which of the following are properties of metals (choose all that apply) \nslippery \nmalleable \ndense…

which of the following are properties of metals (choose all that apply) \nslippery \nmalleable \ndense \ncold \nshiny \nheavy \nbrittle \nconductor of heat \nyou have four water samples at different temperatures. in which sample are the molecules vibrating at the fastest speed? \nwater at 37°c \nwater at 299 k \nwater at 99°f \nwater at 99°c

which of the following are properties of metals (choose all that apply) \nslippery \nmalleable \ndense \ncold \nshiny \nheavy \nbrittle \nconductor of heat \nyou have four water samples at different temperatures. in which sample are the molecules vibrating at the fastest speed? \nwater at 37°c \nwater at 299 k \nwater at 99°f \nwater at 99°c

Answer

Explanation:

Step1: Identify metal properties

Metals are known for being malleable (able to be hammered into thin sheets), dense, shiny (lustrous), heavy (high - density related), and good conductors of heat. Slippery is not a typical metal property, cold is a relative perception not a fundamental property, and metals are not brittle (non - metals are often brittle).

Step2: Compare water temperatures

Convert all temperatures to the same unit (Celsius). The conversion formula from Kelvin to Celsius is $T_{C}=T_{K}- 273.15$, so $299K$ is $299 - 273.15=25.85^{\circ}C$. The conversion formula from Fahrenheit to Celsius is $T_{C}=\frac{5}{9}(T_{F}-32)$, so for $99^{\circ}F$, $T_{C}=\frac{5}{9}(99 - 32)=\frac{5}{9}\times67\approx37.2^{\circ}C$. Higher temperature means faster molecular vibration. Among $37^{\circ}C$, $25.85^{\circ}C$, $37.2^{\circ}C$, and $99^{\circ}C$, the water at $99^{\circ}C$ has the highest temperature.

Answer:

  • For the metal properties question:
    • malleable
    • Dense
    • shiny
    • heavy
    • conductor of heat
  • For the water - molecule vibration question: water at 99°C