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Q: which or the following represents auidic fu leiion. A) NaVa = Nbb R) NoVa > NgUb c) pH= 9 D) Ngub)…

A: The options given are,

Q: Is Au the symbol for gold?

A: Aurum is tge latin word for gold.

Q: e mass o

A:

Q: If the mass # is 85 and the # of neutrons is 47, what is the atomic symbol and the # of protons ?

A: All matter is made up of atoms, and all atoms are made up of three main particles: protons,…

Q: Fill in the blanks by writing the name of the definition: is a substance made up of only a single…

A: an element is a substance that cannot be broken down into any other substance every element is made…

Q: HNO3 NBS H,SO4 light AICI3 Fe HCI

A: Chemical reaction:

Q: 8.2 °C to 34.5 °C? (The

A: Here mass in kg, so first converted mass kg to g  mass = 6.98 kg  [ 1kg = 10^3 g ]  mass = 6.98 •…

Q: :CI: O :CI:

A: Tertiary (3°) carbocation is more stable than secondary (2°) carbocation which is more stable than…

Q: laanpi he cheinl centrn u RoS %23 H.

A:

Q: 7 1 5.3Li +1H → 2 He+ O a. He O b. 2, 1H O C. 3 O On d. 4 4Be

A: A radioactive reaction can be balanced by summing up the atomic number and mass number on both sides…

Q: Which of the following elements are metals? C Ca Br Co Ni Ar Li Al O ?

A: Metal are electropositive in nature  Metals are have less electronegativity  In periods from left to…

Q: In the symbol below, x is, A the mass number B the number of electrons the number of neutrons D the…

A: Mass number is the total of number number of protons and neutrons in an atom. Atomic number…

Q: The elemental symbols for an element are O 1or 2 letter symbols with the 1s* letter upper case and…

A: Each element has unique symbols.

Q: Which of the following is part O glass collection tubes a power source thormo meter

A: Hofmann apparatus used for  electrolysing  water and  it is invented  by August  Wilhelm Von…

Q: Which pair of statements about mass is true? O A. After a physical change the total mass is the…

A: The pair of statements about mass is true has to be given,

Q: + 2n + 240 96 (a) 235U + in 137 54 92 12. (c) {He + 2§Mo + }H– (b) 232Th + ộn+ 2Cm 6 961 42- 90 100…

A: For balancing of nuclear reaction sum of mass numbers and atomic number must be same on both…

Q: (1.3)(Question 42 on page 40) Which of the following represent(s)' homogeneous mixture'? (b) (c) O…

A: In a mixture in where the components of that particular mixture are uniformly distributed throughout…

Q: What is the symbol for neon?

A: Neon is a Nobel gas element. It's atomic number is 10. It is a colourless and orderless monoatomic…

Q: 'wrले लबकेबै (लि मुरकतकी कल् उ.।13 तकe्य ्भी काटोरे निवाण्र (ए Wान्न कन कर लाck्ये इर--8 s8. 698ाm

A: Answer: Given data: Moles of Nickel n=3.13mol Molar mass of Nickel M=58.69g/mol

Q: 1. What did Democritus contribute to our modern understanding of matter

A: ANSERE IS DISCUSSED BELOW :

Q: What is the law of conservation of mass? Mulrple Choice Mass can nevet be chancged to energY Gravity…

A:

Q: According to the Greek philosopher Aristotle in 350 B.C., what five basic elements composed…

A: According to Aristotle, the Greek philosopher the five different basic elements that composed…

Q: MCQ 25: Fireworks release energy in the form of A. heat B. light C. sound D. all of above

A: We know that,. Firework happen then three phenomena appear, 1)Heat 2)Light 3)Sound

Q: For what type(s) of compound do we use Roman numerals inthe name?

A: Roman Numerals A system of number representation that was discovered many years ago in Rome used…

Q: Provide the atomic symbol for each of the following elements: (a) calcium, (b) carbon, (c) hydrogen,…

A: Atomic symbol of an element is an abbreviation which is used to represent it and generally consists…

Q: What elemnet is this according to the clue: It has chemical properties like carbon but 1 more shell…

A: Chemical properties of any element depends upon the type of electronic arrangement in its valence…

Q: 1.16 Give the chemical symbol or name for each of the followingelements, as appropriate: (a) carbon,…

A: Chemical symbol is the short notation given for an element.

Q: 32 Which element does X represent in the following expression: X? 15 Enter the chemical symbol of…

A:

Q: cess silvér ñiti mass of Cl an

A:

Q: This picture represents a a. mixture of elements. b. a compound. Oc chemically bonded elements. O d.…

A: 11. An element is a substance that consists of atoms of same kind.They are the pure form of a…

Q: Three sceintists that particpated in the discovery and invention or contributed to the early atomic…

A:

Q: The atomic weight of silicon is 28.0855. Round this to 4 significant figures.

A: Given :- atomic wt. of Si = 28.0855  To determine :- given atomic wt. in 4 sig. figs

Q: A certain compound is made up of one carbon (C) atom, two chlorine (CI) atoms, and one oxygen (O)…

A: A compound has one carbon (C) atom, two chlorine (Cl) atoms and one oxygen (O) atom.

Q: thlon lit ctall ) True

A: Answer :             Option b is correct option. It is a False statement.

Q: he mass o

A:

Q: 1- Wrik down Hhe physical preperhes of metals.

A:

Q: Malachite is an are of:(a) Iron(b) Copper (c) Mercury(d) Zinc

A: The solid material that occurs naturally on the earth and contains minerals or metals which are…

Q: j. 1630 + 1630 → k. 6228NI + 'on →. I. + *2He → 63 29Cu + °1B

A: The given equations have to be complete,

Q: 3235 92U > 234 90TH + 4 2HE2+ (a) -- true False

A: Alpha decay: In alpha decay a radioactive nucleus disintegrates by ejecting an particle. In alpha…

Q: A neutron star has a density of 5.0 x 1017 kg/m3. How many ?μL of space would 5.0x106 metric tons…

A:

Q: Earth’s surface area is 5.10x10^8km², and its crust has amean thickness of 35 km and mean density…

A: Determine the volume of crust and total mass of crust of earth in metric tons using its density.…

Q: lon Nat Ca2+ Fe2+ Al³+ 02- Na20 NO so AsO

A: An ionic compound can be defined as combination of positively charged ion and negatively charged…