One mole of Na2SO4 is 6.022 * 10^(23) molecules. We can divide this into the quantity in the question to find a value of 1.5/6.022 = 0.2491 moles. Rounded to two significant figures and put in scientific notation, we can rewrite this quantity as 2.5 * 10^(-1) moles
Length of 1 side 1.2*10^-5km =1.2*10^-5*10^5 =1.2cm
<span>volume of the cube (1.2)^3=1.728 cm^3 </span>
<span>density= mass/volume= 1.1/1.728=0.636 g/cm^3</span>
Magnesium has 22 electrons and 24 protons
Answer:The farming methods promoted by the California Ricelands Habitat Partnership are best described as beneficial to both farmers and wetland species because California Rice Commission and individual growers to further enhance the habitat [ value of California’s rice fields to waterbirds. This collective approach creates synergy for fully realizing the wildlife values in California rice