What is the term used for findings that are summarized based on a pattern or trend?
a. Law
b. Hypothesis
c. Theory
d. Phenomena
e. Prediction - a. Law
Which of the following is a tentative explanation for a set of observations?
Select one:
a. Law
b. Hypothesis
c. Theory
d. Phenomena
e...
straighterline chemistry final exam test with comp
Written for
Portage Learning
Chemistry 101
All documents for this subject (16)
1
review
By: lucamarcelino1 • 1 year ago
By: STUVATE • 1 year ago
Thanks for the review ......wishing you success.
Seller
Follow
STUVATE
Reviews received
Content preview
STRAIGHTERLINE CHEMISTRY FINAL EXAM TEST WITH COMPLETE SOLUTIONS 2023 What is the term used for findings that are summarized based on a pattern or trend? a. Law b. Hypothesis c. Theory d. Phenomena e. Prediction - a. Law Which of the following is a tent ative explanation for a set of observations? Select one: a. Law b. Hypothesis c. Theory d. Phenomena e. Prediction - b. Hypothesis If a liquid contains 60% sugar and 40% water throughout its composition then what is it called? Select one: a. Solute b. Co mpound c. Homogeneous mixture d. Heterogeneous mixture e. Solvent - c. Homogeneous mixture Which of the following does not have a uniform composition throughout? Select one: a. Element b. Compound c. Homogeneous mixture d. Heterogeneous mixture e. Solvent - d. Heterogeneous mixture Which one of these represents a physical change? Select one: a. Water, when heated, forms steam. b. Bleach turns hair yellow. c. Sugar, when heated, becomes brown. d. Milk turns sour. e. Apples, when exposed to air, turn brown. - a. Water, when heated, forms steam. How many micrograms are in 65.3 kg? Select one: a. 0.653 μg b. 6.53 × 107 μg c. 6.53 × 104 μg d. 6.53 × 10 -8 μg e. 6.53 × 1010 μg - e. 6.53 × 1010 μg A smart phone has dimensions of 4.9 inches (height), 2.3 inches (width) and 8.0 millimeters (depth). What is the volume of the smart phone in cubic centimeters? (1 in = 2.54 cm) Select one: a. 58 cm3 b. 1.7 x 105 cm3 c. 90 cm3 d. 3.4 cm3 e. 34 cm3 - a. 58 cm3 Given that 1 inch = 2.54 cm, 1.00 cm3 is equal to Select one: a. 16.4 in3 b. 6.45 in3 c. 0.394 in3 d. 0.155 in3 e. 0.0610 in3 - e. 0.0610 in3 What terms defines a mass which is exactly equal to 1/12 the mass of one carbon -12 atom? Select one: a. Isotope number b. Mass number c. Mass -to-charge ratio d. Atomic number e. Atomic mass unit - e. Atomic mass unit How many neutrons are there in an atom of lead whose mass number is 208? Select one: a. 82 b. 126 c. 208 d. 290 e. none of them - b. 126 Which of these elements is chemically similar to magnesi um? Select one: a. Sulfur b. Calcium c. Iron d. Nickel e. Potassium - b. Calcium C(graphite) and C(diamond) are examples of: Select one: a. isotopes of carbon. b. allotropes of carbon. c. the law of definite proportions. d. different carbon ions. - b. allotropes of carbon. The 80Br - ion has Select one: a. 45 protons, 35 neutrons, 45 electrons. b. 35 protons, 45 neutrons, 34 electrons. c. 35 protons, 45 neutrons, 36 electrons. d. 45 protons, 35 neutrons, 46 electrons. e. 35 protons, 45 neutrons, 46 electrons. - e. 35 protons, 45 neutrons, 46 electrons. The formula for sodium sulfide is Select one: a. NaS b. K2S c. NaS2 d. Na2S e. SeS - d. Na2S Which one of the following formulas of ionic compounds is the least likely to be correct? Select one: a. NH4Cl b. Ba(OH)2 c. Na2SO4 d. Ca2NO3 e. Cu(CN)2 - d. Ca2NO3 What is the name of ClO - ion? Select one: a. hypochlorite b. chlorate c. chlorite d. perchlorate e. perchlorite - a. hypochlorite Which of the following is a molecular formula for a compound with an empirical formula of CH? Select one: a. C2H6 b. C3H9 c. C4H10 d. C6H6 e. None of the answers is correct. - d. C6H6 What is the energy in joules of a mole of photons associated with red light of wavelength 7.00 × 102 nm? (c = 3.00 × 108 m/s; h = 6.63 × 10 -34 J • s; NA = 6.022 × 1023 /mole) Select one: a. 256 kJ b. 1.71 × 105 J c. 4.72 × 10 -43 J d. 12.4 kJ e. 2.12 × 1042 J - b. 1.71 × 105 J Which is the correct electron configuration fo r gold? Select one: a. [Xe]4f145d96s2 b. [Xe]4f145d106s2 c. [Xe]4f135d106s2 d. [Xe]4f145d106s1 e. None of the electron configurations is correct. - d. [Xe]4f145d106s1 Use the Rydberg equation to calculate the frequency of a photon absorbed when the hydrogen atom undergoes a transition from n1 = 2 to n2 = 4. (R = 1.096776 × 107 m -1; c = 3.00 × 108 m/s) Select one: a. 2.06 × 106 s -1 b. 2.74 × 106 s -1 c. 6.17 × 1014 s -1 d. 8.23 × 1014 s -1 e. > 1015 s -1 - c. 6.17 × 1014 s -1 A 6.0 -gram champagne cork is shot out of an opened champagne bottle and traveled at a speed of 65 km/hour. Calculate the de Broglie wavelength (in meters) of the cork. Select one: a. 6.1 × 10 -33 m b. 1.7 × 10 -36 m c. 6.1 × 10 -36 m d. 1.7 × 10 -33 m e. 5.5 × 10 -20 m - a. 6.1 × 10 -33 m A(n) _________ is a point at which a standing wave has zero amplitude. Select one: a. crevice b. node c. pit d. burrow e. orbital - b. node Calculate the wavelength asso ciated with a 20Ne+ ion moving at a velocity of 2.0 × 105 m/s. The atomic mass of Ne -20 is 19.992 amu. (1 amu = 1.66 × 10 -24 g and h = 6.63 × 10-34 J • s) Select one: a. 1.0 × 10 -13 m
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller STUVATE. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R195,34. You're not tied to anything after your purchase.
