15) How many significant figures are in 4.010000kg?A) 7B) 3C) 516) What is the answer for the following calculation: 1.209 - 0.0204 ?A) 1.19B) 1.1891.188617) What is the answer for the following calculation: 0.0234 × 139.37 ?A) 3.26B) 3.2612583.26118) What is the answer for the following calculation: (1.249 - 0.0234) × 139.37 ?A) 170.812B) 170.8C) 170.8119) How many grams of iron are in 350. mg of iron?A) 0.350 gB) 3.50 gC) 35.0 g20) Express 1.40 × 10-3 L in decimal notation.A) 0.00140 LB) 0.0014 LC) 0.014 L21) A statement about mass always being conserved in a chemical reaction is an example of aA) theoryB) hypothesisC) law

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15) How many significant figures are in 4.010000kg? A) 7 B) 3 C) 5 16) What is the answer for the following calculation: 1.209 - 0.0204 ? A) 1.19 B) 1.189 C) 1.1886 17) What is the answer for the following calculation: 0.0234 x 139.37 ? A) 3.26 B) 3.261258 C) 3.261

15) How many significant figures are in 4.010000kg? A) 7 B) 3 C) 5 16) What is the answer for the following calculation: 1.209 - 0.0204 ? A) 1.19 B) 1.189 C) 1.1886 17) What is the answer for the following calculation: 0.0234 x 139.37 ? A) 3.26 B) 3.261258 C) 3.261

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

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.

Question

15) How many significant figures are in 4.010000kg?
A) 7
B) 3
C) 5
16) What is the answer for the following calculation: 1.209 - 0.0204 ?
A) 1.19
B) 1.189
1.1886
17) What is the answer for the following calculation: 0.0234 × 139.37 ?
A) 3.26
B) 3.261258
3.261
18) What is the answer for the following calculation: (1.249 - 0.0234) × 139.37 ?
A) 170.812
B) 170.8
C) 170.81
19) How many grams of iron are in 350. mg of iron?
A) 0.350 g
B) 3.50 g
C) 35.0 g
20) Express 1.40 × 10-3 L in decimal notation.
A) 0.00140 L
B) 0.0014 L
C) 0.014 L
21) A statement about mass always being conserved in a chemical reaction is an example of a
A) theory
B) hypothesis
C) law

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