Point B Region A Region K Epa Point D Region C pc ‒‒ - Point J Enc pa Region I Region E Point Region G Point H

Q: whats the difference between homogeneous and heterogeneous mixtures?

A:

Q: A pure compound melts at 48-49 degrees celsius. If a few grains of sand are mixed in with the…

A: Melting point of a compound is a temperature at which compound changes from solid to liquid.  To…

Q: Multiply 21.5 x 3.149 and report the answer to correct sigfigs. 67.704 6.83 67.7 0 67 70

A: On multiplying 21.5 by 3.149, we get the answer 67.704 . According to significant rules of…

Q: 8 Classify each compound based on its properties Substance Melting Point Solubility Conductivity…

A:

Q: Classify these substances. More than one answer may apply in each case. N2 solution O homogeneous…

A: Element - It is a pure substance made up of only a single atom.  Compound - It is a pure substance…

Q: Convert the density of the unknown solid from g/ml to the SI units of Kg/m^3

A: g/mL to kg/m3

Q: Convert 71.63 g/cm3 to mg/dm3

A: Given :- 71.63 g/cm3  To calculate :- 71.63 g/cm3 to mg/dm3

Q: What cut of meat is typically pan fried at 150-160°C for 5 minutes on each side, and what are two…

A: When a cut of meat is typically pan fried at 150-160o C for 5 minutes on each side, it undergoes…

Q: A 602.9 mL sample of carbon dioxide was heated to 347 K. If the volume of the carbon dioxide sample…

A: Given -> Volume (V1)= 602.9 ml  T2 = 347 K Volume (V2) = 852.2 ml T1= ?

Q: А) 280 K B) The freezing point of water c) 5°C D The freezing point of water and 280 K (E) 30 °F

A:

Q: Part B: Heating Curve for Water Volume of water: 100 mL B1. Data table for heating curve for water…

A: A question based on heating curves, which is to be accomplished.

Q: C6H15N Express your answer in atomic mass units to two decimal places . KMnO4 Express your answer…

A: Calculation for molar mass of C6H15N: molar mass of C6H15N = (6×12.0107+15×1.0078+1×14.0067) molar…

Q: A schematic representation of the distillation apparatus used in Station A is shown below. Select…

A: By distillation one can separate out a specific compound from mixture or its solution.

Q: When the stopper is removed from a partly filled bottle containing solid and liquid acetic acid at…

A: When the stopper is removed from a partly filled bottle containing solid and liquid acetic acid at…

Q: Convert the following measurement. mol mol 3.7 x 10 2 2 kg m g cm

A: Interpretation -  To convert the following measurement which is given as -…

Q: What are the units and numerical value of standardtemperature?

A: The standard unit of temperature is Kelvin.

Q: In this experiment both water and ethanol must be heated to a temperature above room temperature but…

A: A question based on properties of liquid that is to be accomplished.

Q: Which of the following is equivalent to the volume of a cube of ice measuring 10 cm on each side?…

A: Edge length=10 cm∵ Volume of cube=Edge length3                             = 10 cm3…

Q: Compare picture I and II and choose: A = If the indicated property is greater in picture I than in…

A: We have to compare the boiling point blw aldehyde and ether

Q: Which of the following statements concerning the SI system is/are correct? 1. Prefixes are used to…

A: We have to predict the correct statement.

Q: Which of the following is not the characteristics of water? A Tiada warna Colourless B Tiada rasa IN…

A: We have to find out which is not the characteristics of water. Water has the formula H2O.

Q: What substance is closest to 1.47 g/cm^3?

A:

Q: Name and define the common states of matter

A: Matter: Any substance in universe that has mass and occupies some space is termed as matter.

Q: Find what heat in calories (cal) is required to change 42 gg of 100∘C∘C boiling water into steam.…

A: Information of question

Q: Convert the melting point of gold, 1337.4 K, to degrees Celsius

A:

Q: Describe the simple distillation graph/curve.

A: Distillation is the separation technique where different components of a mixture are separated based…

Q: N204 (9) + 4 H2 (g) → N2 (g) + 4 H20 (9) Express your answer using one decimal place.

A:

Q: B3 Initial water temperature 21 °C B4 Final water temperature 100 °C B5 Temperature change (^ T)…

A: Given: B6 volume of water  mass of water B7 number of calories needed to boil water = ?

Q: C4H10(butane, gas used in lighters) Express your answer as a chemical equation. Identify all of the…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: Classify these substances. More than one answer may apply in each case. H2 O, pure substance element…

A: Given substances are : a). H2  b). O2  c). H2O  d). Salt water  They are pure substances or element…

Q: la. Diamond, graphite, and copper have very different properties but are made of networks of atoms.…

A: Metals have a shiny surface and a high melting point.

Q: The state/s of water that exist at 100°C is/are (multiple answers are allowed)   Liquid   Gas…

A: There are three phases of matter. The phase of matter can be interchanged by changing the…

Q: An imperial fathom is exactly 6 feet in length. How many imperial fathoms are there in 1.000…

A: Given that, 1 meter =3.2808 feet An imperial fathom=6 feet It is known that, 1 kilometer= 1000 meter

Q: What unknown solid sample has a melting point range between 119 degrees celsius to 122 degrees…

A: Benzoic acid is a white crystalline solid with a melting point of 122oC. So if the range of melting…

Q: Diamond has the highest melting point of 3550 0C. What is its melting point in Fahrenheit scale…

A: The melting point of the diamond is = 3550oC The melting point of the diamond in Fahrenheit scale is…

Q: 2 NH3 (g) + H2O(g) + CaCl2 (s) 一

A:

Q: is the structure of the product expected from the following reaction? CI heat PRODUCT CI

A: This is a 4n+2 cycloaddition reaction in the presence of heat. this is also called Diels-alder…

Q: Find the boiling point of tungsten in degrees Fahrenheit. (Tungsten, also known as wolfram, has the…

A: Tungsten is a transition metal with atomic number equals to 74. The chemical symbol used to donate…

Q: Which physical property cannot be used for measuring temperature? Color, tensile strength, volume of…

A: Hence, the correct answer is colour and tensile strength.

Q: DU SH MOOg piHos e se Sues 120 90 60 30 Time (minutes) What is the melting point of this substance?…

A:

Q: Which is more efficient method of separating solids from liquids by filtration or by decantation?…

A: Filtration is a process of separation of solid particles from liquids by passing the liquid through…

Q: A B Choose the best description of the kinds of changes that explain the differences between images…

A: Answer:When a system contains only one type of phase that such system is called as homogeneous…

Q: A student collected the data shown in the table below during an experiment. Liquid Characteristics…

A: Alcohol thermometer: The Boiling Point of alcohol thermometer is  78 °C, so it is not possible to…

Q: 250 200 150 100 B 50 20 40 60 80 100 120 140 160 Time (min) The diagram aboveis the cooling curve of…

A: The graph displays gradual decrease of the temperature of any system w. r. t time also depicting the…

Q: The boiling point of water is 100 degree celcius Is the statement true or false ? If false write the…

A: We have to predict correctness of statement.

Q: What is the difference between a heterogeneous and a homogeneous material?

A: Homogeneous and heterogeneous material are two classes of materials which differ in their…

Q: give a particulate-level explanation of why ice (solid water) is less dense than liquid water?

A: Density of ice     = 0.9168 g/cm3 Density of water = 1.00g/cm3 Density gives the measure of how…

Q: The boiling point of hydrogen is -253 oC. What is this temperature in Kelvin? -20 K…

A: In this question, we have to to do conversion of boiling point of hydrogen -253°C into Kelvin unit.

Q: Heather has a beaker containing about 200 mL of clear liquid. At the bottom of the beaker she can…

A: There are different techniques to separate mixtures like distillation, filtration, evaporation etc.…