For a 0.25M CaCl2 solution. calculate the concentration of Ca2+ abd Cl-​

Which three sentences in this excerpt from arthur conan doyle's "the contest" suggest that the author's tone is mocking?

Then she heard his step on the stair away down on the first flight, and she turned white for just a moment. the phrase "she turned white for just a moment" is mainly used to show that della has very fair skin. is afraid of jim's reaction. is beginning to get an illness. had become extremely angry.

Which statement best expresses a claim a.although many people believe homework is a crucial part of school, there is evidence to suggest that homework may not be as valuable as once thoughtb.the amount of homework given by some high school teachers is insane and actually has negative effects on other important aspects of a student's life c.i would have so much more time to do the extracurricular activities and hobbies i enjoy if i did not have to spend most of my evenings doing homework d.some schools have adopted homework policies that limit the amount of homework that teachers are allowed to assign their students each night