what is the amount of heat absorbed when the temperature of 75 grams of water increases from 20degrees C to 35 degrees c

The most common charge that a nitrogen atom takes is - 3. If a nitrogen atom were to assume a - 2 charge, how many 2p electrons would the N2 - ion have?

How many electrons does strontium have to give up to achieve a noble gas electron configuration?

The chemical formula for table sugar is c12h22o11. what can you tell from this formula

What is the property of liquids to mix in all proportions and form a homogenous solution

By what factor does the rate change in each of the following cases (assuming constant temperature) ? (a) A reaction is first order in reactant A, and [A] is doubled. (b) A reaction is second order in reactant B, and [B] is halved.

Complete the following statement by checking all that apply Creativity allows scientists to develop multiple approaches to solving problems. adapt to changes in scientific knowledge. look at old problems in new ways.

The atomic weight of hydrogen is 1.00794. a. True b. False

Describe What kind of ions do metals form? What kind of ions do nonmetals form?

A car is driven through streets treated with salt and then parked in a warm garage. a) How will the rate of rusting compare with a car that has not been driven in the streets treated with salt but left parked outside?

Amalgam is an alloy that contains mercury and other metals. Which of these atoms would most likely form metallic bonds with mercury? Check all that apply. bromine copper hydrogen iodine silver tin