What is a conversion factor? Give an example of a conversion factor

Q: State the rules governing the use of significant figures in Adding/subtracting measurements.  How…

A: Significant figures are the digits having a meaning in a given number. The number of decimal places…

Q: when we make observations in the laboratory, which perspective of chemistry are we normally using?

A: There are three main perspectives on the nature of chemistry as macroscopic, microscopic and…

Q: How to tell whether a property is physical or chemical

A: Physical properties are the properties such as colour, melting point,hardness,density and doesn't…

Q: what is chemistry? why is it reliable, flexible and testable?

A: Chemistry is a branch of science, which deals with systematic study of structure, composition and…

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: Generally, two types of representative samples are observed in the sampling process. They are gross…

A:

Q: What is the numerical value of a conversion factor ?why must this be true ?

A: Numerical value of a conversion factor is answered in the next step.

Q: 1. Examine each sample. Do not attempt to taste them. 2. Fill in the table below by the properties…

A: As per the guideline, Since you have posted a question with multiple sub-parts, we will solve the…

Q: What is the mass of 1 gal of carbon tetrachloride in grams? In pounds. I 4.55 L. 1 lb.- 0.454 kg)

A: Given : volume of CCl4 = 1 gal  To calculate :- mass of CCl4 (in grams and pounds)

Q: chemistry

A: Chemistry – Chemistry is a branch of science, it is related to elements, compounds, their…

Q: Distinguish the difference between a coefficient and a subscript?

A: 1.Subscripts are part of the chemical formulas of the reactants and products which indicates the…

Q: measurements of mass and volume so important in chemistry

A: Concept Introduction :   Chemistry : the branch of science which deals with the substances of which…

Q: D. What is the mass of one molecule of water in grams? a. 18 c. 3.0 x 10-23 b. 0ו א 1.! d. ן xl0 1.7

A: To calculate the mass of one molecule of water.

Q: Classify the following as physical or chemical change Opening a can of soda and letting the gas…

A: Physical change is a change in physical appearance of a substance.  Chemical change is a…

Q: Fact, Law, Hypothesis, or Theory? __ Table vinegar is analyzed as 4.0% by mass aqueous acetic acid.…

A: The answer is as follows:

Q: Unit Analysis 1 inch) 11. How many cubic centimeters are in 12.60 cubic feet? (2.54 cm

A: Given,12.60 cubic feet.

Q: A wonder woman found a piece of silver colored metal while walking around the myscira. she…

A: We should calculate the density of the sample and it can be done as follows: Mass of the sample=13…

Q: goformative.com/formatives/60956ddfa1f0d8995bbe3bb2 d G Google O Hudl e Football Pics A BIM - 1st A…

A:

Q: An nickel ore weighing 85.245 g was placed in a flask having a volume of 45.25 mL. The flask with…

A: Given the weight of ore is 85.245 g and was placed having a volume of 45.25 m L. Total mass of the…

Q: Classify each statement as an observation, a law, or a theory. When a match burns, heat is released.

A: A supposition or a system of ideas intended to explain something, especially one based on general…

Q: Which is a correct statement about methods for separating mixtures?A. Distillation results in the…

A: Separation of mixtures involves various techniques and methods used to segregate the mixtures based…

Q: chemical tests were used to differentiate between the two substances in the mixture. Which of the…

A: Physical properties:These are the type of properties which are considered as ‘observables’ i.e.…

Q: The blood plasma volume totals of 2.8-3.2 qt in an average human. A quart is a unit of mass. A quart…

A: A quart is a unit of volume. It is represented by qt. 1 quart is equal to 0.946353 liter. 1 qt =…

Q: Classify each property as physical or chemical.a. the tendency of ethyl alcohol to burnb. the shine…

A: a. Ethyl alcohol burns as it reacts with oxygen in air to form carbon dioxide and water- this is a…

Q: 1. A mixture (shown below) contains the following components: (1) salt, (2) water, and (3) gasoline.…

A: We are given a mixture of three components i.e salt + water + gasoline.

Q: Section 1.1 Chemistry in Context 1. What is the purpose of using the Scientific Method? 2. Define…

A: Question 1 - - >  The scientific method is the process by which scientists attempt to…

Q: What is correct from multiple choice

A: The physical change affects either state or form of the substance. It does not affect the chemical…

Q: This image represents a particulate view of a sample of matter. Classify the sample according to its…

A: In chemistry, the matter can be classified as pure substance or a mixture depending upon its…

Q: Classify each statement as an observation, a law, or a theory. In chemical reactions, matter is…

A: Law is a description of an observation obtained from number of experiments which supports the…

Q: Describe two applications of the use of dilutions at home.

A:

Q: Classify each as a physical change or a chemical change.a. breaking a pencil in twob. water freezing…

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

Q: What is the mass of a rectangular piece of aluminum 160.6 cm * 140.8 cm * 15.2 cm The density of…

A: Volume (V)  = 160.6 cm × 140.8 cm × 15.2 cm  = 343709.696 cm3 Density (d) = 2.70 g/cm3

Q: 1 What is chemistry? A. The study of composition of matter. B. The study of the behavior of matter…

A: Chemistry is the branch of science that deals with matter's composition and properties. Hence option…

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: The scientist repeats the experiment, burning a new sample of steel wool until it is entirely…

A:

Q: Complete the table below. I| mg 2 g dm 8 m 8 ks S 300 cL %3D II

A:

Q: c) A metal sample has a mass of 7.56 g. The sample is placed into a graduated cylinder previously…

A: Given :  Mass of metal=7.56 g Initial volume=20.00 mL The final volume of water= 21.68 mL Volume of…

Q: The density of iron is 7.86 g/cm3. What is the mass in grams of an irregularly shaped piece of iron…

A:

Q: weight of 1000  samples

A:

Q: define Conversion Factors

A:

Q: 5. In an experiment, you would want to separate the mongo beans from water? What process of…

A: Since you are posted with multiple questions. As per the rule, I am answering first question only.…

Q: Which of the following is not the general step in the chemical analysis? a. sampling and sample…

A: General steps in a chemical analysis Identification of the problem and formulating questions Select…

Q: How do i fill in this table?

A: Density = mass (g)/volume (ml)density of water = 0.997770 g/mlHere, we have mass of material…

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: chemist has a block of iron metal (denisty is 7.87 g/ml) The block weighs 1.90g What is the volume…

A:

Q: Classify each change as physical or chemical. a. Natural gas burns in a stove. b. The liquid propane…

A: a. Natural gas burns in a stove.b. The liquid propane in a gas grill evaporates because the valvewas…

Q: A pycnometer is a device used to measure density. It weighs 20.455 g empty and 31.486 g when filled…

A: Density is given by,

Q: Having trouble with conversion factors. The question says write conversion factors ( as ratios) for…

A: Unit conversion from kilometre to mile:

Q: 1. Which of the following is a chemical change? A) cooking an egg B) mixing oil and water C)…

A: ***Note: Since you have posted a question with multiple subparts, we will solve the first three…

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.