Chlorine is a yellow-green gas at room temperature. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. are fiat money and gold coins are commodity money.Chlorine is a chemical element with the symbol Cl and atomic number 17. and gold coins are both commodity monies.ĭ. are commodity money and gold coins are fiat money.Ĭ. In two to three sentences, describe how you would move a file. Siempre contesta las preguntas de los estudiantes y explica todo cuidadosamente. If the teacher is randomly selecting a group of 3 students to represent the class on the student council, what is the probability that Sarah and her two best friends will all be chosen? 1/20 3/20 1/1,140 pllllls answer What is the discriminant of 3x2 - 10x = -2? Marta siempre escucha a todo lo que sus amigos dicen con atención. radonĬarbon monoxide A class has 20 students. 5a + 2 = 7 Which gases are part of Earth's cycles in both the atmosphere and biosphere? Check all that apply. They translated the Bible into English,Ģ3 A source for conducting formal research would include _. Which of the following are ordered pairs of this equation? Which statements accurately describe medieval pardoners? Check all that apply. Which characteristic of life is demonstrated by this situation? A. He was sweating throughout the day, but he stopped sweating once he went back to his air-conditioned room. The length of the pen is 5 more than 8 times the width of the pen.Ĭomplete an equation for the area of the pen, where w is the width of the pen.Ī = blank w^2 blank + w Jim spent a hot summer day playing soccer with his friends. John is building a rectangular pen for his sheep. If necessary, use / for the fraction bar(s). Solve for y Type the correct answer in each box. Find the equation of the new supply curve. A supply curve has equation q = 5p - 22, where p is price in dollars. Find the density of this substance in g/cm^3. The mass of this solid object was found to be 1.249 kg. Plz answer Four more than the product of x and y What is the distance between 182 and 265 on a number line? A) -83ĭ)Ē23.5 I NEED HELP PLEASE!! A block has a length of 3.00 cm, a width of 4.00 cm and a height of 7.00 cm. (D) the sender’s company name, the sender’s address, and the date Name the two types of variables in an experiment The heading of a business letter should include _. Which statement(s) contains a hypothesis? 10The scientist writes in a notebook, "It appears that salt water freezes at a lower temperature than fresh water." 11The scientist continues, "I suggest that the reason sea water freezes at a lower temperature is that sea water contains dissolved salts, while fresh water does not." Leaves the beakers in a freezer for 24 hours.ĨAfter 24 hours, the scientist examines both beakers and finds the fresh water to be frozen. Places both beakers in a freezer at a temperature of l☌ĭ. Dissolves 35 grams of table salt in one of the beakersĬ. Fills each of two beakers with 1 liter of fresh waterī. 6After considering all this information, the scientist sits at a desk and writes, "If sea water has salt in it, it will freeze at a lower temperature than fresh water." 7The scientist goes the laboratory and does the following:Ī. 5The scientist notes the taste of sea water and other factors such as waves, wind, air pressure, temperature, and humidity. 4The scientist travels to a nearby beach and observes the conditions there. 3The scientist also reads about the composition of sea water. 2The scientist goes to the library and reads a number of articles about the physical properties of solutions. 1A scientist wants to find out why sea water freezes at a lower temperature than fresh water. Read the following story and then answer the questions. The option c., × > Ksp AgCl, describes that situation. That product is much greater than 1.8 × 10⁻¹⁰ meaning that the concentrations are higher than the equilibrium concentrations and the mixture will lead to the formation of a precipitate. So, a volume V of a 0.04 M solution of AgNO₃ will yield 0.04V moles of Ag⁺ and the same volume V of a 0.002 M solution of NaCl will yield 0.02V moles of Cl⁻⁻Īnd the product of the two concentrations will be: Uisng the molarity formula, M = n / V, you get n = M × V. When NaCl dissolves in water it completely inoizes into Na⁺ and Cl⁻. When AgNO₃ dissolves in water it completely ionizes into Ag⁺ and NO₃⁻.
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