Chemistry, 13.09.2021 19:50 rainbowboi
A scientist is attempting to check the relative atomic masses on the periodic table. He works with three different compounds that contain only C and another compound. These are diatomic compounds with a formula of CX. He finds the following information. If he assumes the weight of C is 12 what is the weight of the other element (X1, X2, X3) and what is the identity of each unknown element?
Answers: 1
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Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine
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Chemistry, 22.06.2019 09:00
This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.
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How many moles of sulfuric acid (h2so4) are needed to react completely with 6.8 moles of lithium hydroxide (lioh)? 2lioh + h2so4 → li2so4 + 2h2o a. 3.4 mol h2so4b. 6.8 mol h2so4 c. 10.2 mol h2so4 d. 13.6 mol h2so4
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Chemistry, 22.06.2019 22:30
Which of the following is not an assumption that scientists must make about the natural world? a. regularity b. causality c. predictability d. plausibility
Answers: 1
A scientist is attempting to check the relative atomic masses on the periodic table. He works with t...
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