Two negatively charged particles are placed close together. Which of the following best describes their interaction?

A scientist dissolved a white powder in water and noted that the resulting solution was acidic. Why should the scientist not infer that the white powder contained hydrogen ions?

Define a cardiovascular disease.

Describe the roles of bacteria in the nitrogen cycle

What kind of living and non living things do you think a marine biologist studies

Make a haiku about forests and fisheries. It's a weird assignment but it's urgent

Hydrogen ion concentration in vinegar

Why does it matter from which organ or tissue type the cancer developed

The nerve cells in the human nervous system seldom undergo mitosis. Based on this information, explain why complete recovery from injuries to the nervous system usually doesn't occur.

A protein was purified to homo - geneity. Determination of the mass by gel-filtration chro - matography yields 60 kDa. Chromatography in the pres - ence of 6 M urea yields a 30-kDa species.

Which of the following tools should a scientist use to measure an object in meters? Electronic balance Pan balance Tape measure Thermometer