Raising 100 grams of water from 40 to 60 °c (the specific heat capacity of water is 1 cal/g) requires the addition of What? A) 120 calories B) 1500 calories C) 2000 calories D) 2400 calories

A technician prepared a solution by heating 100 milliliters of distilled water while adding KCl crystals until no more KCl would dissolve. She then capped the clear solution and set it aside on the lab bench.

Compare the advantages and disanvantage of fossil fuel use

363 mL of a solution of NaOH is diluted to a final of 1400mL and and the new molarity is 0.286 calculate the original molarity of the base Report your answer with 4 decimal places

Raising the temperature speeds up the rate of the chemical reaction by increasing what?

Unknown element x is a metal that ionically bonds to sulfur. is the formula, x3s feasible? why or why not? a) it is feasible. the three metallic ions each receive an electron from sulfur. b) no, it is not feasible.

What mass of zinc oxide would be produced by the thermal decomposition of 375 grams of zinc carbonate? 162 grams 44 grams 243 grams 250 grams

Which is usually associated with a faster reaction rate? A. shaking pepper into the reactants B. removing heat energy from the reactants C. using a highly concentrated solution in the reactants D.

Bacteria multiply by what?

Which headings best complete the chart? Walt made a study chart listing uses for two types of electromagnetic waves.

Identifying How to Stay Safe during a Tornado Use the drop-down menus to complete each statement about tornado safety.