Mac mixed 24 g of substance a and 12 g of substance b to form 10 g of substance c and a certain amount of substance d. which statement is correct? the mass of substance d was 2 g greater than the mass of substance a. the mass of substance d was 10 g greater than the mass of substance b. the mass of substance a was equal to the total mass of substance c and substance d. the mass of substance a was equal to the total mass of substance b and substance d.
Answers: 1
Chemistry, 21.06.2019 22:20
Calcium hydride (cah2) reacts with water to form hydrogen gas: cah2(s) + 2h2o(l) → ca(oh)2(aq) + 2h2(g) how many grams of cah2 are needed to generate 45.0 l of h2 gas at a pressure of 0.995 atm and a temperature of 32 °c?
Answers: 2
Chemistry, 22.06.2019 22:40
Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent
Answers: 1
Chemistry, 23.06.2019 11:00
The standard emf for the cell using the overall cell reaction below is +2.20 v: 2al(s) + 3i2(s) → 2ai3+(aq) + 6i-(aq) the emf generated by the cell when [ai3+] = 3.5 × 10-3 m and [i-] = 0.015 m is v. the standard emf for the cell using the overall cell reaction below is +2.20 v: 2al(s) + 3i2(s) 2ai3+(aq) + 6i-(aq) the emf generated by the cell when [ai3+] = 3.5 × 10-3 m and [i-] = 0.015 m is v. 2.36 2.24 2.21 2.51 2.04
Answers: 2
Chemistry, 23.06.2019 15:30
How is the electron sea model of metallic bonding different from the band theory? how are they the same? give at least one similarity and one difference between the models
Answers: 3
Mac mixed 24 g of substance a and 12 g of substance b to form 10 g of substance c and a certain amou...
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