonding that rises from the electrostatic attractive force between conduction electrons and positively charged metal ions.

As Metallic bonding is very strong bonding therefore melting and boiling point of metals are very high as large amount of heat is required to break the strong electrostatic attractive force between conduction electrons and positively charged metal ions. As metals have already free electrons, they can easy conduct electricity.

Therefore, metals have high electrical conductivity and high melting and boiling point due to metallic bonding.

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The molecule or ion that is being oxidized in the reaction is TeO2. Ceramics may occasionally be colored using tellurium dioxide.

TeO2 is soluble in strong acids, alkali metal hydroxides, and only very little water. Due to its amphoteric nature, it can operate as either an acid or a base depending on the solution it is in. It interacts with bases to form tellurites and acids to create tellurium salts.

Due to the presence of 6 e-pairs surrounding the center atom, 6 atoms bound to it, and 0 lone pairs, this molecule is octahedral.

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The complete question is:

A sample of ore containing the mineral tellurite, TeO2 , was dissolved in acid. The resulting solution was then

reacted with a solution of K2Cr2O7 to form telluric acid, H2TeO4 . The unbalanced chemical equation for the

reaction is given below.

. . . TeO2(s) + . . . Cr2O72−(aq) + . . . H+(aq) → . . . H2TeO4(aq) + . . . Cr3+(aq) + . . . H2O(l)

(a) Identify the molecule or ion that is being oxidized in the reaction.

Answer:

The nucleus represents a major evolutionary transition. As a consequence of separating translation from transcription many new functions arose, which likely contributed to the remarkable success of eukaryotic cells. Here we will consider what has recently emerged on the evolutionary histories of several key aspects of nuclear biology; the nuclear pore complex, the lamina, centrosomes and evidence for prokaryotic origins of relevant players.

Answer:

4909 miles per hour

Explanation:

7900 kilometers converted into miles is 4909

Answer:

See Explanation

Explanation:

The ionic compounds are; MnSO4 and LiF

The covalent compounds are; CH3NH2, PCl5 and O2

1) The formulas of the ions are;

MnSO4  - Mn^2+ SO4^2-

LiF - Li^+ F^-

The structure of each of the three covalent molecules is shown in the images attached to this answer.

2) CH3NH2 - Has a tetrahedral molecular geometry and electronic geometry

PCl5 - Has a trigonal bipyramidal molecular geometry and electronic geometry

O2 - Has a linear molecular geometry and electronic geometry.

3) CH3NH2  is sp3 hybridized

PCl5 is sp3d hybridized

O2 - is sp2 hybridized

4) MnSO4  - Manganese  II sulphate

PCl5 - Phosphorus pentachloride

O2 - Oxygen molecule

LiF- Lithium fluoride

5) PCl5 - Five sigma bonds and no pi bond

CH3NH2 - 6 sigma bonds and no pi bond

O2 - 1 sigma bond and 1 pi bond

The balanced equation for the reaction of acetylene (C₂H₂) and oxygen (O₂) is; 2 C₂H₂(g) + 5 O₂(g) → 4 CO₂(g) + 2 H₂O(g) + heat

The coefficients in the balanced equation represent the stoichiometric ratio of the reactants and products in the chemical reaction. In this case, 2 molecules of acetylene (C₂H₂) react with 5 molecules of oxygen (O₂) to produce 4 molecules of carbon dioxide (CO₂) and 2 molecules of water (H₂O), along with the release of heat.

The balanced equation shows that the number of atoms of each element is the same on both the sides of the equation, in accordance with the law of conservation of mass.

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Answer:

Explanation:

aluminum

Answer: The aluminum ion

Explanation:

Answer:

rise your words, not your voice rain grows flowers thunder does not.

Explanation:

off the top of my head

Answer:

Empirical evidence for a proposition is evidence, i.e. what supports or counters this proposition, that is constituted by or accessible to sense experience or experimental procedure. Empirical evidence is of central importance to the sciences and plays a role in various other fields, like epistemology and law.

Explanation:

thanks me later

Answer:

Brainliest pls

Explanation:

activation energy, in chemistry, is the minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo a chemical transformation or physical transport.

They are described as promissory notes that guarantee the unalienable rights of life, liberty, and the pursuit of happiness.

Claim 1 is that the Constitution and the Declaration of Independence give equal rights to all Americans. The evidence for this claim is found in the article of the Declaration of Independence.

Claim 2 is that America has failed to deliver these rights to black people. The evidence for this is found in the speech "I Have a Dream" by Martin Luther King Jr.

The Constitution and Declaration of Independence are described as promissory notes that guarantee the unalienable rights of life, liberty, and the pursuit of happiness.

Following are the Claims and Evidence:

Claim 1: All Americans, not only whites, are guaranteed equal rights under the Constitution and the Declaration of Independence.

The Declaration of Independence has supporting evidence for Claim 1.

Claim 2: The United States has failed to grant black people the rights outlined in the Constitution and Declaration of Independence.

Martin Luther King Jr.'s "I Have a Dream" speech serves as proof for Claim 2.

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The quantum numbers for the very last electron in Cadmium (Cd) atom is  (5, 0, 0, ±¹/₂) for the four quantum numbers.

Quantum numbers are the set of numbers used to express the location and energy of an electron in an atom.

There are four quantum numbers used to describe the location and energy of an electron in an atom, and they are:

The electronic configuration of cadmium is  [Kr]4d¹⁰5s².

Hence, cadmium belongs to period 5 of the periodic table, and the last electron occupies the 5s orbital.

The l value of the s orbital is 0, and mi is 0 as well.

The value of ms is ±¹/₂.

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Answer:

   A + B = AB is an example of a synthesis reaction

Explanation: