Unit Conversions

Q: The correct decimal representation of 6.453 * 103 is?

A: Scientific notation: Scientific notation is a way of expressing numbers to be conveniently written…

Q: 5) 5.0 × 10-9 m to pm

A: The transformation of one unit into another unit is basically unit conversion. However, this…

Q: What is the relationship between the SI unit for volume and the SI unit for length?

A: Given information,    The relationship between the SI unit for volume and the SI unit for length

Q: x2 4. (0.432)x(0.928)3 1.45 x 10-5 X-?

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Q: 1.5 oz to grams

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Q: Identify common metric prefixes?

A: Common metric prefixes SI are of 7 types

Q: Convert the value 3.35x10-8 L to use unit prefixes.

A: The given value is 3.35x10-8 L. We can convert this number into the unit prefixes as follows:

Q: How does a heterogeneous mixture differ from a homogeneous mixture? How are they similar?

A: Mixtures are the result of mixing together of two or more substances. Example: Mixture of salt and…

Q: When measuring the length of an automobile, which unit of length would be the most appropriate? O…

A: The millimetre is the metric system's smallest widely used unit. The inch, foot, yard, and mile are…

Q: Classify each of the following as an element, compound, or mixture. (a) iron metal (b) oxygen gas…

A: The compounds are formed by the two or more elements which are bonded chemically. The elements are…

Q: 1523.789 mm3 / 4.018 cm2 =   ____________ inches

A: 1523.789 mm3 / 4.018 cm2 =   ____________ inches

Q: Give an example of an element and a compound.How do elements and compounds differ?

A: Element is a substance whose constituents atoms have the same atomic number. Two or more different…

Q: 1. What are the basic units of length, mass, volume, and temperature in the SI system?

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Q: The conversion factor used to convert 55.6 km to miles is _____

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Q: Convert 2.554 mg/mLmg/mL into pg/mLpg/mL.

A: Density is defined as the mass per unit volume. It is represented by. The relation for density is…

Q: Density is an intensive property and volume is an extensive property. Is it true or false?

A: # We are given to find whether the density  and volume are extensive or intensive property. # we…

Q: What is the standard SI unit for volume?

A: Volume of any object/species is the measure of the amount occupied in it's three dimensional space.…

Q: Unit Conversion

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Q: How to do conversions?

A: The conversions of one unit to another can be done by using conversion factors. A conversion factor…

Q: 10−6 ÷1.60×10−19 16.503 − 5.49 −10.012 + 24.67

A: This problem can be soved by applying BODMAS rule which operates the following operation in the…

Q: 92.0 m392.0⁢ m3 to liters

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Q: 1. Classify the following as an element, compound, homogeneous mixture or heterogeneo mixture. Beer…

A: Since you have posted multiple questions we will solve the first one for you. To get the remaining…

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: Ss defec total m

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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: Vegetables is an example of  Element? Compound? Homogenerous mixture? Heterogenous mixture?

A: Vegetables are plant or part of plant that are cooked to consume in human body. They contain some…

Q: 1.42 g/cm² to mg/mm?

A: (13) Consider the given conversion is as follows;         1.42 g/cm2   to   mg/mm2…

Q: Which of the following would indicate a physical change has occurred? O Bubbles are produced State…

A: Answer :-  State of matter changes (ex. water becomes steam)…

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: What is a suitable prefix that can be used for 1/1015

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Q: What does the following prefixes stand for –(a) pico(b) nano(c) centi(d) deci

A: The given prefixes are the designation used in metric system of measurement for convenience and…

Q: Homogenous mixture Heterogeneous mixture

A: Homogeneous mixtures define in which all substances are in same phase Or We can say that we cannot…

Q: Pure Homogeneous Heterogeneous Substance Substance Mixture Mixture Concrete Seawater Magnesium…

A: Pure substance : These are made up of only one kind of particles. Homogeneous mixture : The…

Q: How are mixtures and substances related? Elements and compounds?

A: The matter is defined as something which has a mass and can take up some volume. The mixtures by its…

Q: How does a homogeneous mixture differ from a pure substance? How are they similar?

A: Difference between Pure substance and Homogeneous mixture:A pure substance is composed of a single…

Q: Which of the following describes a chemical property? a. The density of iron is 7.87 g/cm3b. A…

A: The chemical property has to be described.

Q: n kilograms is

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Q: Is melting candle wax a chemical or physical change

A: Physical and chemical changes When there is a change in the chemical composition the change is…

Q: 32. Which of the following is a Physical Property of a substance? A) Burning of gasoline B) Cutting…

A: Physical property is measurable. Physical property doesn't change nature of substance. While…

Q: ax puts cereal in a bowl and pours milk over it. Which term best describes Max's bowl of cereal? O…

A: Mixture - When two or more substances mix without any proportion, it is known as a mixture.

Q: Convert the given masses from the derived units to grams. 20.9 mg = 4.93 dg = 0.0187 µg =

A: All the given conversions are of mass conversions. The mg shows the unit as micrograms. The dg shows…

Q: Why is it important to know how to convert from one unit to another? Provide an example in which you…

A: A unit  of measurement  is definite magnitude of quantity  and it is defined and adopted by…

Q: define Conversion Factors

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Q: conversion factor?

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Q: 20 Match the picture on the left, with the correct classification on the right. 1 Compound…

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Q: Which of the following is an element? Fe,(SO,), Li O2

A: The substances that have a tendency to occupy space are considered as matters. The matters can be…

Q: number of significant figures and units.

A:

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.