62. List the energy conversions that occur in the process from the time water is about to enter a hydroelectric dam to the burning of an electric lightbulb in your home.

Q: Which measurement scale should you use to measure the dimension of an atom?  A. Micrometer scale…

A: Correct option -->  (c) - Pico meter scale

Q: OH Ph

A: The IUPAC name of the above given molecule is,

Q: Q1. The colour of silver and gold nanoparticles changes according to the particle's ....... OK

A: The color changes depending on the size/shape of the gold nanoparticles.

Q: 294.5 nm to centimeters

A:

Q: All of these are examples of physical properties except: A. Color Change B. Density C.…

A:

Q: How man

A: mole interms of particles :         1 mole = 6.022 x 1023 particles   mole interms of mass :…

Q: What is the macroscopic world

A:

Q: 20. Another name for a homogeneous mixture is

A: Answer: SOLUTION is the another name of homogeneous mixture

Q: 人(y

A: The naming of organic compounds is termed nomenclature. There are several rules for the naming of…

Q: The image below illustrate the complete separation. True or False? O True False

A: In the given image it is clear that there are three type of molecules: Red ones Blue ones And black…

Q: what year did dalton create his ball

A: According to Dalton's theory atoms are the smallest resolvable particles of matter and they can't be…

Q: 843 nm to m

A: Introduction- Conversion factor from nanometer(nm) to meter(m) is as follows- 1nm = 10-9m 10nm =…

Q: Could the nugget be made of gold? Match the words in the left column to the appropriate blanks in…

A: Since the nugget is basically a small chunk of gold and other precious metals.

Q: The following question is on the image attached.

A: NMR spectrum is the Nuclear Magnetic Resonance spectrum helps us to give information about the…

Q: B) List five of tools and instrumentations that you have used in the analytical chemistry Lab.

A: Given : Analytical chemistry lab To find : Five tools and instruments  Solution : As we know that,…

Q: Discuss the difference between theory and scientific law

A: Theory: The plausible explanation which is given for various kinds of phenomenon, event or behaviors…

Q: Activity type of Alumina (meaning of type I, II, III, etc.) what do the numbers mean?

A: Alumina is a granular and extremely porous form of aluminum oxide. It is available in basic, acidic…

Q: What points of Dalton’s theory are no longer current?

A:

Q: 196. Identify the point groups following ChaBa .OH 2 in the Trans Mte

A:

Q: Chemistry is a science because:Unique option.   A) is a set of knowledge   B) use the scientific…

A: What is chemistry?

Q: Round 12.3456 to 4 significant figures

A: 1.All non zero numbers are counting as significant figures.  2. If right of the last significant…

Q: A(n) ______________________ has a negative charge an a mass about 1,800 times smaller than a proton.…

A:

Q: the mass of a piece of Zn having a volume of 4.56 cm3

A:

Q: Name the soft drink that used lithium water in small dose?

A: When lithium reacts with water, lithium hydroxide, and hydrogen gas is formed. Lithium carbonate and…

Q: What type of change in matter is characterized as having a new substance formed in the process?

A: Given  New substance is formed in the process  Type of Change = ?

Q: Which one of the following is the largest mass? A) 7.6 × 10ª mg B) 7.6 × 107 ng C) 7.6 × 10-2 kg D)…

A:

Q: Am I right? Sample 1 2 3 Calculations for sample 1 Mass of aluminum dish   1.24g 1.26g…

A: Percentage of water  = mass of watermass of anhydrate  x 100

Q: write the condensed formula for this

A: A condensed formula is the formula where the symbols of the atoms are written serially as they…

Q: why is the closest whole number 5?

A: It is hit and trial method At the end we are trying to get whole number.  Let 2.4 is multiply with 2…

Q: Match the correct prefix with the factor.

A:

Q: 15. Of the following AH a. 03 (g) b. N₂ (g) #0 for c. Hg (1) d. F2 (g) e. Cl₂ (g)

A: The enthalpy of formation of a substance is the enthalpy change associated with the formation of 1…

Q: 11 This Pictograms stands for

A: The given pictogram is chemical hazard symbol. Chemical hazard symbols are found on reagent bottles…

Q: how did you get a negative answer for part a the correct answer should be 31.508

A: The given data 2 NO(g) + O2(g) --> 2NO2(g)  ∆Horxn = -12kJ and ∆Sorxn = -146J/K The standard…

Q: Answer multiple choice 1. The region surrounding a charged particle in which an electric force is…

A: Answer

Q: What is number 4

A: D) 112 L Given that,    Mass of I2 given = 1269 g  Moles of I2 in 1269 g, n = 1269 g/253.8089 g/mol…

Q: What is being represented by the picture below? a compound being physically separated into its…

A: In the representation, the reactants contain molecules of a compound and the products contain…

Q: 5. A student tests an unknown substance that she believes to be a metal. Which of the following…

A: Metals are usually crystalline solids. In most cases, they have a relatively simple crystal…

Q: Write a not about a chemistry automated analyzer, write a little history, principles the machine use…

A: The analyzer or analyzer is an instrument used to interpret the results. For eg, a gas analysis tool…

Q: Type the Roman numeral that corresponds to each of these numbers.

A: Given : numbers