Question11: Which answer below best exemplifies the composition of the Earth’s atmosphere? Select one: A. oxygen...
Question11:
Which answer below best exemplifies the composition of the Earth’s atmosphere?
Select one:
A. oxygen 78%, nitrogen 21%, carbon dioxide 1%, argon a trace
B. oxygen 48%, nitrogen 51%, argon 1%, carbon dioxide a trace
C. oxygen 21%, nitrogen 78%, argon 1 %, carbon dioxide a trace
D. oxygen 32%, nitrogen 28%, argon 40%, carbon dioxide a trace
Question12:
What is the Moh’s Scale used to measure?
Select one:
A. mineral hardness
B. rock lustre
C. an element’s half-life
D. the speed of a seismic wave
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Question11:
Which answer below best exemplifies the composition of the
Earth’s atmosphere?
Select one:
A. oxygen...
13. The composition of Earth's atmosphere by volume is nitrogen, oxygen, 0.93% argon, 0.039% carbon dioxide, around...
13. The composition of Earth's atmosphere by volume is nitrogen, oxygen, 0.93% argon, 0.039% carbon dioxide, around 1% water vapor, and small amounts of other gases. a. 78%; 21% d. 49%; 49% b. 68%; 31% c22%; 77% c. 88%; 11%
With the advent of photosynthesis, the amount of oxygen in the atmosphere has varied over the...
With the advent of photosynthesis, the amount of oxygen in the atmosphere has varied over the eons up to 35% by volume, theoretically leading to larger plants and animals. The current concentration is 21% oxygen, 78 % nitrogen, and 1% other gases such as argon and carbon dioxide. Assuming an atmosphere of 31 % oxygen, to the nearest whole number (no decimal) what would be the ideal volume of water (in mL) initially placed in a 50 mL graduated cylinder...
1)Angiosperm plants DO NOT have a demonstrated coevolutionary interaction, diffuse or strong, with which group? Select...
1)Angiosperm plants DO NOT have a demonstrated coevolutionary interaction, diffuse or strong, with which group? Select one: a. Social hymenopterans b. Lepidopterans c. Non-hominoid primates d. Herbivorous Permian synapsids 2)If strictly herbivorous animals feeding on C3 plants are switched entirely to C4 plants, what would we see in their tissues? Select one: a. Enrichment of 13C b. Depletion of 13C 3)When plant matter is buried, which carbon isotope will be buried in a greater proportion than it exists in the...
if you can't answer all ,please don't answer 1) of the reactions below, which one is...
if you can't answer all ,please don't answer
1) of the reactions below, which one is a decomposition reaction? A) Ca(NO3)2 + Na2S -- CdS +2NaNO3 B) NH4Cl- NH3 + HCI C) 2Mg + 02 - 2MgO D) 2N2 + 3H2 → 2NH3 E) 2CH4 + 402 - 2002 + 4H20 miches of - x 1? 2 2) Calculate the percentage by mass of ammonia in cisplatin, PtCl2/NH3 12. A) 12.53 B) 5.68 C) 18.09 D) 11.35 E) 4.67 3)...
i need help with this experiment, i have the rawa data and equation. Objects crucible cover...
i need help with this experiment, i have the rawa data and
equation.
Objects crucible cover Magnesium mass (g) 20.5436 2.3947 0.4126 After 2nd heating object magnesium oxide mass (g) 0.4846 After 3rd heating object magnesium oxide mass (g) 0.5426 After 4th heating object magnesium oxide mass (g) 0.5716 M ..1 Metro by T-Mobile 6:17 AM Aa to Q 66 Experiment 6 The Law of Definite Proportions Reaction (6.1) will take place when a weighed, fixed amount of Mg(s) is...
FINAL Homework 1- Multiple choice questions (1 point each) Please answer all the following questions. Which...
FINAL Homework 1- Multiple choice questions (1 point each) Please answer all the following questions. Which one of the following is NOT considered as a natural resource? Energy from the sun Energy from the wind Energy from a battery a Energy from water 2. Aquifers are formed of water That infiltrates into the ground That evaporates into the air None of the above s. Which of the following are advantages of withdrawing groundwater? Sinkhole formation Overpumping Increased contamination from deeper...
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the...
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) 1) One mole of any substance contains Avogadro's number of particles of that substance. What is the numerical value of Avogadro's number? A) 12.01 23 Avagrans t Male aton 6022 x1o atums B) 6.022 x 1023 C) 6.022 x 10-23 D) 1.661 x10-24 E) 1.00 x10-14 2) What is the mass of 4.00 moles of helium, the gas commonly used to fill...
Please answer ALL QUESTIONS. If your not going to answer them please leave it for someone...
Please answer ALL QUESTIONS. If your not going to answer them
please leave it for someone else to answer.
35) A person is rushed to the Emergency Room of a ch a n c e treatment with a drug called Atropine Atropinis asympathom , which i s the effects of the the nervous system. What symptomed this point have that wanted the wse of Bir A) a wound that would not det C) wery Nigh blood pressure D) a depressed...
e. 18 Test Your Knowledge MULTIPLE CHOICE: Choose the one best answer. 1. Each element has...
e. 18 Test Your Knowledge MULTIPLE CHOICE: Choose the one best answer. 1. Each element has its own characteristic atom in which a. the atomic mass is constant. b. the atomic number is constant. c. the mass number is constant. d. Two of the above are correct. e. All of the above are correct. 2. Which of the following is not a trace element in the human body? a. iodine b. zinc c. iron d. calcium e. fluorine 3. A...
Need answers. thank you VOCABULARY BUILDER Misspelled Words Find the words below that are misspelled; circle...
Need answers. thank you
VOCABULARY BUILDER Misspelled Words Find the words below that are misspelled; circle them, and then correctly spell them in the spaces provided. Then fill in the blanks below with the correct vocabulary terms from the following list. amino acids digestion clectrolytes nutrients antioxident nutrition basal metabolic rate extracellulare oxydation calories fat-soluble presearvatives catalist glycogen processed foods cellulose homeostasis saturated fats major mineral coenzyeme trace minerals diaretics metabolism water-soluable 1. Artificial flavors, colors, and commonly added to...
13. The composition of Earth's atmosphere by volume is nitrogen, oxygen, 0.93% argon, 0.039% carbon dioxide, around 1% water vapor, and small amounts of other gases. a. 78%; 21% d. 49%; 49% b. 68%; 31% c22%; 77% c. 88%; 11%
With the advent of photosynthesis, the amount of oxygen in the atmosphere has varied over the eons up to 35% by volume, theoretically leading to larger plants and animals. The current concentration is 21% oxygen, 78 % nitrogen, and 1% other gases such as argon and carbon dioxide. Assuming an atmosphere of 31 % oxygen, to the nearest whole number (no decimal) what would be the ideal volume of water (in mL) initially placed in a 50 mL graduated cylinder...
if you can't answer all ,please don't answer
1) of the reactions below, which one is a decomposition reaction? A) Ca(NO3)2 + Na2S -- CdS +2NaNO3 B) NH4Cl- NH3 + HCI C) 2Mg + 02 - 2MgO D) 2N2 + 3H2 → 2NH3 E) 2CH4 + 402 - 2002 + 4H20 miches of - x 1? 2 2) Calculate the percentage by mass of ammonia in cisplatin, PtCl2/NH3 12. A) 12.53 B) 5.68 C) 18.09 D) 11.35 E) 4.67 3)...
i need help with this experiment, i have the rawa data and
equation.
Objects crucible cover Magnesium mass (g) 20.5436 2.3947 0.4126 After 2nd heating object magnesium oxide mass (g) 0.4846 After 3rd heating object magnesium oxide mass (g) 0.5426 After 4th heating object magnesium oxide mass (g) 0.5716 M ..1 Metro by T-Mobile 6:17 AM Aa to Q 66 Experiment 6 The Law of Definite Proportions Reaction (6.1) will take place when a weighed, fixed amount of Mg(s) is...
FINAL Homework 1- Multiple choice questions (1 point each) Please answer all the following questions. Which one of the following is NOT considered as a natural resource? Energy from the sun Energy from the wind Energy from a battery a Energy from water 2. Aquifers are formed of water That infiltrates into the ground That evaporates into the air None of the above s. Which of the following are advantages of withdrawing groundwater? Sinkhole formation Overpumping Increased contamination from deeper...
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) 1) One mole of any substance contains Avogadro's number of particles of that substance. What is the numerical value of Avogadro's number? A) 12.01 23 Avagrans t Male aton 6022 x1o atums B) 6.022 x 1023 C) 6.022 x 10-23 D) 1.661 x10-24 E) 1.00 x10-14 2) What is the mass of 4.00 moles of helium, the gas commonly used to fill...
Please answer ALL QUESTIONS. If your not going to answer them
please leave it for someone else to answer.
35) A person is rushed to the Emergency Room of a ch a n c e treatment with a drug called Atropine Atropinis asympathom , which i s the effects of the the nervous system. What symptomed this point have that wanted the wse of Bir A) a wound that would not det C) wery Nigh blood pressure D) a depressed...
e. 18 Test Your Knowledge MULTIPLE CHOICE: Choose the one best answer. 1. Each element has its own characteristic atom in which a. the atomic mass is constant. b. the atomic number is constant. c. the mass number is constant. d. Two of the above are correct. e. All of the above are correct. 2. Which of the following is not a trace element in the human body? a. iodine b. zinc c. iron d. calcium e. fluorine 3. A...
Need answers. thank you
VOCABULARY BUILDER Misspelled Words Find the words below that are misspelled; circle them, and then correctly spell them in the spaces provided. Then fill in the blanks below with the correct vocabulary terms from the following list. amino acids digestion clectrolytes nutrients antioxident nutrition basal metabolic rate extracellulare oxydation calories fat-soluble presearvatives catalist glycogen processed foods cellulose homeostasis saturated fats major mineral coenzyeme trace minerals diaretics metabolism water-soluable 1. Artificial flavors, colors, and commonly added to...
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