Helen adjusts the armature of an electric generator by increasing the number of coils around the iron core. what is helen most likely trying to do?

Which characteristic makes legumes a good food source for food-insecure populations? A) They are a source of starchy carbohydrates B) They are inexpensive to cultivate C) They are a source of fermented sugars D) They are bred over thousands of years

Which of the following shows the correct order of increasing lattice energy for the given compounds? A. Na2O < K2O < Li2OB. K2O < Na2O < Li2OC. Na2O < Li2O < K2OD. Li2O < Na2O < K2O

What is the relationship between the release of energy as heat and calories

As electrons orbit the nucleus, according to bohr, they move in a. random directions. b. the same direction. c. opposite directions. d. an unpredictable pattern.

List 3 examples of velocity

How can a chemical reaction be sped up? Pack in more of the reactant to increase the_.

How does a mixture of benzoic acid and benzaldehyde can be isolated separately by extractions?

What is a compound? a) a combination of two or more substances that are not chemically combined b) a combination of two or more elements that are combined in a certain ratio

A gas has a volume of 75mL at a pressure of 200.0 kPa. What will be the new volume be in mL if the pressure is decreased to 60.0 kPa in sig figs

Give two reasons why it's important to work with a partner in a lab