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: 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: 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: 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: O MEASUREMENT Multiplication and division of measurements

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

Q: 14 oz converted to grams

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

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: 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…

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.