### Question:A hot needle sinks when put on the surface of cold water. Will a cold needle float or sink in warm water? Please choose your answer with the best explanation for that answer.### Answer Options:**1st attempt**Choose one:- **A.** The temperature is irrelevant. If the hot needle sinks, the cold needle sinks.- **B.** A cold needle has an even higher density than a hot needle, so it will sink.- **C.** The hot needle breaks the surface tension of the water, causing it to sink. A cold needle cannot break up the surface tension of the water, so it floats.- **D.** Convection forces from the hot water will cause the cold needle to float.

A hot needle sinks when put on the surface cold water. will a cold needle float or sink warm water.

1st attempt i See Peric Choose one: O A. The temperature is irrelevant. If the hot needle sinks, the cold needle sinks. O B. A cold needle has an even higher density than a hot needle, so it will sink. O C. The hot needle breaks the surface tension of the water, causing it to sink. A cold needle cannot break up the surface tension of the water, so it floats. O D. Convection forces from the hot water will cause the cold needle to float.

1st attempt i See Peric Choose one: O A. The temperature is irrelevant. If the hot needle sinks, the cold needle sinks. O B. A cold needle has an even higher density than a hot needle, so it will sink. O C. The hot needle breaks the surface tension of the water, causing it to sink. A cold needle cannot break up the surface tension of the water, so it floats. O D. Convection forces from the hot water will cause the cold needle to float.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

models are functional tools that scientists use to explain complex behaviors. What is a benefit of the Spacefill model? what is a draw back
Mercury has a heat of fusion of 2.29 kJ/mol and a heat of vaporization of 59.11 kJ/mol. What is the energy absorbed or released when 6.5 moles of liquid mercury freezes into a solid? a. -380 kJ/mol b. -15 kJ/mol c. +15 kJ/mol d. +380 kJ/mol
What kinds of attractive forces, including chemical bonds, would be present between the particles in: (d) BrCl(l ) a. dipole-dipole b. London forces c. covalent bonding d. H-bonding e. ionic bonding (e) NaCl(s) a. dipole-dipole b. London forces c. covalent bonding d. H-bonding e. ionic bonding (f) Na2SO4(s) a. dipole-dipole b. London forces c. covalent bonding d. H-bonding e. ionic bonding
11. At the end of a cooking cycle, a pressure cooker contains a mixture of water, steam, and food at a temperature of 120°C and 1.5 atm of pressure. The pressure is valve is opened and the pressure decreases, which alters water's boiling point and causes the contents of the pressure cooker to cool rapidly. Which statement best explains why the contents cooled rapidly after the pressure was released? A. Water lost heat as it vaporized. B. Water absorbed heat as it vaporized. C. Water lost heat as it condensed. D. Water absorbed heat as it condensed.
MCQ 144: The attraction of water molecules to the ions on the surface of ionic solid is termed as A. ion-dipole attractions B. dipole interaction C. dipole reaction D. ion-attraction
Match the following Column A Column B 1. Cohesion a. Evaporation 2. Adhesion b. The amount of energy a substance can retain. 3. Polarity Water molecules stick to a different material. C. 4. High heat capacity d. Water molecules form hydrogen bonding with each other. e. Density f. A molecule with a partial positive and negative side.
Which statement is correct about the boiling? select the correct answer. O a. a dynamic equilibrium exists between the liquid and vapor phase. O b. the molecular bonds in the liquid are broken rapidly. O c. the vapor pressure of the liquid equals the external pressure above the liquid surface. O d. the vapor pressure of the liquid equals the pressure exerted by its vapor phase. O e. the vapor pressure of the liquid is less than the external pressure above the liquid surface. A Moving to another question will save this response. 234 44,461 23 APR 13 étv
Silver amalgam fillings were the traditional fillings that dentists used when someone had a cavity (a hole in their tooth). When the temperature of an amalgam filling is lowered, the size of the filling will most probably O A. increase. B. decrease. O C. decrease in width as it gets longer. O D. may increase or decrease.
Indicate the type of solid in each example lattice points type of crystal sodium phosphate ammonia, NH3 helium iron diamond While sodium phosphate is a solid, glass is an solic a. jons b. molecules C. atoms d. ionic e. molecular f. atomic g. amorphous h. crystalline
3. It is a quantity of heat need to convert a mole of liquid into gas phase at a specified temperature? a. molar enthalpy of vaporization b. molar enthalpy of boiling c. molar enthalpy of freezing d. molar enthalpy of evaporation
Temperature at which the vapor pressure of a liquid is equal to the atmospheric pressure above the liquid. a. absolute zero b. boiling point c. Boyle's Law d. Charles' Law e. cohesive force f. condensation g. disruptive force h. kinetic energy i. law of conservation of matter j. melting point k. potential energy l. sublimation
If the answer is not in the choices, write the correct answer