The body's nervous system is made up of the brain, the spinal cord, the retina ,and many other nerves. the circulatory system is made up of the heart, arteries, veins, and capillaries. the nervous system tells the heart when to beat, and the circulatory system supplies nerve cells with blood. which of the following best describes the relationship between the nervous system and the circulatory system?

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?

How many grams of ammonia would be produced by the decomposition of 16.93 mlof hydrazine? (the density of hydrazine is 1.021g/ml)