Sr-90 has [ Select ] neutrons than Y-91 <>

Q: Determine the molar mass of NaAlSi3O8. Use the abbreviated form of the unit in your answer and round…

A: Molar mass of  Na :- 23 g/mol  Al :- 27 g/mol  Si :- 28 g/mol  O :- 16 g/mol  These all data are…

Q: Aqueous hydrochloric acid (HCI) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium…

A:

Q: Is a a mole of copper microscopic or macroscopic

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: The mass of 12.5 mol of sodium chloride is? (in kg)

A: Mass of 1 mole of a substance is called as molar mass.

Q: Calculate number of O atoms in 54.7 g of SO3.

A: A mole is a collection of avagadro number of particle I.e 6.023*1023 particle  1 mole of substance…

Q: The law of constant composition applies to __________. Group of answer choices heterogeneous…

A:

Q: Number of hydrogen atoms in the molecule.

A: The molecule given is having 3 carbon as shown below.

Q: 1.A student performed an experiment to find the number of water molecules associated with the CuSO,…

A: Since you have posted questions with multiple subparts, we will only first three subparts for you.…

Q: . Give the IUPAC name of the following compounds: (b) (a) CH,CHg CH3 CH3 CH,CH3 (c) HgC CH3…

A:

Q: "grams of hydrogen" by to get the units "atoms of hydrogen" ?

A:

Q: 1. CACO3 23 BaF2 3. 4 H2PO4 4 Sr(OH)2 5.3 Al2(Cr207)3

A: Given :-  1.     CaCO3  2.     3 BaF2  3.      4 H2PO4  4.      Sr(OH)2  5.      3 Al2(Cr2O7)3  To…

Q: Which of the following is the correct IUPAC name for the following line structure? Ignore…

A: The cyclic compounds are numbered such that the substituent gets lowest priority. Lowest priority is…

Q: Calculate the number of grams of xenon in 3.145 g of the compound xenon tetrafluoride. mass of…

A:

Q: Percent yield is ( divided by ) times .

A: Percent yield defines the original mass produced.

Q: The number of moles of an element in a compound can be calculated from?

A: The molecular formula of a compound gives the total number of atoms of each element present in each…

Q: Compound A will undergo autooxidation Compound A: Compound B rapidly than Compound B.

A: Ethers undergo autooxidation by O2 into hydroperoxide peroxide and dialkyl peroxides

Q: Reaction A is Reaction A: Reaction B: regioselective than reaction B. Br Br₂, hv Cl₂ hv

A: he chlorination and bromination of methylcyclohexane are both regioselective reactions, meaning they…

Q: INTRODUCTION A Lab Data LABORATORY SIMULATION Reevaluate your calculations. Volume sodium carbonate…

A: Volume of sodium carbonate(Na2CO3) = 98.0 mLMolarity of Na2CO3 = 0.10 MVolume of calcium…

Q: What would you multiply "moles of tin" by to get the units "atoms of tin"? (number) (unit) moles Sn…

A:

Q: Sample 1 Food coloring dye spreads slowly in a sample of water Sample 2 Food coloring dye spreads…

A: Rate of diffusion of dye in water is directly proportional to temperature. Higher the temperature,…

Q: Suppose a student places a beaker on his balance and does not tare it. Then, he adds three…

A: Here you should understand that if you have nothing in the beaker it is the empty weight of beaker.

Q: Determine the molar mass of Mg(OH),. Provide an answer to two decimal places.

A:

Q: A sample of a substance (containing only C, H, and N) is burned in oxygen. 2.341 g of CO₂,…

A: Mass of the initial sample burned = (mass of C) + (mass of H) + (mass of N)  Mass of C(MW = 12.01…

Q: NAMES: SECTION: Trial #1 Trial #2 1. Mass of the filter paper,g 0833 0862 Mass of filter paper and…

A: Hello. There are multiple questions posted together. The first question has been solved. To receive…

Q: SCIENCE 9 QUARTER 2 WEEK 8 Get Ahead (Elaborate) Monosodium glutamate (MSG) or known as "Vetsin" has…

A:

Q: The radioactive cobalt isotope, "Co, has an half-life of 63 months and undergoes decay. The m of Co…

A: From the data  A) We are calculating number of moles of cobalt after 5 years B) The activity of…

Q: a mole of sodium sulfate is defined as

A: The concentration of any substance can be expressed in different ways such as molality, molarity,…

Q: How many liters of CH,OH gas are formed when 3.20 Lof H, gas are completely reacted at STP according…

A:

Q: Calculate the mass of vanadium(V) oxide (V,05) that contains a million (1.0 x 10°) vanadium atoms.…

A: Given : Number of Vanadium atoms = 106 .

Q: barium chloride hydrate, Mass of water Hydration (g)

A:

Q: Table 1: Reagent Evaluation Reagent Ammonium Chloride Sodium Acetate Sodium Phosphate Sodium…

A: It is based on acid base theory for the preparation of buffer.

Q: 24) 0.50 moles of C,,E

A: In the given question we have to calculate the number of grams in the given compound. moles of…

Q: What is the mass of one mole of carbon atoms?

A: 1 mole of carbon atoms means mass of 6.022*10^23 carbon atoms.

Q: #1 Make ammonia: Set each of the number in front of each chemical equal to 1. 1 N₂ + 1 H₂ 1 NH3…

A:

Q: Determine the molar mass of Fe(NO,),. Provide an answer to two decimal places.

A: Molar mass of a compound is determined by adding the atomic mass of the element present in that…

Q: Is the Molecule Geometry and Bond Angle List the Polar Bonds Compound Electron-dot Formula Lewis…

A: Answer- The Electron dot formula , Lewis structure , geometry , and polarity of NH4+  , CH3OH ,…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.