Chemistry

In an effort to sanitize his water, Beethoven knows that bromine can be used to purify water. If Beethoven has 2.12 x 1022 formula units of aluminum bromide are reacted with excess chlorine gas, how many milliliters of liquid bromine (density = 3.12 g/mL) are formed?
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What is the mass in grams of the following measurements? 1.00 mol Al ___________ 6.02 x 10 23atoms Al ___________
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A sample of oxygen gas occupies a volume of 250 mL at .8 atm of pressure. What volume will it occupy at 1.2 atm of pressure?
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Calculate the mass (grams) of 0.750 moles of Al2(Cr2O7)3
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6 a What does the sacrificial protection of iron mean?b Both magnesium and zinc can be used for it. Why?c But copper will not work. Explain why.
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Which sound frequency with a human ear be able to detect? Select ALL correct answers. 100 Hertz 1,000 Hertz10,000 Hertz 100, 000 Hertz The answers are 100, 1,000, 10,000 if your are with K12
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Plz help me well mark brainliest if correct!!
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Cells in different tissues or organs (skin, eye, bone, etc.) contain different DNA. true or fasle,?
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Calculate the molarity 14.1 moles of FeCl3 dissolved in 2350 ml of solution
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Rank from largest to smallest equilibrium constant. To rank items as equivalent, overlap them KBr2, KCl2, KI2
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Describe the difference between a flask, beaker, and graduated cylinder. How does the purpose of each differ?
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Is c6h4cl2 soluble in water?
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A gas is contained in a thick-walled balloon. When the pressure changes from ___ kPa to 114 kPa, the volume changes from 0.654 L to 1.32 L and the temperature changes from 596 K to 715 K.
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read the given chemical reaction c2h6 +o2 --> co2 +h20 how many moles of co2 are produced during the complete combustion of 3.6 moles of c2h6? 1.8 moles 4.4 moles 7.2 moles 9.2 moles
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How many meters are in 65 millimeters?
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6. A container has a volume of 53.9 L. Assuming it is at STP, how many moles of gas particles does it contain?
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Air pressure is greatest ____ because there are more molecules of air pushing down from above.a.at the top of the mountainc.in the troposphereb.at sea leveld.in the exospherePlease select the best answer from the choices provided
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NEED HELP ASAPImagine that you have a sample of a substance. You cannot physically separate that substance into components. You also cannot chemically separate that substance into components. Which of the following are true about your sample?The sample is made up of multiple elements. t or f The sample is made up of one type of atom. t or f The sample is made up of several types of atoms. t or f The sample is made up of a single element. t or f
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You have 1.2 x 10^25 particles of NiCO3. How many grams are present?
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1. Determine the pH of the following solutions:a. 1 x 10-3 M HCI
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El mercurio ha sido utilizado como elemento para medir la temperatura porque Es una mezcla. Al aumentar la temperatura se dilata con facilidad. Es un buen conductor del calor. Es un buen conductor de la electricidad.
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how many moles of water is 5.02 x 10 18 molecules of water
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Which phrase best describes an individual organ?O A. The simplest unit of lifeO B. Made of different kinds of tissuesC. Made of one kind of cellO D. Meets all the needs of an organism
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I NEED HELP PLEASE THANK YOUUU
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