A sample of neon gas has a volume of 248 ml at 30.0 °C and a certain pressure. What volume would it occupy if it were heated to 60.0 °C at the same pressure? 226 ml a. c. 278 ml b. 273 ml d. 496 ml

Q: Iron is 5.7 x10-3 percent (%) by mass of a normal healthy human being. What mass of iron would be…

A:

Q: How many significant figures are in each number?

A: Given :- A)  0.1 s B)  108,700 km  To calculate :-  Number of significant figures in each number

Q: where did the 1.479 come from?

A: Solution : Your doubt arises in the given step: 4.93 = 4.46 + log [( 40 + 3.5V mL) / (60 - 3.5V mL)]

Q: Which of the following is not a property of metals? They are good conductors of electricity. A They…

A: The question is to identify which of the of given properties is not a property of metal -

Q: Is it possible to distinguish between an element and a compound? Explain.

A: Metallurgy is the branch of chemistry that deals with the separation of elements from the compounds…

Q: Which of the following is the best reducing agent? O Ba2+ O Ca(s) O Mg2+ O Mg(s) O Ba(s)

A: We have to choose the best reducing agent among the following given options as follows in step 2:

Q: what are coinage metals?

A: Coinage metals are group of three transition metals of group 11 of periodic table.  The coinage…

Q: magnesium + oxygen → magnesium oxide List two physical / chemical properties for each compound

A: Physical properties are properties of substance that can be determined without changing substance's…

Q: 9.921*10^-20*9.714*10^-19]^2

A: Given: [9.921 X 10-20 X 9.714 X 10-19]2

Q: Stock Method Classical Method Ex. CuI - Copper (I) Iodide Cuprous Iodide Chemical Formula Stock…

A: Naming stock system: * Some methods as basic binary compounds , except we need to know which cation…

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: Which of the following are chemical changes?         mold Distillation of Salt Water Cutting Fabric…

A: In chemical changes two or more substances combine to obtain a new substance which is totally…

Q: 1. 2. H3C CH 3 Br

A: Given,

Q: ᴅɪʀᴇᴄᴛɪᴏɴꜱ: ᴅʀᴀᴡ ʟᴇᴡɪꜱ ꜱᴛʀᴜᴄᴛᴜʀᴇꜱ, ɴᴀᴍᴇ ꜱʜᴀᴘᴇꜱ, ᴀɴᴅ ɪɴᴅɪᴄᴀᴛᴇ ᴛʜᴇ ᴘᴏʟᴀʀɪᴛʏ ᴏꜰ ᴛʜᴇ ꜰᴏʟʟᴏᴡɪɴɢ…

A: Molecular geometry of the molecule gives shape of the molecule. If molecular geometry is symmetrical…

Q: What is the characteristic that distinguishes metals from one another?

A: The characteristics that distinguishes metals from one another is  malleability, ductility,…

Q: Calculate mass recovered.  Calculate percent recovery.  initial mass: 2.09 g watch glass + filter…

A: The question is based on the concept of experimental calculations. we have to calculate mass…

Q: Classify substance as a pure substance or a mixture. If it is a pure substance, classify it as an…

A: Given: Aluminum

Q: Identify the following as examples of rotation or revolution. The moon moving around the Earth A…

A: "Rotation" refers to an object's spinning motion about its own axis. "Revolution" refers the…

Q: Composition C-4 is a plastic explosive having a density of 1.05 g/cm3. Calculate the mass of a brick…

A: Given,  Density (D) of C-4 plastic explosive brick = 1.05 g/cm3 Volume (V) of C-4 plastic explosive…

Q: Part A How many significant figures are in each number? 0.1 s O 4 2 3 6 7 The number of significant…

A: Rules for identifying significant figures:  1. The digits except zero are always significant 2. The…

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: A length of 155 nm can also be expressed as 1.55 x 104 pm 155000 pm O 0.155 pm 1.55 x 10-6 pm

A: 1 nm = 10-9 m 1 um = 10-6 m

Q: a. I b. II c. III d. IV CH₂N₂ ????? I II III IV N₂ CH₂

A: The question is based on organic reactions.We need to identify the product and explain its…

Q: Na al y

A: The reactions given are,

Q: sisb AMMO bris musbage Hi pr C 1 - 10 A

A: Given are organic reactions. These are pericyclic reactions.The name of given reaction is…

Q: It is the ability of a material to resist scratching, wear and tear, and indentation. O Hardness O…

A: Please find your solution below : It is important to understand the properties of material while…

Q: In an experiment, calcium carbonate reacted with different volumes of hydrochloric acid in water.…

A: Calcium carbonate reacts with hydrochloric acid to form the carbon dioxide gas.

Q: The density of a metal will vary depending on the size of the sample. Group of answer choices True…

A: False,  The density does not change with variation in size of metal. This is because with decrease…

Q: The first box is the key. The second box represents.... 00 00 00 00 00 0 00 OO OO Atom Y: O Atom Z:…

A: Pure substances are those substances which are made up of only one type of elements. These cannot be…

Q: hich metal is the best conductor of electricity? Choose from the choices below: Gold…

A: The answer of this question is given in step 2

Q: Suggest 5 topics of educational research for chemistry students

A: Advanced water treatment, water reuse  and challenges faced during process.       May be research…

Q: how much the value of typical conversion rate in industry

A: Given the value of typical conversion rate in industry

Q: 2. Homogeneous mixtures(s) A. distilled water B. gasoline C. sandy water D. copper turnings + iron…

A: A. distilled water is a pure substance, not a homogeneous mixture. B. gasoline is homogeneous…

Q: What is the edge length of a cube whose mass for aluminum is 3.44g? Density is 2.70 g/cm3 and Volume…

A: In this question, we want to determine the value of edge length.  You can see details Solution how…

Q: CI Mg

A: Haloalkanes (R-Cl) react with Magnesium metal to form polar Grignard reagents (R-MgCl) which then…

Q: Determine how many grams of oxygen will be reacted given 32grams of hydrogen H2 gas.

A: Given Mass of H2 gas  = 32 gram  Mass of O2 gas  = ? Molar mass of H2   =( 2 ×1 )…

Q: Balance the following chemical equation (if necessary): Si₂ H3 (s) + O₂(g) → SiO₂(g) + H₂O(g)

A:

Q: Part D 1.5630 x 1011 n m O 1 2 O 3 O 4 O 7 O 5 O 6 Tho numho of significant fig

A:

Q: The physician orders 0.2 g of zidovudine every 4 hours for an HIV patient. The medication is…

A:

Q: The density of metal #2 is 3 times greater than the density of metal #1. 52.5 g of metal #2 caused…

A: Given Density of metal #2 is 3 time greater than density of metal #1

Q: Which of the following is correct? Gold nanoparticles are non-metals Gold nanoparticles are metals…

A: To find: The correct statement

Q: Which of the following is not made of chemicals?

A: a chemicals are compounds or element made up of atoms or molecule so they have both mass and occupy…