conduction of nerve impulse and muscle contraction is concerned with -a)Na,K elements.b)Ca,Mg.c)Fe,Mg.d)none?
541503
Nerve impulse is connected with Na and K while muscle contraction has to do with Ca and Mg
906746
a)silver bromide\nb) tricalcium phosphate\nc)Lithum Hydride\nd)Radium Chloride
209874
Magnesium is a natural 'calcium channel blocker'.  It helps to reduce the excitability of the nervous system and the contractility of muscles.  Vitamin B6 is important in the physiological function of magnesium and might provide additional help.  Calcium is also intimately involved in magnesium functions.\n\nNote: recent research estimates that up to 75% of Americans receive less than the recommended levels of magnesium from their diets.\n\nBest wishes.
169996
Calcium(II) Telluride\n\nCalcium ion Ca2+\nTelluride ion 2-\n\nFormula Weight 167.678 g/mol
93585
There is a sodium potassium atpase enzyme, which is required for the contraction of the heart, the potassium leaves the muscle and sodium enters the muscle, along with sodium, calcium enters, which is required for contraction. \nIn effect when there is low potassium in the body, the heart hurts due to decreased calcium entry into the muscle.
912050
I think D is incorrect.  The inside of the cell is negative compared to the outside of the cell.  Therefore, the electrical gradient of Na+ would want to move Na+ into the cell.
62664
Kinetic, potential, nuclear, chemical and electrical.
1101015
A synergistic formula of Magnesium, Vitamin B6, and Vitamin C. Magnesium is an essential mineral that supports nerve and muscle impulses. Magnesium deficiencies have been associated with confusion, occasional sleeplessness, low mood, irritability and tantrums. Vitamin B6, is essential to the nervous system and is needed for normal brain function and for the production of RNA and DNA (our genetic codes). Vitamin B6, deficiencies have been linked with low mood, hyperirritability, weak memory, tingling sensations, and fatigue. Vitamin C aids in the production of anti-stress hormones and is also a potent antioxidant. This formula was designed to support brain and nerve health.* Orange flavored, chewable tablet sweetened with fructose and sorbitol.\n\nOne tablet contains 60 mg Vitamin C, 250 mg Vitamin B6, 125 mg Magnesium.\n\nOther ingredients: sorbitol, natural orange flavor, stearic acid, vegetable stearate, silicondioxide.\n\nAs a dietary supplement, take two to four tablets daily with meals.\n\nThis product is free of corn, egg, milk, sodium, soy, wheat, yeast, added starches, synthetic dyes, artificial flavorings and preservatives.\n\n\n*This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
720665
Resting potential is determined by the weighted sum of the Nernst potential and the conductance (a measure of permeability) for each ion. Conductance plays a largest role in determining the potential. K's Nernst potential is around -90 mV while Na is around +60 mV. At rest (-70 mV), since there are more K channels allowing a slow leakage, the conductance is higher than that of Na and the potential is closer to the Nernst potential of K. During an action potential, the conductance for Na rises considerably, depolarizing the axon.
946990
FeCl3 + NaCl -> FeCl2 + NaCl3\n\n\nFeCl3 + NaCl -> FeCl2 + NaCl3\n\nthese reactions are not possible \nas this reaction can take place if iron(fe) was more reactive than sodium or fe was less electropositive than na\nhence \nthese reactions are not possible
941931
potassium iodine\nyeah, potassium iodide\nperson below me is right
426762
you know its ionic because Na is a metal while Cl isnt. a metal and nonmetal almost always from an ionic bond. to draw a lewis digram, determine how many valence electons are in each and draw the diagram.. its kinda hard to explain without actually drawing it.. consult a chem bk.
741136
(a): Si+, P2+\n\n(b) Ar+, S-\n\n(c) Ca+, Cl2-\n\nBut the other answers that you gave are also correct.
979618
Mg2+ and not Mg2-\nThis ion lacks 2 electrons to be neutral, so it is positively charged.
321944
Calcium is essential in muscle contraction, oocyte activation, building strong bones and teeth, blood clotting, nerve impulse transmission, regulating heartbeat, and fluid balance within cells. In the U.S., between about 50% and 75% of adults do not get sufficient calcium in their diet. Adults need between 1,000 and 1,300 mg of calcium in their daily diet.
513498
salt.\n\n(Sodium Chloride)
833753
sodium, potassium, chloride, trace amounts of other metal ions.