Unreactive - Study guides, Class notes & Summaries

Radon Certification Exam Actual Questions and Answers with complete solution Radon Gas Characteristics -not detected by human senses -naturally occurring -chemically unreactive The nucleus of an atom consists of ____________ and ______________ protons and neutrons What characteristic of an atom determines the charge? Electrons What characteristic of an atom determines the isotope? Nuetrons What characteristic of an atom determines the element I.D? Protons What determines the atomi...

Homozygous - Alleles that are the same are called Phenotypes - Aubrey and Ava are identical twins who were raised in separate homes by their divorced parents. Now, as they enter elementary school, Aubrey shows mild symptoms of phenylketonuria (PKU), but Ava's symptoms are more severe. The girls have different ________ for this disease. Down Syndrome - Which condition involves an extra chromosome? Phenylketonuria sickle-cell disease Down syndrome huntington's disease Klinefelter's sy...

PAEA Summative Exam Questions and Answers Aortic Stenosis - ANSWER Systolic crescendo-decrescendo murmur best heard at the right upper sternal border radiating to the carotid artery. mid-systolic ejection murmur heard over the base of the heart (seen in rheumatic heart disease) Maneuver to Inc Aortic Stenosis murmur - ANSWER sitting while leaning forward increased venous return Cyanotic heart disease - ANSWER Tetralogy of Fallot Transposition of the Gre...

Chem 104 Exam 1 Practice Questions With Answers metalloids - ANS semiconductors are _______ A) metalloids. B) halogens C) transition elements. D) metals. E) nonmetals. O3 - ANS Which of the following is an element and a molecule? A) Air B) He C) CO2 D) C E) O3 fluorine - ANS The ionization energy of chlorine is lower than the ionization energy of ________. A) calcium B) sodium C) hydrogen D) fluorine E) lithium sugar - ANS Choose the pure substance from the list below. ...

Biodiversity - correct answer the variety of living organisms in an area. includes species diversity and genetic diversity Species diversity - correct answer the number of different species and the abundance of each species in an area Genetic diversity - correct answer the variation of alleles in the gene pool of a species Endemism - correct answer when a species is unique to a single place How is species richness counted - correct answer counting the number of species in a known are...

How metals can be placed in order of reactivity - Answer By their reactions with water and dilute acid When metals react with water or dilute acids - Answer Hydrogen gas is given off. The gas 'pops' with a lighted spill. OIL RIG - Answer oxidation is loss (of electrons), reduction is gain (of electrons) A more reactive metal - Answer Will displace a less reactive metal from its aqueous solution The non-metals hydrogen and carbon - Answer can be given positions in the reac...

systematic error is defined as - error that tends to be too high or too low determine the density of an object that has a mass of 149.8 g and displaces 12.1 mL of water when placed in a graduated cylinder. - 12.4g/mL Which of the following represents a physical property? 1. Sodium metal is extremely reactive with chlorine gas 2. Mercury is a silvery liquid at room temperature. 3. Aluminum has a tendency to "rust." 4. Butane is highly flammable. 5. Argon has an unreactive nature. - Merc...

CFC's and the ozone layer | Questions and Correct Solutions Latest Update 2024 CFCs are organic molecules that contain 3 elements: - Answer - carbon, chlorine and fluorine CFCs are both non - Answer - toxic or flammable and start off unreactive In water CFCs are - Answer - insoluble CFCs have a low - Answer - boiling point CFCs were used in - Answer - refrigerators, air conditioning systems, propellants and aerosol spray cans In 1974 discovered the truth behind CFCs which was that - Answ...

Alleles that are the same are called ________. a. homozygous b. phenotypes c. genotypes d. heterozygous correct answer: Homozygous Aubrey and Ava are identical twins who were raised in separate homes by their divorced parents. Now, as they enter elementary school, Aubrey shows mild symptoms of phenylketonuria (PKU), but Ava's symptoms are more severe. The girls have different ________ for this disease. a. autosomes b. genotypes c. alleles d. phenotypes correct answer: ...

Why is glass so often used as a material for lab containers? 3. What is the metal device used to hold hot containers? 4. What is the weighing dish used for solids? 5. What device is used to smother small fires? 1.) beaker 2.) glass is strong combat things like acid and other kinds of harsh stuff. It is neutral with most lab chemicals. 3.) tongs. 4.) watch glass 5.) fire blanket . 1. beaker 2. Glass is so often used as a material for lab containers because it is unreactive with most l...