in color and released some gas. Which of the following statement/s is/are true3. A pinch of bread was placed inside a test tube and heated until it became blackishC. Liquid A is an element while Liquid B is a substance.D. Both Liquids A and B are pure substance.according to the given information?I. Bread is solution.11. Bread is composed of ony one substance.III. Bread is made up of solid and gaseous substances.IV. Bread is made up of mixtures of different substances.A. I onlyB. II & IIIC. II onlyD. III & V Liquid B is a substance.3. A pinch of bread was placed inside a test tube and heated until it became blackishA and B are pure substance.in color and released some gas. Which of the following statement/s is/are trueaccording to the given information?I. Bread is solution.I1. Bread is composed of only one substance.III. Bread is made up of solid and gaseous substances.IV. Bread is made up of mixtures of different substances.A. I onlyB. II & IIIC. II only000D. III & IV4. Water boils at 100°C and pure ethanol at 78'C. Which of the statements are TRUEabout water and ethanol?

3. On heating bread forms black precipitate and release a gas.

3. A pinch of bread was placed inside a test tube and heated until it became blackish D. Both Liquids A and B are pure substant A is an element while Liquid B is a substance. in color and released some gas. Which of the following statement/s is/are true according to the given information? I. Bread is solution. 11. Bread is composed of ony one substance. III. Bread is made up of solid and gaseous substances. IV. Bread is made up of mixtures of different substances. A. I only B. II & III C. II only D. III & IV

3. A pinch of bread was placed inside a test tube and heated until it became blackish D. Both Liquids A and B are pure substant A is an element while Liquid B is a substance. in color and released some gas. Which of the following statement/s is/are true according to the given information? I. Bread is solution. 11. Bread is composed of ony one substance. III. Bread is made up of solid and gaseous substances. IV. Bread is made up of mixtures of different substances. A. I only B. II & III C. II only D. III & IV

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...

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Concept explainers

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".

Question

in color and released some gas. Which of the following statement/s is/are true
3. A pinch of bread was placed inside a test tube and heated until it became blackish
C. Liquid A is an element while Liquid B is a substance.
D. Both Liquids A and B are pure substance.
according to the given information?
I. Bread is solution.
11. Bread is composed of ony one substance.
III. Bread is made up of solid and gaseous substances.
IV. Bread is made up of mixtures of different substances.
A. I only
B. II & III
C. II only
D. III & V

Liquid B is a substance.
3. A pinch of bread was placed inside a test tube and heated until it became blackish
A and B are pure substance.
in color and released some gas. Which of the following statement/s is/are true
according to the given information?
I. Bread is solution.
I1. Bread is composed of only one substance.
III. Bread is made up of solid and gaseous substances.
IV. Bread is made up of mixtures of different substances.
A. I only
B. II & III
C. II only
000
D. III & IV
4. Water boils at 100°C and pure ethanol at 78'C. Which of the statements are TRUE
about water and ethanol?

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