Unit Conversion

Q: write UNITS OF MEASUREMENT

A: The SI system, also called the metric system, which is used around the world.

Q: Make each of the following unit conversions. a) Convert 4.98 m to mm b) Convert 3.23 L to mL

A: 1 meter = 1000 milimeter  1 Liter = 1000 mililiter

Q: How does scientific notation differ from ordinary notation?

A: A notation is a system of symbols, characters, and abbreviated expressions. It is used in scientific…

Q: 23mg Drug/kg Person into grams for an 182 lb person

A: Answer:- This question is answered by using the simple concept of dimensional analysis using the…

Q: Complete the unit conversions and round vour result to the correct number of significant fiaures.…

A: Unit conversion is the process of converting a quantity from one set of units to another. This is…

Q: When you convert from a small unit to a large unit, what happens to the number of units?

A: Given conversion,       A small unit to a large unit

Q: Identify common metric prefixes?

A: Common metric prefixes SI are of 7 types

Q: List the prefixes for multiples and fractions of basic units.

A: prefix Symbol Multiple factor yocto y 10-24 zepto z 10-21 atto a 10-18 femto f 10-15 pico…

Q: The metric unit used to measure the amount of matter in an object

A:

Q: Distinguish between an intensive property and an extensive property.

A: Introduction: When physical properties do not depend on the mass of a substance, it is called…

Q: 56. Round the number on the left to the number of significant figures indicated by the example in…

A: Significant figures of a number are those which are absolutely necessary to explain the numbers…

Q: Questions 1. What is the difference between mass and weight?

A: As per our guidelines we can only solve first question. Please resubmit the other questions as next…

Q: Carry out the given conversions from one metric unit of length to another. 47.1 Mm = 1.45 nm == km…

A:

Q: Convert the value 7.01x105 g to use unit prefixes.

A: The given unit of mass is 7.01×105 g.

Q: What is the SlI unit for mass? O kilogram O pound O gram

A: • We need to determine the SI unit of mass

Q: Use prefixes to for the following measurements     a) 2.5 X10‐6g  b) 0.001 m  c) 0.0000005 L    d) 1…

A: Given number is 2.5*10-6 g. The prefix for the factor 10-6 is micro.

Q: How many sig figs should I have in 1.18 meters converted to inches

A:

Q: What is the general term for any device that records a measurement? A) an instrument B) an…

A: An instrument is a mechanical apparatus or implement, particularly utilized for accuracy work.

Q: 7.54 x 10e-8 m to nanometers

A: Unit measurements are important in chemistry as they are very helpful while doing calculations. It…

Q: What type of matter is this ?

A: An element is that species that contain atoms of same type. A compound is formed by combination of…

Q: O MEASUREMENT Multiplication and division of measurements

A: General Rules: For addition and subtraction, the same quantities or the quantities which can be…

Q: The data gathered can be presented in a table. Which of the following is NOT included in labeling…

A: Which of the following is not included in labelling the table in presenting the data to be analyzed?…

Q: How are conversion factors used to convert one unit to another?

A: In order to convert one unit to another, we need a definite number which is called as the conversion…

Q: What role do prefixes play in the metric system?

A: Metric system is the measurement system for length, mass and volume. The units used are grams,…

Q: 14 oz converted to grams

A: Given,              14 ozRequired,                   oz into grams conversion .

Q: What is dimensional analysis?

A: Dimensional analysis is the process of analysing relationships between different physical…

Q: Distinguish between the terms accuracy and precision.In general, explain why a precise measurement…

A: To find: Difference between the terms accuracy and precision. Explanation for why a precise…

Q: What are the two unit factors that relate meters and millimeters?

A: Two equivalent quantity’s ratio is unit factor. So the quantity in the numerator and denominator…

Q: Which is an example of a physical change? O Metal rusting O silver tarnishing O Water boiling O…

A: Physical change: In a physical change the physical state of matter changes. In this change different…

Q: Express the following quantity in standard notation for the given unit. (Do not type the unit into…

A:

Q: Convert -128 °F to degrees Celsius and Kelvin

A: The given temperature is converted into degree Celsius as follows:

Q: The density of a substance relative to the density of water.  It is one of the few measured values…

A: The density of any substance is mass by volume. Density=massvolume The unit of mass is Kg and the…

Q: Express the following quantity in standard notation for the given unit. (Do not type the unit into…

A: A standard unit of measurement is a quantifiable language that describes the magnitude of the…

Q: What are the basic four units of measurements?

A: These are the following basic units:

Q: Define the term Derived Unit?

A: To define derived unit, it is important to understand the meaning of SI base units. International…

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.