Why are lab apparatus made of ceramics

5. Which of the following can be classified as a mixture? A. Table salt B. air C. nitrogen D. gold 6. Which of the following is a heterogeneous mixture? A. Salt water B. Beef stew C. Steel D. air 7. Which of the following is true about compounds? A.

How many moles are there of a 7 M solution with a volume of 14.44 liters?

When an election is removed a second electron is call the blank energy

Consider the reaction cacn2 + 3 h2o → caco3 + 2 nh3. how much nh3 is produced if 187 g of caco3 are produced? 1. 2.13 mol 2. 63.6 mol 3. 3.74 mol 4. 36.1 mol 5. 1.06 mol 6. 72.3 mol

What type of bond is most likely being represented in row 1?

For which one of the following molecules is the indicated type of hybridization not appropriate for M the central atom? a. BeCl2 sp2 b. SiH4 sp3 c. BF3 sp2 d. C2H2 sp e. H2O sp3

P4O10 (s) = - 3110 kJ/mol H2O (l) = - 286 kJ/mol H3PO4 (s) = - 1279 kJ/mol Calculate the change in enthalpy for the following process: P4O10 (s) + 6H2O (l) → 4H3PO4 (s)

Aluminum bromide reacts with chlorine gas to produce aluminum chloride and liquid bromide, according to the chemical equation below: 2A1Br3 + 3Cl2 + 2AlCl3 + 3Br2 How many moles of Aluminum chloride are made if 779 g of chlorine gas are consumed?

When a cell is in late anaphase of mitosis, which of the following will we see?

What is the reactant (s) in the chemical equation below? 2Al (s) + 2NaOH (aq) + 2H2O () 2NaAlO2 (aq) + 3H2 (9) A. 2Al (s) + 2NaOH (aq) + 2H200) B. 2NaAlo2 (aq) + 3H2 (g) C. 2Al (s) D. 3H2 (g)