Which statement is FALSE? O A pure substance can be varied by changing the proportion of pure substances making it up A mixture can be separated into 2 or more substances by physical or mechanical means A pure substance had properties that are constant, no matter where you find it A pure substance has constant chemical composition A mixture's composition can be varied by changing the proportion of pure substances making it up

Which statement is FALSE? O A pure substance can be varied by changing the proportion of pure substances making it up A mixture can be separated into 2 or more substances by physical or mechanical means A pure substance had properties that are constant, no matter where you find it A pure substance has constant chemical composition A mixture's composition can be varied by changing the proportion of pure substances making it up

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: Mg(OH), is a compound. How many different elements are found in this compound? 3.

A: The substance which is formed by one type of atoms are known as element.

Q: represents tne A 27.29 g 6.41 g 27.29% C 17.09 g 72.71 g O2 72.71% 100% CO2 100.0 g CO2 23.5 g CO, |…

Q: Classify each of the following as a compound, ahomogeneous mixture, or a heterogeneous mixture: (a)…

A: a. b.

Q: When a 12.259-g sample of a compound containing only copper and oxygen was decomposed it produced…

Q: Which of the statements is incorrect? Density is the ratio of the mass of the substance to the…

Q: Which of the following represents a chemical property of hydrogen gas? O It reacts explosively with…

A: To identify: The chemical property of hydrogen gas.

Q: The density of gold metal is 19.3 g/cm3, while that for silver is 10.5 g/cm3. Suppose you had the…

Q: I am having trouble understanding the difference between a compound and mixture and how to identify…

A: When two or more elements are present together they are called compounds. Mixtures are made up of…

Q: What is the name of the element that is in group 3A and period 6? What is the name of the element…

Q: On the fictional planet of Nofactori, two commonly used mass units are related to one another by the…

Q: In the SI system of units, the mole is one of seven base units. It is frequently used in chemical…

A: yes , mole should be considered as the SI unit. The mole is the basic unit of amount of substance in…

Q: In these diagrams, different atoms are represented by different colors. Classify each sample…

A: Let us give number to the sample diagrams (1-10) from left to right with respect to rows. 1 2…

Q: In the image below, you will see four laboratory spectra for known elements as well as the sample…

A: To determine the chemical composition of unknown, we would check the spectral lines and use the…

Q: The following prompt will be used to answer the fırst six questions. An experiment was performed to…

A: Significant number: The non-zero digits are all significant. Among non-zero digits, there are large…

Q: In a laboratory experiment, an undergraduate student collected a sample of ammonium phosphate. If…

Q: Ca(s) + O2(g) + S(s) → CaSO4(s) [?]g 6.400 g 3.206 g 13.614 g According to the law of conservation…

Q: How many grams of oxygen (O) are present in a 6.41 g sample of potassium nitrate (KNO3)? Enter your…

A: Potassium nitrate (KNO3) is ionic compound and it contains one potassium, one nitrogen and three…

Q: Pure substances have many ions heterogeneous mixtures a uniform appearance100

A: To find: The pure substance have--------?

Q: Vhich statement about pure substances and molecules is correct? Molecules cannot be pure substances.…

A: molecules are made up of two or more atoms combining in a specific ratio. Pure substances are those…

Q: (dehydration). A 48.43 gram sample of a hydrate of CaSO4 was heated thoroughly in a porcelain…

A: Weight of hydrated CaSO4 = 48.43 gm Weight of anhydrous CaSO4 = 38.30 gm

Q: Forms 3 elements chemically.

A: This question is related to matter.

Q: A sample of lead contains 8.88 x 1015 micrograms. How many atoms does this sample contain?

Q: The law of constant composition can be used to find the answer A sample of the chemical compound…

Q: Rubidium has two naturally occurring isotopes, Rb-85 (mass 84.912 amu) and Rb-87 (mass 86.909 amu).…

Q: A pure substance is: O composed of two or more regions with different compositions. O composed of…

A: Here we have to define pure substance.

Q: Which of the following is a heterogeneous mixture? Brass Raisin Bran air sugar water none

Q: Three metal objects have the following masses: 7.119 mg 2.12 g 245.2 g How should you report the…

A: -> Addition and subtraction is possible when all numbers are in same unit.-> In addition and…

Q: Complete the following statements. The provided aqueous KI/I2 was a: pure…

A: In a homogeneous mixture, the components completely mix with each other and the composition is…

Q: In an experiment to measure the amount of citric acid in orange juice, citric acid is the sample and…

Q: A nutrition table lists apples with a potassium content of 4600 mg/pound. Assume an average apple is…

A: According to the given data, Mass of an average apple = 75.0 g Because, 454 g = 1 poundMass of an…

Q: INTERACTIVE EXAMPLE The Average Mass of an Element = When a sample of natural silver is vaporized…

A: Step 1: Step 2: Step 3: Step 4:

Q: Identify the physical property: Lithium reacts with water giving off hydrogen gas and heat Oxygen…

A: Physical property : It is a characteristic of a substance that can be observed or measured without…

Q: 13. While cleaning your attic, you found your old rock collection. If 83.58% of the rocks have a…

Concept explainers

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.

Question

Which statement is FALSE?
O A pure substance can be varied by changing the proportion of pure substances making it up
A mixture can be separated into 2 or more substances by physical or mechanical means
A pure substance had properties that are constant, no matter where you find it
A pure substance has constant chemical composition
A mixture's composition can be varied by changing the proportion of pure substances making
it up

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Hydrogen peroxide (H2O2) is a mild antiseptic used to prevent infection in minor cuts and scrapes. The density of H2O2 is 1.45 g/mL. The cylinder container that the hydrogen peroxide is stored in has a radius of 8.5 cm and a height of 22 cm. If the container is full, calculate the number of oxygen atoms in the container. (Vcylinder = πr2h).
How many grams of oxygen (O) are present in a 6.41 g sample of potassium nitrate (KNO3)? Enter your answer in decimal form with the correct number of sig figs. Use the proper abbreviation for the units. NOTE: If you have taken chemistry before and know what diatomic means, do not take that into consideration. Use just O for this. There are reasons for this.
Determine the number of each type of atom in each of the following formulas. Part A NH4Cl Express your answers as integers. Enter your answers numerically separated by commas. NN, NH, NC1 = = Submit Part B ΠΙ ΑΣΦ Request Answer NMg, Np, No = Submit Mg3(PO4)2 Express your answers as integers. Enter your answers numerically separated by commas. ΠΫΠΙ ΑΣΦ ? Request Answer ?
Tia has a sample of pure gold (Au). She weighed the sample and the result was 85.2 grams. Tia wants to determine the number of atoms in the sample. Calculate the number of atoms in 85.2 g of pure gold.
Which of the following is not true?
Explain your rationale for using the summative assessment (below) from the lesson plan on mixing substances in a 5th-grade classroom based on the below standard and learning objective, including how you will use student outcomes to inform future instructional decisions. Summative Assessment Summative: Components of the Lab Report Purpose: The student should clearly state the purpose of the experiment, which is to determine whether the mixing of two or more substances results in new substances. Procedure: The student should describe the steps they took to conduct the experiment. This includes the substances they chose to mix and the safety equipment they used. Observations: The student should record any observable changes that occurred when the substances were mixed. This could include a color change, the formation of a precipitate, or a change in temperature. Conclusion: The student should state whether a new substance was formed based on their observations. They should also…
An iron atom has a mass of 9.27 × 10 - 23 g and a cooking pot has a mass of 0.500 kg. Use this information to answer the questions below. Be sure your answers have the correct number of significant digits x10 What is the mass of 1 mole of iron atoms? 5.58 x 10 g How many moles of iron atoms have a mass equal to the mass of a cooking pot? .900
The element rubidium consists of two isotopes, one having an isotopic mass of 84.912 and the other having an isotopic mass of 86.920. Determine the percentage abundance of the lighter isotope. Record your answer, to the correct number of significant figures, in the box below; do not include the units of your final answer. Then show your numerical set-up(s) in the next question.
Determine the mass of the product from the following data. Mass Aluminum Foil (g) 6.3284 Mass Filter Paper (g) 0.2489 Mass Filter Paper + Product (g) 86.2751 Mass Product (g) Group of answer choices 86.0263 g 86.0262 g 86.0260 g 86.0264 g 86.0261 g
The following prompt will be used to answer the first six questions. An experiment was performed to separate the components of a binary mixture composed of sucrose (sugar) and sand. The following data was collected in lab during the experiment. Mass of original binary mixture: 20.100 ± 0.001 g Mass of initial filter paper: 21.206 ± 0.001 g Mass of filter paper and isolated sand: 25.226 ± 0.001 g 9b Given the data and information in the prompt, what is the calculated absolute error on the percent of sugar in the mixture? Enter the absolute error you calculated in the box below. You do not need to include the % symbol with your answer.