Describe a method to determine the volume of a very small needle.  4. Why is it necessary to record the temperature when measuring density

Q: A strip of aluminium weighing 0.789 g is heated from 26.1 0(C to 45.8 0(C. What is the q

A: Given data: Mass of Al strip = 0.789 g Temperature T1 = 26.1o C  Temperature T2 = 45.8o C Formula…

Q: How would your ratio calculations differ for density if you did not rate the balance?

A: We have to tell how would your ratio calculations differ for density if one did not rate the…

Q: A. MELTING ICE B. BURNING MATCH C. SAND AND SALT MIXING E. WATER FROM F. STEAM D. MILK GOING SOUR…

A:

Q: One pound of sulfur combines with one pound of oxygen to produce a gas. What is the percent by…

A: Mass of sulphur = 1 pound Mass of oxygen = 1 pound

Q: 19. You are trading blueberries for cherries. Using an exact relationship of 1 cherry = 4…

A: Given :  1 cherry = 4 blueberries.

Q: What are the advantages of the Celsius temperature scale over the Fahrenheit temperature scale?

A: We know that,  Celcius and fahrenheit both are the measure the temperature in different unit.…

Q: Mass and weight are related via the equation W=mg on Earth. Mass is how much matter an object has…

A: On earth the acceleration due to gravity is 9.8 m/s2. The unknown planet having acceleration due to…

Q: Identify the most accurate method for measuring the volume of an irregularly shaped unknown object…

A: B) Since the shape of the object is not cube Hence measuring the length and using equation for cube…

Q: Describe Dimensional Analysis?

A: In science, dimensional analysis can be defined as the analysis of relationship between the various…

Q: What are significant numbers and why are they important in analytical chemistry?

A: Significant numbers are the digit which denotes the count of non- zero digit in a particular number…

Q: Convert 10 hours to secounds

A:

Q: 14. What is the mass in kilograms of 680 mL of a substance that has a density of 0.930 g/mL?

A: We have to calculate the mass in Kg.

Q: The Helium-filled balloon is initially inflated to a radius of 6 inches (assume a sphere). The…

A:

Q: A contractor has 215 bags of cement. Each bag weighs 25.0 kg. How many tonnes of cement does the…

A: Often while calculating, there is a need to convert units from one system to another system. The…

Q: What is mass? Weight?

A: Both mass and weight are the measurement quantities used to identify a substance. Although both mass…

Q: Describe a method to determine the volume of a very small needle.

A: There are two ways to find out voulme of needles. there are 2 ways to find size of small needle , we…

Q: Why are intensive properties useful for identifying a substance?

A: Intensive properties and extensive properties are classified as the types of physical properties of…

Q: The recipe for an ice cream sandwich is given below. 2 cookies + 4 oz ice cream = 1 ice cream…

A: In this question, we have to calculate the amount of sandwiches formed by the given amount in each…

Q: 12 32 33 18 36 39 13 11 OH OH 19 14 6 34 37 H 41 15 35 38 1021 16 17 30 22 25 26 29 28 23 24 27 F 31…

A: If the molecule contains a carbon atom attached with four different types of atoms or groups known…

Q: sugars from honey and 100% fruit juice are natural one therefore we don't need to limit the amount…

A: The given statement is, Sugars from honey and 100% fruit juice are natural one therefore we don't…

Q: 8) The vessel to be weighed should be placed of the pan. (off to the side, or in the center) 9)…

A: 8. The vessel to be weighed should be placed in the center of the pan.  For proper weighing, vessel…

Q: A student determines that 4 clinks weighs 15.45 g and 7 clacks weighs 14.11 g. What is the relative…

A: Solution -

Q: What is 1.3 x 0.8

A:

Q: A weather forecaster predicts the temperature will reach 31 °C. What is this temperature(b) in °F?

A: Different units are used to express the volume and mass of substances such as grams, micrograms,…

Q: 9. Determine the volume of concentrated sulfuric acid (density 1.84 g/cm2) containing 98% HaSO, by…

A:

Q: Why some chlorophyll of some leaves has different values or amount? Explain the content of…

A:

Q: 3. What is the boiling point of water in K? 4. What is your body temperature in Kelvin?

A: In this question we are asked to determine boiling point of water and the human body Normal…

Q: 0.01061:0.00944 Find the ratio

A: We have given that                            0.01061 : 0.00944

Q: 1 liter of paint costs 200.00 pesos can cover 13.33 square meters, exactly how much will it cost to…

A: We need to find total cost of paint.

Q: A 2.0-liter volume of hydrogen gas combined with 1.0 liter of oxygen gas to produce 2.0 liters of…

A: Step : 1             Does oxygen undergo a chemical or physical change?

Q: a. What two quantities must you measure to determine the density of a substance? b. Design and…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: 2) Which of the following is intensive property? A. The amount of energy produced upon burning…

A: Intensive property is the property of matter which is specific and doesn't change with the amount…

Q: Calculate the density of (101) of Ag

A: Silver(Ag) has a FCC lattice. The plane 101 is depicted in the figure below with respective axes.…

Q: Describe the difference between a theory and a scientific law.

A: We usually come across different theories in the course of study and the scientific laws as well.…

Q: 19) A sample of an organic solvent has a mass of 2.59 kg and fills a volume of 1.75 L. Use the table…

A:

Q: A balloon is filled with methane of density 0.75 kg/m³. Let the density of air is 1.25 kg/m³. Find…

A: In the given problem we need to find the volume of the balloon such that a man of 75 kg weight can…

Q: why do we solve problems in a scientific way?

A: When a problem is solved, there are many chances of error. Even the best intentioned scientist can’t…

Q: A nutrition table lists apples with a potassium content of 4600 mg/pound. Assume an average apple is…

A: According to the given data, Mass of an average apple = 75.0 g Because, 454 g = 1 poundMass of an…

Q: A weather forecaster predicts the temperature will reach 31 °C. What is this temperature (a) in K,

A: While converting the ˚C (Celcius) scale to K (Kelvin) scale, 273.15 is added. 0˚C is equal to 273.15…

Q: Real-World Chemistry 1. Suppose you wanted to ship bananas from Puerto Rico to New York and the time…

A: It is given that the bananas need to be shipped from Puerto Rico to new york which takes 8 days.…

Q: 1. Compare physical and chemical properties. 2. Why is it necessary to state the specific…

A: Physical and chemical properties of matter are characteristics of a substance that has to be…

Q: Calculate the density of (101) of Ag.

A: Relative density of silver (Ag) = 10.8 Density of water = 1000kg/m3

Q: What do you call the liquid that separates from the solids in the a) decantation method? What do…

A:

Q: Three liquid substances of the same mass and have an S.G. of 1.20, 0.835 and 1.0 were being mixed to…

A: Given data Specific gravity (S.G.) of three substance are Substance Specific gravity A 1.20 B…

Q: 1. Why do we use the Kelvin temperature Instead of the Celsius scale in calculations involving…

A: Scientists use kelvin instead of celsius because celsius tends to be more factual starting in the…

Q: Which expression correctly relates θ, d and λ? Explain using evidence from your observations

A: Following is the equation of θ, d and λ.

Q: theoretical density

A: BCC(Body centered cubic) has 2 atoms.

Q: Earth's oceans have an average depth

A: An ocean is a huge body of saltwater that covers 71 percent of surface of earth.

Q: A middle school student asks you why hot air rises. Explain in one to three sentences the reason…

A: When air  gets heated up it expands and become less dense than surrounding .