The center of this seesaw is used to balance the board with the seats. The children can easily move up and down without much force. the seesaw is an example of wich simple machine?

If a reaction starts with 0.480 mol Mg how many moles of silver are produced Mg + 2AgNO3 - -> Mg (NO3) + 2Ag

Why is hydrogenated vegetable oil used in soft margarine

Which of the following molecules would have the strongest London Dispersion Force? A. F² B. Cl² C. Br² D. I²

N an exothermic reaction, what is true of the enthalpy? A. It has increased. B. It has decreased. C. It has remained unchanged. D. It has, at minimum, doubled.

Camphor, a saturated monoketone from the Asian camphor tree, is used among other things as a moth repellent and as a constituent of embalming fluid. If camphor has by high-resolution mass spectrometry, what is its molecular formula?

A rope experiences three 400 N forces to the left and three different 410 N forces to the right. (A) Will accelerate to the left (B) Will accelerate to the right (C) Will not accelerate

An ionic bond involves the transfer of what? * Olons Protons Electrons Neutrons

During an Experiment a scientist notes that a sample turned red. which kind of data did the scientist record A. average data B. quantitative data C. measured data D. qualitative data

Why is chemistry important for the study of living things

How much does radon cost per gram