In a certain city, electricity costs $0.20 per kW h. What is the annual cost for electricity to power a lamppost for 7.00 h per day with a 100. W incandescent light bulb versus an energy efficient 25 W fluorescent bulb that produces the same amount of light? Assume 1 year = 365 days. 100. W bulb: $ lyear 25 W blb: $ /year

Q: 5.5 x 10? m Cm 2. ms?

A: Introduction- The conversion factor is  1 ms2 = 0.0001cmms2

Q: Could you help me this calculation part?  Mass of empty, dry crucible (g): 0.5g Mass of crucible…

A: Given: Mass of empty dry  crucible = 0.5 g so when we ass sodium bicarbonate to it, the mass will…

Q: A student sets up the following equation to convert a measurement (The ? stands for a number the…

A: In this type of question we will identify the relationship between the units which we need to do…

Q: > O MEASUREMENT Setting up a unit conversion A student sets up the following equation to convert a…

A: Answer :-----

Q: What is the unit of energy now used in the metric system? Give both name and symbol.

A: Unit of energy in metric system is to be accomplished.

Q: if i have to supply the missing information for this conversion factor what would the answer be?…

A: The amount of matter present in a substance is known as its mass. It is the measure of actual…

Q: Complete the following table. Be sure each of your answer entries has the correct number of…

A: Here, we have to do the unit conversions for Energy units.

Q: Convert 614 Cal to J. Only include the numerical value in your answer. Respond with the correct…

A: We know 1 cal = 4.184 J

Q: Perform the following calculation and express the answers in scientific notation using significant…

A: Find the solution below

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: ANS. -0.82 m3

Q: 3.52

A: Dear student I have given answer to your question in the image format.

Q: What is measuremen

A: Thermometer : It is a instrument used to measure the temperature . A glass thermometer works on the…

Q: .20849x=/(.001-x)(0.0004-x)

A:

Q: What is a correct graduated cylinder reading from the image below? (do not include the units) -30…

A: Graduated cylinder is a useful apparatus in chemistry lab for the measuring of the volume of…

Q: A sample of mercury has a mass of 581.0 lb and a volume of 0.686 ft'. What is its specific gravity?…

A: In the given question we have to define the unit of specific gravity, we know that, Density = mass /…

Q: Can you explain to me about the significant figures addition and subtraction rule? Example of the…

A:

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A:

Q: How do I determine which value is the most precise and which value is the most accurate when given 4…

A: In chemistry, there are many ways to check the deviation of experimental data from the accurate…

Q: if a measurement is taken every 0.00005s, how many measurements occur in 1s?

A:

Q: Convert the following measurement. 4 1.7 x 10 2 cm %3D ms Help

A:

Q: dimensional analysis: 2feet 9inches to meters

A: The given number is = 2 feet 9 inches The value in meter is =?

Q: Convert 48 mile into nm

A:

Q: Complete the calculation below, and in the box record your answer to the correct number of…

A: By applying rules of significant figures we can figure out the result in correct number of figures.

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: 1 KJ = 1000 J 1 KJ = 103 J

Q: Solve the following problems.a. (2 × 1 0 3) × (3 × 1 0 2)b. (9 × 1 0 8) ÷ (3 × 1 0 -4)

A: a.  (2 × 1 03) × (3 × 1 02)= 6 × 105            ( am × an = am+n)

Q: See Figure 10-6. Which is/are possible product(s) of the reaction shown?

A: Alkyl halide can be converted into alcohol with it reacts with the water of the base. In the case of…

Q: Each row of the table below describes an aqueous solution at about 25 °C. Complete the table. That…

A: pH measures the strength of Acidic and Basic Nature.  pH = - log [H3O+] pH < 7 means Acidic…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A:

Q: Multiply or divide the following measurements. Be sure each answer you enter contains the correct…

A:

Q: Calculate the kinetic energy of a 2.3 x 104 kg airplane moving at a speed of 266. Round your answer…

A: The mass of airplane, m = 2.3×104 kg  Speed of airplane, v = 266 m/s  Kinetic energy of the…

Q: 2.4x10-3 mol Sb Express your answer using two significant figures. m = Submit Request Answer bo

A: Detail mathematical calculation is shown below

Q: Subtract the values of any two adjacent labeled marks and  divide by the number of spaces (10/10=1)…

A: scale increment

Q: A portion of the polymer polystyrene is shown. H H H H -ċ-ċ-Ċ-Ċ-ċ-Ć-Ċ-Ć-ċ-Ċ- Η Η Η Η Η Η Η Η Η Η…

A: Here, we have to find the repeating unit of the polymer polystyrene.

Q: metric system conversions can you help explain how to get to answer for the following problems 0.2…

A: Here 0.2 deciliter (dL) is converted into liter (L)As 1 deciliter (dL) = 0.1 liter (L)So 0.2…

Q: 2. Find the answer and record the answer to correct significant figures If only the answer is given…

A:

Q: hello can I ask where the density 1.59 from step 1 was from?

A:

Q: needing help with metric to metric conversions with Chemistry 110...   650Gg to kg 0.650cL to dL

A: The conversion of Gigagram (Gg) to kilogram (kg) is shown below.

Q: Perform the indicated conversion: 2.50 × 103 cal = _____ J

A: Unit conversion convert different units of measurements for the same quantity. Energy can be…

Q: 25. A plane flies at a speed of 2.90 x 101 miles per hour. What is this speed in meters per second?…

A:

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: Since we know that 1 m = 100 cm  hence cubic the above values we get  (1 m)3 = (100 cm)3  => 1 m3…

Q: How do I use numeric prefixes for conversion factors?

A: A prefix is a syllable at the beginning of a word and the numeric prefixes explain how many there…

Q: [Review Topics] [References] CHEMWORK Change the following measurement to the appropriate SI unit.…

A:

Q: Perform each of the following conversions 102 F to C

A: The relationship between Fahrenheit and  degree Celsius is given by below equation  F = 9C/5 + 32…

Q: 3- 1-6 x10 3.

A: The given question is: 1.6×10-86.0×103=? Solving 1.6/6.0: 1.66.0=0.267

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: Since, we know that ;  1 kg = 103 g  1 m = 102 cm

Q: Solve for z, where M is molar ands is seconds. z = (3.8 x 10³ M-3-¹)(0.31 M)³ Enter the answer.…

A: The given equation is; x=(3.8×103M-2s-1)(0.31M)3

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.