What was helium used for in the past?

Which of these illustrates how ocean and land ecosystems are connected? A. Marine turtles eat mats of floating algae and are eaten by sharks. B. Krill consume phytoplankton that capture energy by photosynthesis. C.

What was concluded about the structure of the atom as the result of the gold foil experiment? (1) A positively charged nucleus is surrounded by positively charged particles. (2) A positively charged nucleus is surrounded by mostly empty space.

Which principal energy level can hold a maximum of 18 electrons?

A ph of 10 is how many times as basic as a ph of 7

The nucleus of an atom is dense and positively charged. What was observed when positively charged particles were radiated onto a gold atom during Rutherford's experiment because of this? Negative charges were concentrated at the center of the atom.

If maltose undergoes hydrolysis what subunits does it results to?

Find the total mass of three diamonds that have masses of 14.2 grams, 8.73 grams, and 0.912 gram

What is the correct equilibrium constant expression for this equation? 2C0F, (g) CO2 (g) + CF_ (g)

Write the mathematical expression that allows you to solve for the oh - concentration in water when you know only the h3o + concentration.

How much energy is needed to melt 47.6g of water