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Chemistry
High School
What are the oxidation numbers of K, Cl, and O in KClO,?A. K = +2, Cl = +4 and 0 = -2B. K= +1, Cl = +5 and 0 = -2C. K = +3, Cl = +3 and 0 = -2D. K = +1, C1 = -5 and 0 = -2E. None of the Above
Chemistry
High School
What material was added to powdered rock during tuttle and bowen's experiments?
Chemistry
College
4. How is the coordination number determined?
Chemistry
College
3. What is the meaning of coordination number?
Chemistry
High School
Write the chemical formula for each:ammonium nitrateiron(II) sulfidemagnesium hydroxidetitanium(II) chloridecobalt(III) oxidepotassium sulfidebarium acetatemagnesium bromidelithium carbonatepotassium permanganate
Chemistry
High School
Determine which of the following data points is an outlier, on the graph below.Change in Deer Population (thousands) afterRe-introduction of Wolves454035302520151051990199219941996199320002002A. 1999, 18.7 thousandOB. 1995, 33.7 thousandC. 1990, 37.5 thousandOD. 1992, 45.4 thousand
Chemistry
College
An unknown organic compound containing carbon, hydrogen, and oxygen, is subjected to combustion analysis. When 3.498 g of the unknown compound is combusted, 7.950 g of CO2 and 3.255 g of H2O is formed. What is the molecular formula of the unknown compound if its molar mass is 174.27 g/mol?
Chemistry
Middle School
In a pea plant, tall (T) is dominant to short (t), and green peas (G) are dominant to yellow peas (g).
Chemistry
High School
*WILL GIVE BRAINLIEST*An electron resides in the n=5 shell of a hydrogen atom. Relaxing to which shell will emit a photon of light that resides in the visible spectrum?a. n=1b. n=2c. n=3d. n=4e. n=5
Chemistry
High School
N2+3H2=>>2NH3. If 6.72dm of each of Nitrogen and hydrogen (measured at S.T.P.) are made to produced Ammonium. Which of the reacted will be in excess and by how many moles?
Chemistry
High School
What will lithium and bromine make when they bond
Chemistry
College
Halogenated compounds are particularly easy to identify by their mass spectra because chlorine and bromine occur naturally as mixtures of two abundant isotopes. Chlorine occurs as 35Cl (75.8%) and 37Cl (24.2%); Bromine occurs as 79Br (50.7%) and 81Br (49.3%); Boron compounds also stand out owing to the two isotopes 10B (19.9%) and 11B (80.1%). For the compound Bromomethane, CH3Br: At what masses do the molecular ions occur
Chemistry
College
Nitrogen, , is soluble in blood and can cause intoxication at sufficient concentration. For this reason, the U.S. Navy advises divers using compressed air not to go below 125 feet. The total pressure at this depth is 4.79 atm. If the solubility of nitrogen at 1.00 atm is g/100 mL of water, and the mole percent of nitrogen in air is 78.1, what is the solubility of nitrogen in water from air at 4.79 atm
Chemistry
High School
what properties of aluminum make it particularly useful in drinking cars
Chemistry
High School
Chlorine is located in Group 17, Period 3. Which ischlorine most likely to be?O A. A soft, shiny, highly reactive metalB. A metalloid with properties of both metals and nonmetalsO C. A soft, shiny, highly reactive nonmetalD. A gaseous, highly reactive nonmetal
Chemistry
College
The center part of an atom is called the
Chemistry
College
Consider the following reaction: Cd (s) AgCl (aq) --> CdCl2 (aq) Ag (s) In this reaction, a. electrons are transferred from silver in AgCl (aq) to Cd (s) b. electrons are transferred from Cd (s) to silver in AgCl (aq) c. no electrons are transferred since the oxidation number of chlorine atoms does not change d. the oxidizing agent is Cd (s) e. the reducing agent is AgCl (aq)
Chemistry
High School
Which statements describe the motion of the object represented by the graph? Select three options.The object is moving away from the origin.The object is moving towards the origin.The object started at the origin.The object started at 2 meters.The object is traveling at a constant velocity.
Chemistry
College
An organic (covalent) compound is determined to contain 25.54% carbon, 6.43% hydrogen, and 68.03% oxygen. The molar mass of this compound is 141.099. What is the molecular formula of this compound?
Chemistry
High School
Explain how you would calculate the q for warming 100.0 grams of liquid water from 0C to 100 C.
Chemistry
College
Compare the polymerisation reaction used to produce poly(ethene) with thepolymerisation reaction used to produce a polyester.
Chemistry
College
compound composed of cations and anions the forces of attraction that bind oppositely charged ions together lowest whole-number ratio of ions in an ionic compound a depiction of the valence electrons as dots around the symbol for an element a mixture of two or more elements, at least one of which is a metal the attraction of the free-floating valence electrons for the positively charged metal ions ions of the halogen atoms the electron(s) in the highest occupied energy level of an atom the number of ions of opposite charge that surround each ion in a crystal Atoms in a compound tend to have the electron configuration of a noble gas. Shows the kinds and numbers of atoms in the smallest representative unit of a substance a. halide ions b. alloy c. octet rule d. formula unit e. electron dot structure f. ionic compound g. ionic bonds h. coordination number i. chemical formula j. valence electrons k. metallic bond
Chemistry
College
I never see anyone with this question
Chemistry
College
PLEASE HURRY IM TIMED Which of the following are examples of physical changes? (Select all that apply.)tearing a piece of papera nail rustingcrushing a soda can
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