In monostremes the placenta absors oxygen and food from the mothers blood.

What does the plus mean next to an element

Limiting Reactant Worksheet 1. Consider the following reaction: 2 AI + 5 HBr 2 AIBT, 3 H, a. When 3.22 moles of Al reacts with 4.96 moles of HBr, how many moles of H, are formed? b. What is the limiting reactant? c. What is the excess reactant?

How many electron does a neutral atom of calcium have

Which uses electromagnetic radiation to discover the properties and composition of bodies in space? space probe space station space shuttle space observatory

Which of the following defines the process that decreases the number of slow moving neutrons to prevent the chain reaction in a nuclear reactor from going too fast?

A solution of a compound with a known extinction coefficient of 23,100 M-1cm-1 has an absorbance of 0.735 in a 1.30cm path length, what is the concentration of the solution

Balance the following equation with the smallest whole number coefficients. Choose the answer that is the sum of the coefficients in the balanced equation. Do not forget coefficients of "one". RbOH + H3PO4 → Rb3PO4 + H2O

What is the temperature of 100 liter container having 1 mole of an ideal gas at a pressure of 20 kilopascals

5.2*10^26 molecules of ch4 in volume

Which of the following statements about igneous rocks is correct A. intrusive igneous rocks are formed when magma is called above the ground. B. Extrusive igneous rocks are formed when magma is cooled above the ground C.