Diya tests a sample of a mineral by rubbing it on a piece of white tile. She observes a yellow mark. What property of minerals is she testing? 1.)streak
2.)luster
3.)hardness
4.)cleavage

What shape would a molecule with two bound groups and two lone pairs have?

(04.01 lc) which of the following is true about science? (5 points) select one: a. it is not influenced by social conditions. b. it is not determined by external local factors. c. political conditions are unable to influence it. d. economic concerns may prevent it from solving problems.

When scientists are ready to publish the results of their experimentation, why is it important for them to include a description of the procedures they used?