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Chapter 1: Q.1.2 (page 3)

Ask two of your friends (not in this class) to define the terms in problem 1.1. Do their answers agree with the definition you provided?

Short Answer

Expert verified

Yes, their answers are given as per the definition provided.

Step by step solution

01

Given Information

Definition of Chemistry and Chemicals

02

Explanation

Definition as per Student 1:

Chemistry is the branch of science that deals with reactions and chemical processes. And, Chemicals are substances that have definite composition and properties.

Definition as per Student 2:

Chemistry is the study of atoms, molecules, and ions. It is the study of the properties of matter. And, Chemical is a substance that is created by chemistry.

So, yes both the definitions have the same meaning as per the definition given in problem 1.1.

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Most popular questions from this chapter

Select the correct phrase(s) to complete the following statement: A hypothesis is confirmed when: (1.2)

a. one experiment proves the hypothesis

b. many experiments validate the hypothesis

c. you think your hypothesis is correct

Write each of the following in scientific notation :1.5

a. role="math" localid="1651689758670" 120000 b. 0.00000034

c. 0.066 d. 2700

a. At a local hospital, 35babies were born. If 22were boys, what percentage of the newborns were boys? Express your answer to the one's place.

b. An alloy contains 67gpure gold and 35gpure zinc. What is the percentage of zinc in the alloy? Express your answer to the one's place.

c. A collection of coins contains 15 pennies, 14dimes, and 6 quarters. What is the percentage of pennies in the collection? Express your answer to the one's place.

A bag of gumdrops contains 16 orange gumdrops, 8 yellow gumdrops, and 16 black gumdrops. 1.4

a. What is the percentage of yellow gumdrops? Express your answer to the ones place.

b. What is the percentage of black gumdrops? Express your answer to the ones place.

Classify each of the following statements as an observation or a hypothesis:1.2

a. Analysis of10ceramic dishes showed that four dishes contained lead levels that exceeded federal safety standards.
b. Marble statues undergo corrosion in acid rain.
c. A child with a high fever and a rash may have chickenpox.
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