Many earthquakes occur along the edges of continents that surround the Pacific Ocean. This area is called the Pacific Ring of Fire. Why does this region have so many earthquak
O A. The water in the Pacific Ocean is very heavy and pushes down on the Earth.
O B. Landslides are common along the steep Pacific Ocean coastlines.
O C. Plate boundaries occur along the edges of the Pacific Ocean.
OD. Strong typhoons are common in the Pacific Ocean.
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Answer:
c
Explanation:
the plate tectonics collide there a lot
Related Questions
Is it true or false??. . .Help me please
Answers
Answer:
I think the answer is true
Scientists from different fields are trying to understand how the global climate is reacting to the changes caused in nature, and by human activities. They have come up with conflicting interpretations. Which of these is the most likely outcome of differences in interpretations made by scientists on the issue of global climate?
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Answer:
New ideas would be created and tested
Explanation:
All old ideas would be discarded.
Scientific evidence would be weakened.
New ideas would be created and tested.
The limitations of science would be evident.
In science, old ideas are usually improved or modified and not entirely discarded. The old ideas form the basis for new ideas after extensive reviews. Differences in the interpretations made by scientists on any particular phenomenon give rooms for reviews. The reviews often generate new ideas or hypotheses and these can be tested using relevant experimental procedures according to the scientific method.
Hence, the correct answer would be that new ideas would be created and tested.
Describe 3 ways students dispose of garbage at your school
Answers
Answer:
Make Recycle Bins Easily Accessible
Ditch Single-Use Waste
Minimise Paper Waste
Designate a Drawer for Scrap Paper
Eco-Friendly Lunches
The boiling point of water is 100.0*C, yet a student measured it to be 101.3*C. Calculate the percent error of the student's measurement.
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Answer:
Percent error = 1.3%
Explanation:
Given data:
Actual value of boiling point = 100.0 °C
Measured value = 101.3 °C
Percent error = ?
Solution:
Formula:
Percent error = ( Measured value - Actual value / Actual value ) × 100
Now we will put the values in formula.
Percent error = 101.3 °C - 100.0 °C / 100.0 °C × 100
Percent error = 1.3 °C / 100.0 °C × 100
Percent error = 0.013 × 100
Percent error = 1.3%
Thus, percent error is 1.3.
How could the decrease in the alligator population affect the other populations?
Answers
I hope this helps :)
How many electron bonds are shared between tewo carbon atoms when they are joined by a double bond?
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2 electron bonds are shared between two carbon atoms when they are joined by a double bond.
An atom is a particle of matter that uniquely defines a chemical element. Atoms consist of a central nucleus surrounded by one or more negatively charged electrons. The nucleus is positively charged and contains one or more relatively heavy particles known as protons and neutrons.
Atoms are made up of two types of elementary particles: electrons and quarks. Electrons occupy the space surrounding the nucleus. Each electron has a charge of -1. Quarks form protons and neutrons, which form the nucleus. About 99% of the human body is made up of atoms of hydrogen, carbon, nitrogen, and oxygen. It also contains much smaller amounts of other elements necessary for life. November 6, 2015
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Which of the following options correctly describe the preparation of nitriles from alkyl halides? Select all that apply.
A) This reaction proceeds via an SN2 mechanism.
B) The alkyl halide acts as the nucleophile in this reaction.
C) This reaction results in the addition of a two-carbon chain to the alkyl halide.
D) NaCN is a common reagent used in this reaction.
E) Methyl and primary alkyl halides are the best substrates for this type of reaction.
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The preparation of nitriles from alkyl halides are:
This reaction proceeds via an SN₂ mechanism.NaCN is a common reagent used in this reaction.Methyl and primary alkyl halides are the best substrates for this type of reaction. Options A, D and E are correct.When alkyl halides react with NaCN (sodium cyanide) in the presence of a strong base, such as sodium hydroxide (NaOH), they undergo nucleophilic substitution (SN₂) to form nitriles. In the SN₂ mechanism, the nucleophile (CN⁻) attacks the alkyl halide, displacing the halogen atom and forming a new carbon-nitrogen bond.
NaCN is commonly used in this reaction because it provides the cyanide ion (CN⁻) as the nucleophile. The nucleophilic cyanide ion is attracted to the electrophilic carbon in the alkyl halide, facilitating the substitution reaction. Methyl and primary alkyl halides are the most reactive substrates for this reaction. Due to their relatively unhindered nature, they allow for easier access of the nucleophile, resulting in higher yields of the desired nitrile product. Options A, D and E are correct.
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cann u help me with this ASAP
Answers
Answer:
yes and can you help me?
Explanation:
it's saying you need to use information from chapter 14, I don't have that textbook, so I can't exactly do it for you. but find the information on the topic that most interests you in that chapter, break it up in pieces, write out your info in simple terms, and use that to follow the steps you need for the "letter"
Which is an inequality?
A. 1 <4
C. 2 = 1 + 1
O D. 3
Answers
Explanation:
step 1. an inequality has either a <, <=, >=, or a >.
step 2. 1 < 4 is an inequality.
step 3. the answer is A.
At a particular pressure and temperature, nitrogen gas effuses at the rate of 82 ml/s. using the same apparatus at the same temperature and pressure, at what rate will nitrogen dioxide effuse?
Answers
The rate at which the nitrogen dioxide, NO₂ will effuse is 64 mL/s
Graham's law of diffusionThis states that the rate of diffusion of a gas is inversely proportional to the square root of the molar mass i.e
R ∝ 1/ √M
R₁/R₂ = √(M₂/M₁)
Where
R₁ and R₂ are the rates of each gasM₁ and M₂ are the molar mass of each gasHow to determine the rate at which nitrogen dioxide, NO₂ will deffuseRate of N₂ (R₁) = 82 mL/sMolar mass of N₂ (M₁) = 28 g/mol Molar mass of NO₂ (M₂) = 46 g/molRate of NO₂ (R₂) =?Applying the Graham's law of diffusion equation, we have:
R₁/R₂ = √(M₂/M₁)
82 / R₂ = √(46 / 28)
Cross multiply
82 = R₂√(46 / 28)
Divide both sides by √(46 / 28)
R₂ = 82 /√(46 / 28)
R₂ = 64 mL/s
Thus, nitrogen dioxide, NO₂ will effuse at 64 mL/s
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describe the relationship between pressure and temperature
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It is used in the design of engines, where changes in pressure and temperature are used to convert thermal energy into mechanical work. It is also used in meteorology to predict weather patterns and in the study of the Earth's atmosphere.
Pressure and temperature are two fundamental physical quantities that are closely related in many physical processes. Understanding the relationship between these two quantities is essential in many scientific and engineering fields. This relationship can be described by the ideal gas law, which states that the pressure of an ideal gas is directly proportional to its temperature when the volume and number of particles are constant. In other words, when the temperature of a gas increases, its pressure increases, and vice versa. This can be explained by the kinetic theory of gases, which assumes that gases are made up of a large number of small particles that are in constant motion. The speed of these particles is proportional to the temperature of the gas. As the temperature of the gas increases, the particles move faster and collide more frequently with the walls of the container, resulting in an increase in pressure. Similarly, when the temperature of the gas decreases, the particles move slower and collide less frequently with the walls of the container, resulting in a decrease in pressure. This relationship between pressure and temperature is essential in many scientific and engineering applications.
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a liquid mixture of one or more substances that cannot be separated by filtering or allowing the mixture to stand is called a/an:
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A homogeneous mixture, also known as a solution, is a liquid mixture where one or more substances are combined in such a way that they cannot be separated by filtering or allowing the mixture to stand. Unlike heterogeneous mixtures, such as suspensions or colloids, homogeneous mixtures have uniform composition and properties throughout.
The different substances in a homogeneous mixture are evenly distributed at a molecular or atomic level, resulting in a single phase.
This uniform distribution makes it challenging to visually differentiate the individual components of the mixture.
Examples of homogeneous liquid mixtures include saltwater, vinegar, and ethanol-water solutions.
The inability to separate the components of a homogeneous mixture by simple physical means is due to the intimate mixing and molecular interactions between the substances involved.
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Which of the following is not an organ in the nervous system?
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Carmen is heating some water and trying to measure the temperature of water using a celsius thermometer. which measurement can she expect once the water begins to boil? a. 32°c b. 100° cc. 212°c d. 373°c
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Once the water begins to boil, Carmen can expect a measurement of 100°C on the Celsius thermometer. Option b is correct.
At standard atmospheric pressure, water boils at 100°C, which is the boiling point of water. This is the temperature at which water changes from a liquid to a gas (water vapor) as it absorbs heat energy.
Option a (32°C) is the freezing point of water, while option c (212°C) and option d (373°C) are the boiling points of water at different pressure levels. However, at standard atmospheric pressure, the boiling point of water is 100°C. Hence option b is correct choice.
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When balancing chemical equations the left hand side of the equation is known as the ______, while the right hand side is known as the ______.
Answers
Answer:1# reactants 2#coefficient
Explanation:
Why are scientists worried that climate change will cause these toxic algae blooms to become more frequent?
Answers
Answer: Eutrophication is the enhancement of the growth of algae in the water body.
Explanation:
The scientists are worried for the climate change as if the climate changed to prolonged rainy then the frequent raining can remove toxic chemicals from the agricultural sites, landfills, industries, and from other locations and deposit them to the water body (river, lakes, ponds, and others). The deposition of the salts of nitrogen, phosphorus, and sulfur promotes the growth of algae in the water body. This leads to reduction in the concentration of oxygen in the water body. This is called eutrophication. The lack of oxygen can lead to mortality of aquatic animals.
an ionic compound that is neither an acid nor a base is classified as a(n) ___________.
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An ionic compound that is neither an acid nor a base is classified as a salt. Salts are formed when an acid reacts with a base, resulting in the neutralization of their respective acidic and basic properties.
In this reaction, the acid donates a proton (H+) to the base, forming water, while the remaining ions from the acid and base combine to form the salt. Salts are composed of positively charged cations and negatively charged anions. The cation is derived from a base, while the anion is derived from an acid. However, the resulting salt does not exhibit the characteristic properties of either an acid or a base. It does not donate or accept protons in solution, making it neutral in nature. Salts have a wide range of applications, including as flavor enhancers, preservatives, and components in chemical reactions and industrial processes. They can also be found naturally in minerals and are essential for various biological processes in living organisms. In summary, an ionic compound that is neither an acid nor a base is classified as a salt. It is formed through the neutralization reaction between an acid and a base and does not exhibit acidic or basic properties in solution.
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Can radiation take place in solids, liquids, and gasses?
Answers
Answer:
Yes!
Explanation:
Liquids & gases are poor conductors, but they can make heat (thermal energy) travel quickly from one point to another. ... ~ When waves of heat (thermal energy) travel through empty space and transparent mediums, heat transfer by radiation occurs. Solids, liquids, & gases can all be heated by radiation.
Bye Have A Nice Day!
5. The left side of the heart pumps blood to the
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____Na3PO4+____CaCI2 --->____NaCI+ ____Ca(PO4)2
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Answer:
3CaCi2 + 2Na3PO4 → Ca3(PO4)2 + 6NaCi
Explanation:
How do atoms bond in metallic bonding?
Answers
Answer:
the I really don't know sorry:(
choose the net ionic equation for the reaction (if any) that occurs when aqueous solutions of na2co3 and hi are mixed. Group of answer choices2 Na+(aq) + CO32-(aq) + 2 H+(aq) + 2 Cl-(aq) → H2CO3(s) + 2 Na+(aq) + 2 Cl-(aq)2 H+(aq) + CO32-(aq) → H2O(l) + CO2(g)2 Na+(aq) + CO32-(aq) + 2 H+(aq) + 2 Cl-(aq) → H2CO3(s) + 2 NaCl(aq)No reaction occurs.2 H+(aq) + CO32-(aq) → H2CO3(s)
Answers
The correct net ionic equation for the reaction that occurs when aqueous solutions of \(Na_2CO_3\) and HI are mixed is \(2 H+(aq) + CO_{32}-(aq) - > H_2O(l) + CO_2(g).\)
This is because when Na2CO3 and HI are mixed, they undergo a double displacement reaction in which the cations and anions of the two reactants switch places. The products of this reaction are NaI and \(H_2CO_3\). However, \(H_2CO_3\) is unstable and quickly decomposes into \(H_2O\) and CO2. Therefore, the net ionic equation for this reaction only includes the ions that are involved in the formation of the products, \(H_2O\) and \(CO_2\), and not the spectator ions, Na+ and I-, which do not participate in the reaction.
The net ionic equation for this reaction can be written as:
\(2 H+(aq) + CO_{32}-(aq) - > H_2O(l) + CO_2(g)\)
This equation shows that two hydrogen ions and one carbonate ion react to form one molecule of water and one molecule of carbon dioxide.
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why do we not do a melting point directly on camphor to assess its purity?
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Camphor get sublimated when it is getting in contact into heat that is why we do not do a melting point on it.
Camphor isn't a suitable emulsion for determining its chastity by melting point because it has a fairly broad melting range and a high degree of sublimation, which can make it delicate to gain accurate and reproducible melting point data. Camphor has a melting point range of roughly 175- 180 °C, which is fairly broad compared to numerous other organic composites. This broad melting range can make it delicate to determine the precise melting point of camphor, which can affect the delicacy of assessing its chastity.
In addition, camphor has a high degree of sublimation, meaning it can decimate directly from its solid form to its gas phase without going through a liquid phase. This can beget crimes in determining the melting point because the sublimation of camphor can affect the appearance of the sample, similar as the conformation of recesses or craters on the face, which can make it delicate to directly determine the melting point.
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Element
lon Charge
Nearest Noble Gas
Na
+1
What is the nearest noble gas to sodium?
Answers
what is the device that most famously is used to find the molecular weight of a compound?
Answers
The device that is most famously used to find the molecular weight of a compound is a mass spectrometer.
A mass spectrometer is an analytical instrument that is used to measure the mass-to-charge ratio of charged particles. It works by ionizing a sample of the compound, accelerating the ions, and then measuring their masses using a magnetic or an electric field. The resulting mass spectrum can be used to determine the molecular weight of the compound, as well as its elemental composition and isotopic distribution. Mass spectrometry is widely used in chemistry, biochemistry, and other fields to identify and quantify molecules, and it is considered one of the most accurate and precise methods for determining molecular weight.
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Word Bank:
amount
atomic mass
atomic mass
atomic mass
atomic number
name
charge
electrons
neutrons
nucleus
protons
same
The number of protons in one atom of an element determines the atom’s _________________, and the number of electrons determines the _________________________ of the element.
The atomic number tells you the number of ___________________________ in one atom of an element. It also tells you the number of __________________________ in a neutral atom of that element. The atomic number gives the “identity” of an element as well as its location on the periodic table. No two different elements will have the ____________________ atomic number.
The ______________________ of an element is the average mass of an element’s naturally occurring atom, or isotopes, taking into account the ____________________ of each isotope.
The _______________________ of an element is the total number of protons and neutrons in the ___________________ of the atom.
The atomic mass is used to calculate the number of ______________________ in one atom of an element. In order to calculate the number of neutrons you must subtract the ______________________ from the ______________________.
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Answer:
name,atomic mass,electrons,protons,same,charge,amount,atomic mass,charge,neutrons,atomic number,atomic mass
What is the compound name for Bel?
Answers
Two people are pulling on a rope, like in the picture below. The person on the left pulls at 5 N and the person on the right pulls 5 N. What is the net force on the rope?
Answers
Answer:
The net force is 0
Explanation:
because both people on either side are pulling the rope with the same force
Which element will gain only one electron during a chemical reaction?
1. nitrogen
2.chlorine
3.carbon
4.oxygen
Answers
Answer:
nitrogenExplanation:
SANA PO MAKATULONG PO YUNG SAGOT NA BINIGAY KO
What is the relation between amino acids and polypeptide?
Answers
The relation between amino acids and polypeptide is that amino acid is monomer and polypeptide is polymer.
A member of the class of organic molecules known as amino acids, each of which is made up of a special organic R group, an acidic carboxyl group (COOH), a basic amino group (NH2), and an amino group (NH2) (or side chain). Alpha-amino [alpha-amino] carboxylic acid is the colloquial term for an amino acid. Every molecule has a central carbon (C), also known as the -carbon, that is attached to an amino group and a carboxyl group. Typically, a hydrogen (H) atom and a R group are used to fill the final two bonds of the -carbon atom. Standard (or common) amino acids can be divided into groups according to the polarity (i.e., the distribution of electric charge) of the R group (e.g., side chain).
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