Identify each element as an alkali metal transition metal halogen or noble gas explain your answers
Answers
Based on the properties of the materials as shown on the table we have;
A - halogens
B - Transition metal
C - Noble gas
D - Metal
What is the kind of material?We know that there are different kinds of materials that exists. The kind of materials can be found by the properties of the materials. For the metals, they are highly conducting materials and they are silvery white.
Transition metals, are colored materials and they are not so reactive like we have in the metals. On the other hand, the noble gases, are unreactive and they are colorless gases.
The halogens are always colored gases that are highly reactive and they are not found free in nature because they are very highly reactive.
Thus the materials, halogens, transition metals, noble gases and metals can be identified by the properties of the materials.
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How are the transmission, prevention, and treatment of infectious diseases similar to and different from these processes in other diseases?
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Answer:
Many types of medicine aim to treat a disease or injury rather than prevent it. However, preventive medicine stops the disease before it starts. Infectious diseases are transmitted from person to person by the transmission of pathogens such as bacteria, viruses, fungi or parasites. Non-communicable diseases are not transmitted by pathogens and are caused by several other indirect factors.
fill in the blank question. a(n) equation represents all the soluble ionic compounds as hydrated (aq) ions.
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A(n) total ionic equation represents all the soluble ionic compounds dissociated into ions. both the atoms and the electrical charge must be balanced in the equation.
The total ionic equation include all the ion with spectator ions. total ionic equation contains all the soluble ionic compounds. the net ionic equation only have those species which are taking part in the chemical reaction , excluded the spectator ions. The molecular equation is the balanced chemical equation for the ionic equation.
Thus, A(n) total ionic equation represents all the soluble ionic compounds dissociated into ions. both the atoms and the electrical charge must be balanced in the equation.
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an element conducts electricity, and its oxidation state in ionic compounds is usually . what is the most likely identity of the element?
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Answer:
Copper, silver, aluminum, gold, steel, and brass are common conductors of electricity. The most highly conductive metals are silver, copper, and gold
Explanation:
The most highly conductive metals are silver, copper, and gold.
The elements that conduct electricity, and their oxidation state in ionic compounds. The most likely identity of the element is they are metals.
What are chemical elements?Chemical elements are the pure forms of substances that are present on the earth's surface or crust. There are 180 elements present in a periodic table there, arranged by the rising of their atomic number.
Metals are those elements that are present in the middle of the periodic table. Metals are soft, malleable ductile, and they're used for making many other substances. Metals are good conductors of heat and electricity.
Therefore, the components of ionic compounds that are electrically conductive and their oxidation state. The element's most likely classification is as a metal.
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To find the order of a reaction with respect to one reactant, you will monitor the choose. As the choose. Of choose. Is changed.
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You must keep track of the change in reaction rate as the reactant's concentration is altered in order to determine the order of a reaction with regard to a single reactant.
How can the order of reaction be determined with regard to each reactant?Adding together the individual orders yields the reaction's overall order. The total order is 2, for instance, if the reaction is first order with regard to both A and B (a = 1 and b = 1).
According to the rate law, the exponent raised by the concentration term for each reactant determines the order of a chemical reaction with regard to that reactant. The sum of the exponents raised for the rate law's concentration terms determines the reaction's overall order.
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The small, but important, energy differences between 3s, 3p, and 3d orbitals are due mainly to?.
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The small, but important, energy differences between 3s, 3p, and 3d orbitals are due mainly to Heinsberg uncertainty principle
The s orbital always has a slightly lower energy than p orbital at the same energy level and so the s orbital always fill with electron before the corresponding p orbital do and the position of the 3d orbital and a small but important differenced between these 3s 3p and 3d are due to the Heinsberg uncertainty principle and their principal quantum numbers ones rule and the numbers of weapons that can hold the penetration effect
And the electron in the 3s orbital is more likely to be close to the nucleus than is an electron in 3p orbital and the electron in 3p orbital in turn has a greater probability of being close to the nucleus than does one 3d orbital
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Most of earths volcanoes are formed by a the interaction of continental plates b the melting of ice on continental plates c meteorites that strike continental plates d water evaporating this is earth science
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Most of Earth's volcanoes are formed by the interaction of continental plates.
What is earth sciences?
It is the study of the Earth's structure, properties, processes, and four and a half billion years of biotic evolution.
The movement of faults at plate boundaries can provide a convenient pathway for magma to reach surface. It helps to explain this by looking at three main types of plate boundary:
constructive boundaries (divergent): where plates are moving away from each other as new crust is created between two platesdestructive boundaries (convergent): where plates are moving towards each other and old crust is either dragged down into mantle at a subduction zone or pushed upwards to form mountain rangestransform boundaries (conservative): where plates are moving past each other and crust is neither created nor destroyedConstructive boundaries:
At constructive plate boundaries also known as divergent boundaries, the tectonic plates move away from one another to produce volcanoes. Hot magma rises from mantle at mid-ocean ridges, pushing the plates apartDestructive boundaries:
Volcanoes can form at subduction zones where the tectonic plates are moving towards each other and one plate descends beneath the other
Thus option a is correct answer
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An equilibrium constant of acid-base chemistry that is greater than 1 is recovered from?.
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An equilibrium constant of acid-base chemistry that is greater than 1 is products than reactants at equilibrium.
At equilibrium, the forward and reverse reaction rates are equal, resulting in constant concentrations for all of the chemicals. Given that, it seems sense that the ratio of concentration for any given reaction at equilibrium will always keep a constant value. The ratio of the mathematical product of a reaction's products to that of the concentrations of its reactants is known as the equilibrium constant (Keq). The balanced chemical equation raises each concentration to the power of its corresponding coefficient. K=1 when equilibrium attains.
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What is representation of function example?.
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The collection of atoms connected to that same carbon skeleton that frequently dictate the features of an organic molecule is known as even the functional group throughout organic chemistry.
What does "function group" mean?functional group, every one of the countless atom combinations that make up chemical compounds, undergo distinctive reactions, and frequently have an impact on the overall reactivity of each molecule.
How is a function group determined?Mark all heteroatoms, including halogens, in a molecule. Additionally, highlight these carbon atoms: Atoms joined to any heteroatom by a single or triple bond that is not aromatic. All linked indicated atoms in nonaromatic carbon-carbon maybe double triple bonds combine to form a single FG.
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An object with mass m is attached to the end of a string and is raised vertically at a constant acceleration of g 6. If it has been raised a distance l from rest, how much work has been done by the tension in the string?.
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11/10 MgL work has been done by the tension in the string. If the object has been raised a distance l from rest.
Define work done?The definition of work is expanded so that it encompasses both the forces applied to the body and the overall displacement of the body. A constant force F is present before this block. The objective of this force is to move the body d meters in a straight line in the force's direction.
Given,
Mass of object, M
Acceleration of object, a = g/10
Distance covered vertically, L
Tension of string, T
Work done by tension in string, W
W = T × L
By applying equilibrium force on string,
T - Mg = Ma
g = gravitational acceleration
T - Mg = M (g/10)
T = M(g/10) + Mg
T = 11/10 Mg
By substituting the value in, W = T × L
W = 11/10 Mg × L
W = 11/10 MgL
∴ Work done by tension is 11/10 MgL.
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A 0.9295 g Sample of Cobalt Chloride Hydrate is heated until it reaches a constant mass of 0.5976 g. Assume that only water is removed. Calculate the Percent of water.
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The percent of water in the cobalt chloride hydrate would be 35.71%
Percent compositionThe percent composition of a component in a compound is the mass of that component relative to the mass of the entire compound. This can be mathematically expressed as:
Percent composition = mass of component/mass of compound x 100%
In order to find the percent water composition in the hydrated salt, the mass of water needs to be obtained.
Mass of the hydrated cobalt chloride sample = 0.9295 g
Mass of the cobalt chloride after removing water = 0.5976 g
Mass of water = mass of hydrated salt - mass of anhydrous salt
= 0.9295 - 0.5976
= 0.3319 g
Thus, percent water composition = 0.3319/0.9295 x 100%
= 35.71%
In other words, the percent of water in the cobalt chloride hydrate is 35.71%.
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a buffer is a solution containing a weak acid and its conjugate base or a weak base and its conjugate acid . a buffer solution [ select ] the point at which a buffer can no longer resist changes in ph in the presence of acid or base is called the [ select ] . what is a valid way to make an ammonia/ammonium buffer for use in the laboratory? mix equal volumes of [ select ]
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For the titration between strong acid and weak base equivalence point occurs at ph 6 which is acidic in nature and methyl red is red in pH under 4.4 and yellow in pH over 6.2.
Methyl orange is used as the indication while titrating strong acid and weak base.Methyl Orange is an indicator that's utilized to show where the acid-base titration's equivalence point is.
It turns red in an acidic environment and yellow in a basic one (pH 4.4 and higher).It is made by treating helianthin with sodium hydroxide. Helianthin is produced by mixing N,N-dimethylaniline with diazotized sulphanilic acid.
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Two carbon atoms (group 14) bond with two hydrogen atoms (group 1) to form acetylene (c2h2). How would each carbon atom in acetylene bond?(1 point).
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In acetylene, each carbon atom shares one pair of electrons with one hydrogen atom and three pairs of electrons with the other carbon atom.
A carbon atom has four electrons in its outermost shell and needs four electrons to be stable. In acetylene, two carbon atoms are covalently bonded with three electron pairs and the remaining one electron pair is covalently bonded with two hydrogen atoms.
Thus, both carbon and hydrogen atoms gain stability, so in acetylene each carbon atom shares one pair of electrons with a hydrogen atom and shares three pairs of electrons with another carbon atom.
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