Select one: (0) - (-1) 2(!) d. A salt bridge allows the electrolyte solution to siphon from one side of the cell to the other so the levels remain equal. b. Al2O3 Select one: How do you find the mass of an atom? c. A salt bridge insulates the two electrodes. (You can select multiple answers if you think so) Your answer: Volumetric flask is used for preparing solutions and it has moderate estimate of the volume. 12. 0.1 M CaCl2 Calculate the molecular or formula mass of rubidium carbonate, Rb2CO3. What new isotope is also formed? a. Na(s), H2(g) c. 2Na(s) + Cu2+(aq) Cu(s) + 2Na+(aq) -A-B-A-B-A-B-A-B-A-B- The same process works for finding the mass of one molecule. e reacted, what mass of calcium fluoride will be produced? The word 'mole' has been adopted to represent the Avogadro number of atoms of an element, that is, the relative atomic mass of an element. Select one: 34.0 mol A number of moles of magnesium sulfate is going to be the same as the number of moles of. d. 81.63 mmHg c. J. J. Thomson To find a mass. Hope this helps! Given: Hi-6m and H-4m. a. b. So now we're going to wear a gun problem. a. Evaluate j 0 Let's say, for example, you want to know the mass of a single atom of water. a. Boiling water to form steam Select one: a. When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of that substance. e. Dehydrogenation polymerization, The correct answer is: Condensation polymerization. Each circle of X represents 1 mol of X. 119.00amu 39.10amu+79.90amu= 118.95 => 119.00amu 100 g C2H4 Select one: Atomic mass of Arsenic is 74.9216 u. Select one: 6.46 10-25 J e. Alcohol, Which one of these materials is a copolymer? Does this match the bond order predicted by the electron-dot structure? One unified atomic mass unit is approximately the mass of one nucleon (either a single proton or neutron) and is numerically equivalent to 1 g/mol. 15 p, 16 n, 15 e When a spring is stretched from its equilibrium length The spring exerts force in the direction it is being stretched The spring exerts force in the direction opposite that it is being stretched The spring exerts a force normal to the direction it is being stretched The spring does not exert any force The direction of the force exerted by the spring depends on the sign of the spring constant,k A helium balloon released on the surface of the earth will rise into the air: A similar helium balloon. c. amine. Now first of all we need to check if the reaction equation is balanced or not and we can see that it's not balanced. You can see that this one this number is obviously don't be smaller. b. amplitude d. Se Select one: Select one: b. its low electronegativity that allows it to ionize easily. Periodic Table. c. solids c. 246 torr The correct answer is: 0.75 mol of a volatile compound in 750 g of ethanol, Which is a Lewis base? d. KBr The location that indicates conditions under which two phases can exist in equilibrium is called the ;^ +le As Fsjy< / c^A-ctive hollaw spbcre ~4h c^ 4^ 15 ~karjed 4dius b Ad 34tl~r Gad: Ce ce ctrie {^aec whole Jstcm C> 0 eleet(-stati eqliyi= WLe^ 4k{ 1-) Usia= 64us$` $ J (r < 4 ) (4 < 721) (bzr< s) 44 (o>c) eleetc fic |d, tne rej"s On ; fer fvA +h6 4e 4 O^ +le Fia tke in Ju#o charje > Pe| Jn' ii-) ~ +4a hollaw sphere 'caer 4 o4ter On Ju. Magnesium hydroxide (Mg(OH)), as Milk of Magnesia' can be used t0 neutralize excess stomach acid, represented by HClaq) as per the following reaction Mg(OH)z(s) + 2HClaq) MgClz(aq) + 2H-O() When 25.00 g of HCI are combined with 38 g of Mg(OH)z, what mass of MgClz can be produced Theoretical yield of MgClz Name the Limiting Reactant. 1.66 10-24 g So the number of moles of magnesium sulfate will be equal to one times the number of moles of magnesium hydroxide. Simply divide the relative atomic mass of the element by Avogadro's number to get the answer in grams. c. Three samples of wax are heated to 75C. d. 132 mL b. The vapor pressure of pure benzene at this temperature is 74.61 mmHg and its density is 0.87865 g/cm3; the vapor pressure of pure carbon tetrachloride is 91.32 mmHg and its density is 1.5940 g/cm3. a. BCl3 c. 1.000. kg Multiply by the number of moles we calculated.
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