(1.36). Which of the following is a physical change and which is a chemical change? Making lemonade: Frying eggs: Burning a candle: Whipping cream: Leaves changing color: (1.41). Classify each of the following as a mixture or pure substance: Pea soup: Sea water: The contents of a propane tank: Urine: Lead: A multivitamin tablet: (1.42). Which of these terms (i) mixture, (ii) solid, (iii) liquid, (iv) gas, (v) chemical element, (vi) chemical compound. Applies to the following substances at room temperature? Gasoline: Iodine: Water: Air: Blood: Sodium bicarbonate: Gaseous ammonia: silicon:
(1.36). Which of the following is a physical change and which is a chemical change? Making lemonade: Frying eggs: Burning a candle: Whipping cream: Leaves changing color: (1.41). Classify each of the following as a mixture or pure substance: Pea soup: Sea water: The contents of a propane tank: Urine: Lead: A multivitamin tablet: (1.42). Which of these terms (i) mixture, (ii) solid, (iii) liquid, (iv) gas, (v) chemical element, (vi) chemical compound. Applies to the following substances at room temperature? Gasoline: Iodine: Water: Air: Blood: Sodium bicarbonate: Gaseous ammonia: silicon:
(1.36). Which of the following is a physical change and which is a chemical change? Making lemonade: Frying eggs: Burning a candle: Whipping cream: Leaves changing color: (1.41). Classify each of the following as a mixture or pure substance: Pea soup: Sea water: The contents of a propane tank: Urine: Lead: A multivitamin tablet: (1.42). Which of these terms (i) mixture, (ii) solid, (iii) liquid, (iv) gas, (v) chemical element, (vi) chemical compound. Applies to the following substances at room temperature? Gasoline: Iodine: Water: Air: Blood: Sodium bicarbonate: Gaseous ammonia: silicon:
(1.36). Which of the following is a physical change and which is a chemical change?
Making lemonade:
Frying eggs:
Burning a candle:
Whipping cream:
Leaves changing color:
(1.41). Classify each of the following as a mixture or pure substance:
Pea soup:
Sea water:
The contents of a propane tank:
Urine:
Lead:
A multivitamin tablet:
(1.42). Which of these terms (i) mixture, (ii) solid, (iii) liquid, (iv) gas, (v) chemical element, (vi) chemical compound. Applies to the following substances at room temperature?
Gasoline:
Iodine:
Water:
Air:
Blood:
Sodium bicarbonate:
Gaseous ammonia:
silicon:
(1.44). When sodium metal is placed in water, the following change occurs.
Identify the reactants and products and their physical states
Reactant:
Products:
Which of the substances are elements, and which are chemical compounds?
Transcribed Image Text:(1 unread)-jessen xb Home | bartleby
1/CHXC Chapter 1 Question x (1 unread)-jessen X
31384a64552f55756d4e6f36614f586d65645145693552537556715033366b3950633d
of atoms represented by the formula?
Glucose, a form of sugar, has the formula C6H₁2O6 Which
elements are included in this compound, and how many
atoms of each are present?
liquid,
mpound,
perature?
picarbonate
leanse cuts
gen:
ygen, O₂ (8)
owing
which are
pounds, and 1.55 What are the units used in the SI system to measure mass,
volume, length, and temperature? In the metric system?
1.56 Give the full name of the following units:
NaOH(aq) 1.57
ir physical
n's crust? In
reach.
nts? Perform
uses of the
1.52
um
PHYSICAL QUANTITIES: DEFINITIONS AND UNITS
(SECTIONS 1.6 AND 1.7)
ll
Write the formula for ibuprofen: 13 carbons, 18 hydrogens,
and 2 oxygens. What are the common uses of ibuprofen?
The atmosphere consists of a number of permanent gases:
oxygen (O₂), nitrogen (N₂), carbon dioxide (CO₂), water
vapor (H₂O), and argon (Ar). Identify each substance as an
element or a compound. Would you consider the atmos-
phere to be a heterogeneous or a homogeneous mixture?
1.58
1.59
7
What is the difference between a physical quantity and a
number?
(b) dm
(e) mg
Write the symbol for the following units:
(a) nanogram
(c) microliter
(a) cc
(d) nL
(e) milligram
How many picograms are in 1 mg? In 35 ng?
How many microliters are in 1 L? In 20 mL?
SAMSUNG
SCIENTIFIC NOTATION, SIGNIFICANT FIGURES, AND ROUNDING OFF
(SECTIONS 1.6, 1.8, AND 1.9)
(b) centimeter
(d) micrometer
Express the following numbers in scientific notation with
the correct number of significant figures:
(a) 9457
(c) 20,000,000,000 (four significant figures)
(d) 0.012 345
(e) 652.38
O
JUL
(c) mm
(1) m³
8
(b) 0.000 07
9
51
X
O
Transcribed Image Text:(1 unread)-jessen X b Home | bartleby
384a64552f55756d4e6f36614f586d65645145693552537556715033366b3950
CHXC Chapter 1 Question X |
es each
r burns
ng point
erature
cigae
and a
me lighter
25 °F?
quid,
bund,
ature?
arbonate
se cuts
1.47 Supply the missing names or symbols for the elements in
the spaces provided:
(a) N
(c) Cl
(e)
O
1.48
1.49
1.50
1.53
Phosphorus
Correct the following statements.
(a) The symbol for bromine is BR.
(b) The symbol for manganese is Mg.
(c) The symbol for carbon is Ca.
(d) The symbol for potassium is Po.
Correct the following statements.
(a) Carbon dioxide has the formula CO2.
1.51 Glucose, a form of sugar, has the formula C6H₁2O6 Which
elements are included in this compound, and how many
atoms of each are present?
(b) Carbon dioxide has the formula Co₂.
(c) Table salt, NaCl, is composed of nitrogen and chlorine.
The amino acid, glycine, has the formula C₂H-NO₂. Which
elements are present in glycine? What is the total number
of atoms represented by the formula?
1.52 Write the formula for ibuprofen: 13 carbons, 18 hydrogens,
and 2 oxygens. What are the common uses of ibuprofen?
The atmosphere consists of a number of permanent gases:
oxygen (O₂), nitrogen (N₂), carbon dioxide (CO₂), water
vapor (H₂O), and argon (Ar). Identify each substance as an
element or a compound. Would you consider the atmos-
phere to be a heterogeneous or a homogeneous mixture?
31
PHYSICAL QUANTITIES: DEFINITIONS AND UNITS
(SECTIONS 1.6 AND 1.7)
(b) K
(d)
(f)
m, O2(g) 1.54 What is the difference between a physical quantity and a
number?
AMSUNG
O
Calcium
Manganese
O
20
O
Definition Definition Substance that constitutes everything in the universe. Matter consists of atoms, which 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: solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
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