Desert plants have to adapt to a harsh environment. Many desert plants such as the rabbitbrush have small leaves, why? A)large leaves weigh too much B)small leaves reflect the sunlight C)small leaves taste bad to the animals D)small leaves conserve water by reducing transpiration

One similarity and one difference between an element and a mixture of elements

Imagine if during the cathode ray experiment, the size of the particles of the ray was the same as the size of the atom forming the cathode. which other model or scientific observation would have also been supported? 1. this would support dalton's postulates that proposed the atoms are indivisible because no small particles are involved. 2. this would support bohr's prediction about electrons moving in orbits having specific energy. 3. this would support bohr's prediction about electrons being randomly scattered around the nucleus in the atom. 4. this would support dalton's postulates that proposed that atoms combine in fixed whole number ratios to form compounds.

The molar mass of nickel(ni) is 58.7 g/mol. how many moles are in an 88 gram sample of nickel?