Helium - Study guides, Class notes & Summaries

a huge ocean wave that may be caused by earthquakes, often under the ocean floor, is called what? - tsunami A leech survives by feeding off the blood of other, larger beings. This type of behavior is known as what? - parasitism a neutron has what electrical charge - neutral a proton has what electrical charge - positive +1 an electron has what electrical charge - negative -1 butterflies have how many legs - 6 butterflies have three main body parts - head, thorax, and abdomen entomology ...

CHEM 101 Final Ivy Tech Exam| 155 Questions With Verified Answers What is the definition of a scientific theory? Correct Answer: a model that explains the underlying reasons for observations and laws What term best describes a brief statement that summarizes many past observations and predicts new ones? Correct Answer: scientific law Which of the following is an example of a scientific law? Correct Answer: In a chemical reaction, matter is neither created nor destroyed. Which of the ...

Chem 101 Ivy Tech Midterm Exam| Questions with Correct Answers Which of the following is considered a hypothesis (as opposed to an observation)? Correct Answer: Birds can fly because they have hollow bones Which of the following would be considered a theory? Correct Answer: Helium balloons float because helium is less dense than air. Which of the statements below is NOT part of the scientific method? Correct Answer: All of the above steps are part of the scientific method. Which stat...

what is the sun comprised of? - 73% hydrogen 25% helium why is the sun stable? - outward force of gas pressure; inward force of gravity Where does the gas pressure in the sun come from? - nuclear fusion reactions in the core at temperatures of 15 million degrees What is the diameter of the sun compared to earth? mass? luminosity (compared to 100W lightbulbs? - diameter-109x; mass-333,000; luminosity- 4 x 10^24 What percent of mass in the solar system comes from the sun? - 99.9% how long h...

OSSF EPITHELIUM EXAM WITH QUESTIONS AND VERIFIED ANSWERS...

FDNY CoF G71 2024 /80 Questions And Answers Already Graded A+. Quiz :Who handles the SUPERVISION and STORAGE of the compressed gases? - √Answer :A person holding a G71 certificate of fitness Quiz :Who handles the INSTALLATION and MAINTENENCE of compressed gases? - √Answer :A person holding a G79 certificate of fitness Quiz :Permits issued prior to July 1st 2008 are subject to? - √Answer :Compliance with former fire codes Quiz :Permits issued after July 1st 2008 are subject to? - ...

What makes up 99.8% of the solar system's mass? The sun Mercury, Venus, Earth and Mars are called what type of planets? Terrestrial Terrestrial planets are ________ in size and ______ in mass and have a _______ density of 3.9-5.5 g/cm3 Small; Low; High What terrestrial planet is the densest of them all. Earth Jupiter, Saturn, Uranus and Neptune are called what types of planets? Jovian Jovian planets are ______ is size, ______ in mass and have a _______ density of about 0.7-1.6 g/c...

Non flammable Answer Unable to support combustion Oxidizing Answer Not flammable but supports combustion Bourdon gauge Answer A fixed orifice comma variable pressure flow meter Thorpe tube Answer A variable orifice, constant pressure flow meter Reducing valve Answer A valve that reduces gas pressure Regulator Answer A device that controls both pressure and Flow Flow meter Answer A device operated by a needle valve that controls or measures gas flow according to viscosity and de...

ASVAB, Real ASVAB Test!!! Questions With Correct solutions Latest Updated 2024 (GRADED) necessary for body's maintenance, growth, and repair (GS) - correct answer Proteins used primarily for energy (GS) - correct answer Carbohydrates and Fats Water boils at ____ degrees fahrenheit (GS) - correct answer 212 Water boils at ____ degrees Celsius (GS) - correct answer 100 Water boils at ____ Ks on the Kelvin scale (GS) - correct answer 373 carry blood from capillaries toward the heart. (GS) - ...

1. The atomic packing efficiency of tungsten (W) is72% 52% 68% 74% ANSW 68% 2. The crystal structure of copper isFCC BCC HCP Orthorhombic: FCC 3. Alkali metals,such as Li, Na and K, have BCC crystal structureTrue False: True 4. The planar density of (111) plane in FCC is about0.1 0.5 0.9 0.7: 0.9 5. The linear density along [110] direction in FCC is0.1 1.0 0.5 0.8: 1.0 6. The alpha-titanium (HCP) and beta-titanium (BCC) are two.....................................................