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The rate of secretion of parathyroid hormone increases when?
serum calcium levels increase
In terms of particles how and why the rate of reaction changes during the reaction of calcium carbonate with hydrochloric acid.?
The chemical reaction goes faster if calcium carbonate is powdered.
Is calcium nitrate explosive?
Under normal circumstances calcium is not explosive. But it is somewhat reactive. Remember that calcium is an Alkaline Earth Metal in Group 2 of the periodic table. It will react with air and form an oxide or nitride coating. And it reacts with water and forms hydrogen, but not at a rapid rate. It is difficult to set alight, but will burn intensely when ignited. As a raw metal, it is fairly stable, but is stored in a liquid to keep it from reacting with air or the water in air. Use the link below to learn more.
How might you increase the reaction rate between calcium carbonate and acid?
Possible actions:- stirring- heating- increase of the acid concentration- fine grinding of calcium carbonate- increasing the pressure
Why do hydroponic nurients precipitate?
In the soil nutrients bond to soil/ colloidal particles; in hydroponics there is no soil only a volume of liquid. As the medium is liquid the individual chemical elements are more or less free to move and are exposed to other elements are a much greater rate than what they would be in the soil. This results in chemical bonding, some of the new products formed are insoluble in water (unless the pH and temperature are manipulated); these are normally heavier and precipitate to the bottom of the mixing/ storage tanks. For this reason some nutrients are only added to the solution just prior to use so that they do not precipitate out (Iron/ Fe being one of them).
What is vat rate of calcium hypochlorite in maharashtra?
what is vat rate of calcium hypochlorite in maharashtra
Which nutrient increases the absorption rate of calcium?
Vitamin D
What effect does changing the concentration of calcium ions have on the coagulation of milk?
the rate of coagulation increases as the concentration of calcium ions increase.
How does increased ventilation rate affect arterial blood?
It will induce a respiratory alkalosis, as carbon dioxide is washed out of the blood by the increased ventilation rate.
What vitamin influences the rate at which the kidneys excrete calcium?
Vitamin D
When the calcium ion concentration of the blood rises above normal secretion of the hormone calcitonin?
increases the rate of calcium ion excretion
Why should calcium chloride manufacturers use powdered calcium carbonate?
To increase the rate of reaction so that it takes less time to be manufactured.
The rate of secretion of parathyroid hormone increases when?
serum calcium levels increase
What effect changing the concentration of calcium ions has on the rate of coagulation of milk?
Rennin is an enzyme that converts the soluble milk protein caseinogen into the insoluble protein paracasein, producing the curd that can be processed into cheese or other milk products. Inorganic ions such as metal ions can act as cofactors. The ion may combine with either the enzyme or the substrate to reduce the activation energy. These ions are called activators. Activators are thought to make the enzyme substrate complex form more easily. For example, the action of amylase on starch is quicker in the presence of chloride ions. Calcium ions are required to activate the enzyme rennin. In this demonstration, calcium ion is removed by precipitating it as calcium citrate. In the tube containing the sodium citrate, calcium citrate forms as a precipitate. what effect changing the concentration of calcium ions has on the rate of coagulation of milk how calcium ions influece the activity of rennin in bringing about the coagulation of milk because it does
Why using phosphate buffer and magnesium sulphate and calcium chloride and ferric chloride for dilution water in BOD5 test?
magnesium sulphate, calcium chloride and ferric chloride are added to provided optimum environment and phosphate buffer is added to slow down the rate of death of microbes.
What effect does calcium have on the heart rate?
The resting membrane potential is maintained by the distribution of positive and negative charged ions across both sides of the cell membrane. At rest, calcium concentration in cells of the heart is low as compared to the outside. At action, calcium channels in the membranes open, thereby allowing calcium to rush into the cells. So raising the heart rate.
Effect of calcium ions on the heart rate?
Calcium has no effect on heart rate. It does, however, have an effect on how hard the heart squeezes (inotropic effect). Heart rate is effected by the slow sodium channels in the pacemaker cells in the right atrium (and other pacemaker cells if the SA node is malfunctioning).
