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Indicate whether the rate of dissolving increases or decreases for each of the following. a)heat the solution b)stir the solution c)grind the solution?
Wiki User
∙ 8y ago
All these processes increase the rate of dissolution.
Wiki User
∙ 8y ago
Wiki User
∙ 8y agoAll will increase the rate of dissolving.
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When a substance changes from a solid to a liquid its density normally decreases. What is happening to the substance's mass and volume to cause this decrease in density?
A decrease in density would indicate a reduction in mass relative to the volume. If the mass decreases but the volume remains the same or increases, then the density would decrease.
Is salt dissolving a chemical reaction?
Yes. A salt is an ionic compound and so dissolving (or hydrolyzing) it is a chemical reaction. An example with sodium chloride (table salt): NaCl (solid) -> Na+ + Cl- The charges on the products indicate that they are aqueous (in solution). Since the reactant breaks apart into it's products, this is a dissociation reaction.
Indicate whether the following pairs of compounds are constitutional isomers stereoisomers or identical molecules?
Indicate whether each of the following pairs represent constitutional isomers, the same compound, or different compounds 2-methoxybutane and 3-methyl-2-butanol
When pH decreases does hydrogen ion concentration increase or decrease?
Decreases, because pCO2 is an acid (carbonic acid gas). On the cellular level the CO2 diffuses into the red blood cell (from periferal tissue) and is in the combination with H2O forming H+ and HCO3-: CO2 + H2O <-> H2CO3 <-> H+ + HCO3-. The H+ cannot diffuse out (bigger concentration cause diffusion) of the red blood cell, because its membrane is relatively impermeable to cations. However, the bicarbonate (HCO3-) can diffuse, which leaves hydrogen-ions accumulated in the blood and the pH decreases.
What does a creatinine level of 1.44mg indicate?
i would think that it would indicate issues with kidneys
Vertical columns in the periodic table indicate what information?
its called a family or group or both of them.
What is A measurement system used to indicate the concentration of Hydrogen ions in solution?
the pH scale. as the pH of the solution decreases (below 7), the concentration of H+ ions increases. as the pH of the solution increases (above 7), the concentration of H+ ions decreases. (if the pH is 7, the solution is neutral).
A negative correlation between peoples physical health and their marital happiness would indicate?
It means as the health of people increases, their marital happiness decreases or gets worse.
How do real estate trends indicate a change in the economy?
Real estate trends indicate a change in the economy from a variety of indications. When the price of real estate increases it indicates that the economy is booming, however, when it decreases the economy is becoming unstable.
What effects would the sympathetic and parasympathetic system have on insulin secretion?
Studies seems to indicate that the sympathetic system decreases insulin secretion, while the parasympathetic system increases insulin secretion.
What is happening to the substances mass and volume to cause this decrease in density?
A decrease in density would indicate a reduction in mass relative to the volume. If the mass decreases but the volume remains the same or increases, then the density would decrease.
When a substance changes from a solid to a liquid its density normally decreases. What is happening to the substance's mass and volume to cause this decrease in density?
A decrease in density would indicate a reduction in mass relative to the volume. If the mass decreases but the volume remains the same or increases, then the density would decrease.
How does a stars mass indicate?
When a star is at the end of its lifetime its mass increases.
What does sudden decreases in barometric pressure indicate?
A sudden decrease in barometric pressure is a sign that a storm is coming.
How does a stars mass indicate its lifetime?
When a star is at the end of its lifetime its mass increases.
How does a star's mass indicate lifetime?
When a star is at the end of its lifetime its mass increases.
Indicate how each of the following would shift 1. the marginal cost curve 2. the average variable cost curve 3. the average fixed cost curve and 4. the average total cost curve of a manufacturing firm?
a. Property taxes are fixed costs, so this would decrease AFC, which in turn decreases ATC.b. Wages are typically variable costs, so this would increase both MC and AVC, which in turn increases ATC.c. Electricity is typically a variable cost, so this would decrease both MC and AVC, which in turn decreases ATC,d. Insurance is a fixed cost, so this would increase AFC, which in turn increases ATC.
