An element's blank is its row in the periodic table

A steel tank is completely filled with 1.90 m3 of ethanol when both the tank and the ethanol are at 32.0c. when the tank and its contents have cooled to 18.0c, what additional volume of ethanol can be put into the tank?

Explain why the rusting of an iron bar decreases the strength of the car?

Which of the following is a source of dissolved substances in the ocean? a. chemical weathering of rocks b. evaporation of water from the seas and ocean c. excretions from marine organisms d. melting icebergs and sea ice

Determine the mass of 10.55 x 1029 molecules of cadmium chloride, CdCl, ().

Which of the following is a extensive property of a bubble of air? A. Temperature B. Radius C. Density D. Percent oxygen

Select the correct answer. In the graph, what effect would adding a catalyst have on D? A. It would decrease. B. It would increase. C. It would stay the same. D. You cannot tell from this graph.

Estimate the heat of neutralization of H3PO4 in kJ/mol given these dаta: Heat transferred = 2.5 x 102 J Moles of H3PO4 = 1.4 x 10-3 mol Moles of NaOH = 5.0 x 10-3 mol

Consider the elemts Ca, Ba, As, and Bi. Which has the ... largest radius? highest electronegativtity? Highest Ionization Energy?

How do guys Make sperm?

Maya's playroom is 12 m2. The length of the room is 3 m. What is the width? 4 m 8 m 15 m 36 m