An irrelgular object with a mass of 118g displaces 25ml of water when placed in a graduated cylinder. What is the density

Which chemical property of matter describes how well things burn?

What is the number of valence electrons that most atoms prefer?

Nitrogen (N) has an atomic number of 7 and an atomic mass of 14. Which of the following correctly shows the electron arrangement for nitrogen? A. 2, 7 B. 2, 5 C. 2, 2, 3 D. 2, 8, 4

What is the the atomic mass of carbon-14 A.) 6 amu B.) 12 amu C.) 14 amu D.) 2 amu

When the volume changes from 63.5 mL to 69.2 mL, what is the final pressure if the initial pressure was 735 mmHg pressure? law used?

A base a. causes phenolphthalein indicator to change from colorless to pink. b. donates a proton in a proton transfer reaction. c. accepts electrons in an electron transfer reaction. d. produces hydrogen ions in solution. e. does none of the above.

Which of these is an indicator that a chemical reaction has occurred? precipitate forms temperature remains the same color is diluted mass increases

The half-life of isotope X is 3 days, how long will it take for one half of 10g sample to decay

A 69.1-g sample of h2o contains how many molecules of water?

Why is ac used instead of dc