Write a short note on biologicalrelevanceof sodiumand calcium

Q: 75 ALhe chooy deced to I Mm Crbon (NCO oesampled water in the school takin onder to restore e…

A: Question 7.3.1 cannot be answered as nowhere in the question it has been mentioned that how much HCl…

Q: give the cause of lanthanide contraction.

A: The long form of the periodic table is a tabular arrangement of all known elements. Here the…

Q: C Metallic Tanta C The Substance C The Substance C The Substance C Which Of The C Get Homewor O 8…

A: PNI2 is made of phosphorus nitrogen, iodide compound.

Q: What is the role of deuterium?

A: The role of deuterium has to be given.

Q: f Cl, and SiBr, were both liquids a 4

A:

Q: Why are sodium and lithium typically analyzed by atomic emission while transition metals such as…

A:

Q: okmarks People Tab Window Help OWLV2 | Online teaching and Ix…

A: Since from the reaction we can say that the moles of Cu(NO3)2 and NO formed will be in the ratio of…

Q: what are the consequences of lanthanide contraction?

A: Generally, as we move down the periodic table, there is an increase in atomic radii. But in the…

Q: Write the chemistry of the reaction of Cr (VI) with formic acid in the presence of PdNPs.

A: Cr(VI) is a major pollutant in a waste water. Formic acid converts Cr(VI) to Cr(III). Here Pd…

Q: 7.125 To prevent the formation of oxides, peroxides, andsuperoxides, alkali metals are sometimes…

A: Lithium shows anomalous behaviour in the first group of alkali metals because of its small size,…

Q: Which oxide, CrO3 or CrO, is more acidic in water? Why?

A: To determine the nature of oxide whether it is acidic or basic, we have a general observation that…

Q: Why is titanium metal called as strategic metal? Mention two of its properties which makes it so…

A: Titanium is called strategic metal because it is used for making certain war equipments.   The…

Q: Explain (with the aid of one or more equations) why a sodium ISE is more sensitive than a calcium…

A: Ion selective electrode (ISE) is used to identify the activity of ions in aqueous solution by…

Q: Rank the following oxides in order of increasing acidity inwater: Sb₂O₃, Bi₂O₃, P₄O₁₀, Sb₂O₅.

A: The acidic strength of an oxide increases with the increase in oxidation state of central atom in…

Q: Write a short note on biological relevance of sodium and calcium

A: The biological relevance of SODIUM: Sodium is found mainly in blood plasma and in the fluid that…

Q: State reasons for the following observations: (i) The enthalpies of atomisation of transition…

A: Transition elements have high effective nuclear charge and a large number of valence electrons.…

Q: Write the equation for the reaction of Pb2 with CrO42-.

A: The reaction between Pb+2 and CrO4-2 is a precipitation reaction.

Q: How would you account for the following :(i) Among lanthanoids, Ln (III) compounds are predominant.…

A: Most common oxidation state of Lanthanoids = +3

Q: Which of the following classifications are the most accurate? Select one: O a. Ce, Eu, Gd, Er: inner…

A:

Q: A synchrotron is an extremely powerful source of X-rays. The X-rays also can be geerated by…

A: Synchroton is powerful Source for generating xray.Xray are produced by high energy electron.

Q: Considering the bonding properties of the basic oxide reacting with the acid and the acid oxide…

A: The compounds in which the oxygen exists in the -2 oxidation state are termed as oxides. The…

Q: What structural feature is characteristic of a chelate?

A:

Q: 214 82 -->

A:

Q: 7.9 Which of the following oxides are likely to be acidic, basic or amphoteric in aqueous solution:…

A:

Q: Explain the Shielding and Deshielding Effects ?

A: When the hydrogen atom is surrounded by higher electron density it creates greater opposition to…

Q: enow.com/ilrn/takeAssignment/takeCovalentActivity.do?locatorwassignment-take nd 10 Magnesium metal…

A: Answer : C. Magnesium burns in air.  because Malleability and ponded into narrow ribbons are the…

Q: 2. Explain physically why Tin oxide (SnO) is transparent in the visible region. Hint: E, i i for…

A: Tin oxide is usually used to make semiconductor devices because it is transparent in visible region.…

Q: 26. Which of the following oxides is amphoteric in character? (a) CO2 (b) SiO2 (c) SnOz2 (d) Ca0

A: Amphoteric oxides are the oxides which can react both with acid as well as the base to produce salt…

Q: Explain the importance and applications ofshape memory alloys

A: Shape memory alloys are those alloys which can be deformed on cooling but return back into their…

Q: Provide two reactions for rubidium which are of high importance. They could be reactions of wide…

A: Imoprtant reactions of rubidium: Rubidium (Rb), a element of Group 1 in the periodic table, an…

Q: Calculate the number of vacancies per cubic meter in iron at 850°C. The energy for vacancy formation…

A: Given: T = (850 + 273) K = 1123 K A = 55.85 g/mol formation energy, Qv = 1.08 eV/atom ρ = 7.65 g/cm3…

Q: Which of the following statement(s) is (are) true regarding hydroxyapatite (HA)? In orthopedic…

A: 1. Hydroxyapetite is primary inorganic ingradient of natural bone.Developing hydroxyapetite coating…

Q: Briefly discuss the following a) The structures and mode of action of anticancer platinum compounds…

A: Anticancer platinum compound: * Platinum exists primarily in either a 2+ or 4+ oxidation state.…

Q: deltaHorxn = -7.83 kJ mol-1 K, was measured to be 2.6 × 104 at 150K. what is Temperature(Kelvin)…

A: Equilibrium constant is directly proportional to temperature

Q: Describe how magnetism in lanthanides series arises

A: Instead making this explanation complex let me explain you in very simple language. As we know that…

Q: Investingate and report the uses of ferromagnetic oxides in magnetic recording tapes

A: Recording tapes have a thin plastic base material and this base have a coating of ferric oxide…

Q: Which set contains an acidic oxide, an amphoteric oxide, and a basic oxide, arranged in that order.…

A: Acidic oxides are oxides that dissolves in water to form acids Basic oxide are oxide that reacts…

Q: How would you account for the following: (i) Among lanthanoids, Ln(III) compounds are predominant.…

A: To find: How will account for the given statements.

Q: What is the electron configuration of Protactinium (Pa) with steps?

A:

Q: Write balanced equations for the following reactions chromium(III) oxide with dilute…

A:

Q: If we had potassium vapor lamps, what color would they be?

A: The potassium vapor lamp produces bright  fluorescence.

Q: List the acidity strengths of Li+, Fe3+, Na+, Mn2+, Ca2+, Al3+, and Sr2+ ions in order in the…

A:

Q: Calcium is required for?

A: Calcium is an alkaline earth metal with an atomic number of 40. It is a soft metal and appears…

Q: hich of the following is diamagnetic? Use figure 14.41 in your book.

A:

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.