What tools should a scientist use to measure an object in milligrams

In the investigation of an unknown alcohol, there was a positive Jones test and a negative Lucas test. What deductions may be made as to the nature of the alcohol? State reasons for your deductions.

Sponges can reproduce sexually and asexually, but avoid self-fertilization. What is an advantage of avoiding self-fertilization? Why would budding an exact clone be better?

A flask with a volume of 125.0 mL contains air with a density of 1.298 g/L. what is the mass of the air contained in the flask?

What set of compounds illustrates the law of multiple proportions. A. N2O, NO, NO2 B. NaCl, NaBr, Nal. C. CH4, CO, CCl4. D. all of these

Calculate the weight of an average egg if a dozen of eggs equals an average weight of 21 ounces.

Which of the following has the greatest first ionization engergy li, be, b or c

If we know that 10.0 cm3 of ice has a mass of 9.19 g what is the density of ice

1. The is the particle in the nucleus of the atom that carries a positive charge and is counted to identify the atomic number. What's the answer

How many grams are there in 5.00 moles of lead Pb?

A large body in space that orbits a star and does not produce light of its own