The distance between two atoms was determined to be 11.4 nm. What is this distance in centimetres? 0.000000114 cm 1.14 x 10-11 cm O 11. 4 x 107 cm 114 cm O 1.14 x 10-6 cm O O O

Q: 1. Platinum ( pt) a. Write the physical and chemical properties of the element above. b. Write the…

A: Please find your solution below :  a. Physical properties : Atomic number = 78 Atomic mass =…

Q: Calculate the mass of 9.80 x 1026 atoms of silver. O 1.76 x 10 g O 1.06 x 1029 g O 5.47 x 1048 g O…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: What is the name of the element that is in group 1A and period 1? What is the name of the element…

A:

Q: There are 2.60   x 1015 short tons of oxygen in the atmosphere (1 short ton 5 2000 lb). How many…

A: Consider the given information is as follows; Mass of oxygen in the atmosphere= 2.60×1015 short…

Q: Calculate the density for Zinc Using the atomic mass of Zinc and dimensions of 3.5mmx 2.5mm x 2.5mm

A: Given  Dimension =  3.5 mm × 2.5 mm × 2.5 mm Density = ?

Q: Calculate the surface area in nm^2 of water contained in a watch glass with a diameter of 9.0cm. The…

A: Given,Diameter = 9.0 cm

Q: What is the mass of 1 atom of krypton? Group of answer choices 1x10-22 g 5x1025 g 2x10-26 g…

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: We have 40.5 cm of a material. How many g is it? The material has density of 9.50 g/cm O 68.0 g O…

A: • The values provided in the question are:-  i) Density of a material, d = 9.50 g/cm3  ii) Volume…

Q: Use the information and models to answer the following questiön. A group of students are trying to…

A: Electrical conductive material are those which can transfer charge from one end to other end.

Q: Convert atomic mass of Ca to g. atomic mass of Ca is 40.08 amu  Group of answer choices   A.) 3.00…

A:

Q: A sample of trifluoroacetic acid, C2HF3O2, contains 33.733.7 g of oxygen. Calculate the mass of the…

A: The molar mass of oxygen is 15.999 g/mol, so 33.7337g of oxygen converts to 2.10 moles of oxygen.…

Q: O2P 2p, 2рх 2р, 2рх 2ру 2р, 2pх 2ру Px 2py O2P O2p TT 2p 02s 2s O2s 2s 2s 2s 02s

A:

Q: 19 Which of the following most accurately models the relationship between compounds and elements? A…

A: Given: 19. Models to determine the relationship between elements and compounds.

Q: 90.0 grams of salt is added to 150.00 grams of water, find the mass percent of WATER (watch sig…

A: Given: Mass of solute (salt) = 90.0 g Mass of solvent (water) = 150.00 g The total mass of the…

Q: Determine the mass (g) of a sample titanium that has a density of 4.5 x 103 kg/m3 and a volume of…

A: Since density is given by  density = mass / volume  volume given = 38.8 x 1010 cm3  Since 1 m = 100…

Q: Bromine (Br) and mercury (Hg) are the only two elements that occur as liquids at room temperature…

A:

Q: 2. Elizabeth has two separate samples of the same substance. One sample is in the liquid state, and…

A: Elizabeth has two separate samples of same compound and among them one is liquid and one is solid.…

Q: Name two ways in which the metals shown here differ in generalappearance from the nonmetals.

A: Pure substances are divided into two categories which are metals and nonmetals. These elements…

Q: Determine the number of atoms in 1.85×10^-3L of Mercury. [The density of mercury is 13.5g/mL.]

A:

Q: 9.31 g is the same mass as O 93.1 cg O 9310 mg O 931 kg 0.0931 dg O 931 mg

A: 1 cg = 10-2 g93.1 cg = 93.1 ×10-2 g93.1 cg = 0.931 g   1 mg = 10-3 g9310 mg = 9310× 10-3 g9310 mg =…

Q: The volume of a single iridium atom is 1.04x10-23 cm³. What is the volume of a iridium atom in…

A: Given: Volume of iridium in cm3 = 1.04 X 10-23 cm3.

Q: 1. Which is true about the Law of Conservation of Mass? 3. What was one of the tests that Lavoisier…

A: 1. D. Atoms cannot be created or destroyed, only rearranged. The Law of Conservation of Mass implies…

Q: A chemist adds 85.0 mL of a 1.18 x 10 mM mercury(II) iodide (HgI,) solution to a reaction flask.…

A:

Q: 1) C a b The number of lines exhibited by hydrogen(s) a is The number of lines exhibited by…

A:

Q: 4. A bottle of Gatorade has a volume of 516 mL. What is this volume in quarts(qt)? (1 qt = 0.946 L )…

A: 4), Given. 0.946 L=1 qt We can say that, 946 mL=1 qt 1 mL=1946qt So, 516 mL=1946×516qt…

Q: gas. D. Matter with a defined shape and defined volume. E. The formation of new substances by…

A: We have to match the right answer

Q: chemical properties?

A:

Q: A. In Jules Verne's 1865 story, sunk in the Earth in Florida. (a) Find the minimum muzzle speed…

A:

Q: The mass of an unidentified rock is 15.5 grams. Students determine the volume of the rock by placing…

A: Tables -   Rock                 Density Range (g/cm3)  Coal.                    1.1 - 1.4…

Q: The volume of a sample of lead (density 11.3 g/cm) was determined to be 13.4 cm3. Calculate the mass…

A: Mass of the sample = volume x density                                 = 13.4 cm3 x 11.3 g/cm3…

Q: A student finds that 24.96 g of water at 24.9 C(density=0.9971 g/cm3) is required to completly fill…

A: Given data,Mass of water to completely fill the flask=24.96gDensity of water=0.9971g/cm3Mass of…

Q: How many atoms are contained in a block of aluminum metal measuring 6.0 mm x 5.0 mm x 15 mm? The…

A:

Q: Which one of the following is not included as s block elements?  A)Sodium B)Calcium C)Barium…

A: Given,  A)Sodium B)Calcium C)Barium D)Copper

Q: Classify each statement as an observation, a law, or a theory.a. Chlorine is a highly reactive…

A: Law: A descriptive generalization about how some aspect of the natural world behaves under stated…

Q: We have 12.5 cm of a material. How many g is it? The material has density of 3.50 g/cm O 68.0 g O…

A: Given: Density of material = 3.50 g/cm3. And the volume of material = 12.5 cm3.

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

A: Matter classified into element compound mixture

Q: A gold wire has a diameter of 1.00 mm. What length of this wire contains exactly 1.00 mol of gold?…

A: Given  Density of Gold = 17.g cm-3 Diameter of wire = 1.00 mm = 0.1 cm  Radius of wire = (diameter…

Q: Volume occupied by electrons Nucleus Part A containing protons and neutrons- What is the approximate…

A: The diagram given is,

Q: Complete the following shorthand notations: ? (p, a) Li P (a, ?) s 242Cm (a, n) ? Mg (?,p) iNa 15 16…

A:

Q: Classify each statement as an observation, a law, or a theory. a. Chlorine is a highly reactive gas.…

A: The given statements are classified as an observation, a law or a theory has to be given.

Q: a. pH = 4.5 %3D b. pH 13.1 C. pH = 7.0 %3D d. pОH %3D 1.0 e. РОН 3D 9.2 f. [H*] = 3.4 x 10$ M g. [H]…

A:

Q: Carbon-12 contains six protons and six neutrons. The radius of the nucleus is approximately 2.7 fm…

A: SOLUTION: Step 1: 1 fermi meter = 10-15 m 1 picometer = 10-12 m The volume of the nucleus is…

Q: Carbon-12 contains 6 protons and 6 neutrons. The radius of the nucleus is approximately 2.7 fm…

A:

Q: Determine the volume ton = 2205 Ibs, 1 lb 1 %3D %3D

A: Given mass of Cupper=2.2g Density =8.96g÷cm3 Volume =mass÷density Volume= 2.2÷8.96= 0.24cm3…

Q: Methane and ethane are both made up of carbon and hydrogen. In methane, there are 12.0 g of carbon…

A: According to the law of multiple proportion; When two elements are combined to each other and form…

Q: Rank these ions in order of increasing size. K*, Cl", Mg²+ smallest size Mg²+ < Cl¯ < K* largest…

A: Smallest size Mg2+&lt;K+&lt;Cl- largest size

Q: Section 1: Names and Symbols 1. Find at least 3 elements named after countries 2. Find at least 3…

A: Name and symbol of the element 3 elements named after countries = ? 3 elements named after…

Q: Determine the number of atoms in 1.96 mL of mercury. The density of mercury is 13.5 g/mL

A: Given: Density of mercury = 13.5 g/mL Volume of mercury = 1.96 mL We know,…

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.