Part A How many significant figures are in each number? 0.1 s 4 1 3 6. 7 The number of significant figues is ambiguous.

Q: Determining Density and Using Density to Determine Volume or Mass Calculate the density of mercury…

A: Given, Mass of mercury = 1.00 * 102 g Volume = 7.36 cm3

Q: A piece of metal with a mass of 13.2 g was droppedinto a graduated cylinder containing 17.00 mL of…

A: To calculate the density. Thus, it is expressed as shown in equation (1). Where, d = density, m =…

Q: How many significant figures are in the result of the following calculation: 8.671 cm + 1.39 cm The…

A: Using concept of significant figures.

Q: 2. A marble ball placed on an analytical balance giving a mass of 12.5640 g. This marble ball is…

A:

Q: .Consider the numbers 23.68 and 4.12. The sum of these numbers has significant figures, and the…

A: Given that : The numbers are : 23.66 and 4.12 We have to determine the number of significant figures…

Q: Osmium (Os) is the densest element known (density =22.57 g/cm3). Calculate the mass in pounds and…

A: Volume of the sphere is 43πr3, where r is the radius of the sphere.  Calculate the volume of the…

Q: The density of chromium metal is 7.14 g/cm3. A cube of chromium has a mass of 62.00 kilograms.…

A: Record the given data, Mass of cube = 62.00 Kg = 62000 g…

Q: 99. A sample of an unknown metal has a mass of 35.4 g and a volume of 3.11 cm. Calculate its density…

A: Density is a physical quantity that can be determined with the help of the mass and volume of the…

Q: D. Determining the Density of a Metal Block 246.1389 Mass of metal block Value of smallest markings…

A: Density of a substance is the defined as the mass per unit volume. Density = mass /volume    Given…

Q: A chemist adds 4 drops of hydrochloric acid to a beaker. What kind of number is "4" in this example?…

A: This is exact number. Because the number is obtained by counting. Each drop is countable. So, 4…

Q: anta has 8 reindeer. How many significant digits are there in this umber? elect one: D a. 0 O b. 1…

A: Number of reindeer Santa have = 8

Q: 2. A nurse measured the average heart beats of a patient and reported to the doctor in terms of time…

A: The time period of patient patient heart beats = 0.8 s  Number of heart beats formed in a minute = ?

Q: A piece of gold ingot has a mass of 257 g and a volume of 13.3 cm3. Calculate the density of gold in…

A: The mass per unit volume of a substance is known as the density of the substance. The density of a…

Q: Calculate the volume of the lead ball

A:

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: Round each number to three significant figures. 25,401 1,248,486 0.001265982…

A:

Q: A metal lump has a mass of 30.000 g. When it is placed in a graduated cylinder containing 20.0 mL of…

A: Density is equal to the ratio of mass and volume. Formula used: Density is generally expressed in…

Q: 9) A cube containing two sodium atoms has a mass of 7.64 x 1023 g and a density of 0.963g/cm³.…

A:

Q: Round each answer to the correct number of significant figures. 9 +2.8 - 0.135+10.8=22.265 My…

A: The significant figures refer to particular digits in a number. According to the measurement rule,…

Q: significant

A:

Q: The appropriate number of significant figures in the result of 15.234 x 15.208 is Select one: a. 5…

A: 1) the result of 15.234×15.208

Q: Round each number to two significant figures  233.356       0.002353.   can you please…

A: Interpretation : We have to count number of significant figures.

Q: Round the answer to the correct number of significant figures. (27.52÷3.29) + 5.7=14.065

A: Introduction: significant figures in a reported value is the number of digits that are known with…

Q: For the image attached Make a graph of the average mass vs year. Please label y and x axes

A: The graph to be plotted is Average Mass Versus Year.  Hence we have to take "Average Mass" on…

Q: How close does the lightning have to strike for you to hear it 2.5 s after it strikes? Round to two…

A: Light travels faster than sound. So it hits before sound. We can easily calculate the distance of…

Q: 16. How many significant figures should the answer have if we multiply: 5.60 x 3.2 O 2 O 3 1

A: The given equation is, 5.60 × 3.2 = 17.92 The number of significant figures is 4.

Q: A copper wire is 48.79 cm long and weighs 1.147 g. The density of copper is 8.933 g/cm3. What is the…

A: First using given density and mass, the volume of the copper wire is calculated.

Q: Conversions involving units raised to a power: include the correct number of significant digits and…

A: Here we are required to convert the unit

Q: Identify the number of significant figures in the numer 9.00 x 107

A:

Q: What is the density and identity of the metal? (see Table 3.1)

A: Mass of object = 8.37 g Volume occupied by metal = 3.10 mL Density = mass(g)/volume(mL)  = 8.37/3.10…

Q: What is the mass of a cube of aluminum 2.03 cm on each side. The density of Al is 2.70 g/cm3.

A: The length of the cube of aluminium is = 2.03 cm The density of aluminium is = 2.70 g/cm3 The mass…

Q: Which choice best describes the degree of uncertainty in the measurement 16.30 g? O The uncertainty…

A: Given: measurement = 16.30 To calculate: Degree of uncertainty in the given measurement

Q: a spherical metal ball has a mass of 4.714g and a diameter of 8.82mm what is the density of the…

A: The density of a substance is defined as the measure of mass per unit volume. It is expressed as…

Q: A piece of metal with a mass of 13.2 g was dropped into a graduate cylinder containing 17.00 mL of…

A:

Q: 14.12 Round your answers to 6 decimal places. Box your final answers.

A: The chemical element is usually represented by the symbol XZA. Here X is the atomic symbol of the…

Q: ii) How many significant figures are present in number 05.105? a. 3 b. 4 c. 5 d. 6

A:

Q: Nickel metal has a density of 8.90g.how much 15cm3 of nickel metal weigh in gram

A: Density of a particular substance is the compactness of atoms present in it. It represents the…

Q: a metal sphere has a radius of 1.42 cm and mass of 61.6 g. what is the density of the metal sphere

A: Given : Radius of sphere (r) = 1.42 cm And mass of sphere = 61.6 g

Q: What would be the correct reading, with the correct estimated digit, when using a ruler that has…

A: Significant figures are the number of digits in a value that contribute to the degree of accuracy of…

Q: 3. What is the correct volume in each of these containers with appropriate significant figures? -34…

A: The answer is as follows:

Q: 3 6. 7 8. 9. 10 11 12 mm 41 1.

A: Significant figures- Uncertainty in measured value leads to uncertainty in calculated results.…

Q: use each diagram to report a measurement to the proper number of signifigant figures

A: Given :b) 100 mL graduated cylinder c) 10 mL graduated cylinder

Q: An object has a mass of 170 g and a density of 13.2 g/cm³. Determine the volume of the object in…

A:

Q: An object has a mass of 157.7 g and a density of 11.5 g/cm. Determine the volume of the object in…

A:

Q: Directions: Please answer the following questions to the best of your ability. 1. Round the…

A: Since your question has multiple parts and multiple subparts, we will solve first three subparts of…

Q: 1. A metal cylinder with a mass of 12.3455 g was dropped into water contained within a graduated…

A: Since you have asked multiple question, we will solve the first questionfor you. If you want any…

Q: A student determined that the mass of four pennies was 8.7 grams. Use this information to calculate…

A: Given :-  No. of pennies in 8.7 g = 4  To calculate :-  No.of pennies in 2.5 pounds

Q: An object will sink in a liquid if the density of the object is greater than that of the liquid. The…

A: Given, Mass of sphere = 9.83 g Density = 13.6 g/cm3   The volume can be calculated as :

Q: Which number has 5 significant digits? O 234.6 O 0.013245 0.0001 O 1.202

A: Option B is correct.

Q: Round each number as directed: a. 429.894 – tenth's place c. 14300. – hundred's place b. 344321 –…

A: Rounding off the given digits: a) Rounding off 429.894 to tenth's place = 429.9 Here we have rounded…

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.