Q: Which of the following conversion factors or equalities is NOT correct?

$1 \text{ gram} = 100 \text{ decagrams}$

Question 1

Which of the following is an example of a homogeneous mixture?

Accepted Answer

A solution of rubidium bromide in water

Question 2

Which process below is a chemical change?

Accepted Answer

Baking a cake

Question 3

Which of the following elements is incorrectly matched with its symbol?

Accepted Answer

Rubidium, Tc

Question 4

Which would be classified as a heterogeneous mixture?

Accepted Answer

A boulder

Question 5

Which element has chemical properties most similar to radium?

Accepted Answer

Calcium

Question 6

A sample of titanium weighs $3.48 	imes 10^{-2}$ g. Approximately how many atoms are in this sample? (Atomic mass of Ti = 47.9 g/mol, Avogadro's number $= 6.022 	imes 10^{23}$ atoms/mol)

Accepted Answer

$4.38 	imes 10^{20}$ atoms

Question 7

Convert 1266 grams to kilograms.

Accepted Answer

$1.266$ kg

Question 8

A 1000.0 g sample of tin required 394 calories to raise its temperature from 24.5$^\circ$C to 100.0$^\circ$C. What is the specific heat of this metal?

Accepted Answer

$0.0524$ cal/g$^\circ$C

Question 9

Which of the following conversion factors or equalities is NOT correct?

Accepted Answer

$1 	ext{ gram} = 100 	ext{ decagrams}$

Question 10

How many significant figures are in the result of the following computation: $14.023$ liters $+ 1.5$ liters?

Accepted Answer

2

Question 11

Which of the following represents a valid, properly written, ground state electron configuration?

Accepted Answer

$1s^2\ 2s^2\ 2p^6\ 3s^2\ 3p^6$

Question 12

Which type of electromagnetic radiation has the highest energy (shortest wavelength)?

Accepted Answer

Ultraviolet (UV)

Question 13

A neutral atom with a valence shell configuration of $ns^2np^1$ will form a _____ ion.

Accepted Answer

1+

Question 14

Which element will combine with either lithium or sodium to form a 1:1 compound?

Accepted Answer

Iodine

Question 15

Which of the following metals is isoelectronic with $S^{2-}$?

Accepted Answer

Ne

Question 16

A bottle contains 6.0 fluid ounces of alcohol. What is the mass of alcohol in the bottle? (Note: 1 fluid ounce = 29.56 mL; density of alcohol = 0.87 g/mL)

Accepted Answer

154.5 g

Question 17

A solid melts at $-111^\circ$C and it becomes a gas when its temperature is above $-32^\circ$C. At which temperature would it exist as a liquid?

Accepted Answer

150 K

Question 18

Which of the following best describes the electron configuration for an excited state sodium ion, Na$^+$?

Accepted Answer

$1s^2\ 2s^2\ 2p^6\ 3p^1$

Question 19

How many nonmetal atoms are there in the formula of Al$_2$(SO$_4$)$_3$?

Accepted Answer

15

Question 20

Which of the following elements is a metalloid with 2 valence electrons?

Accepted Answer

Germanium

General Chemistry and Atomic Structure: Study Guide for Biology Students

Study Guide - Practice Questions

Study Guide - Flashcards