Question

which of the following are properties of metals (choose all that apply)
slippery
malleable
dense
cold
shiny
heavy
brittle
conductor of heat
you have four water samples at different temperatures. in which sample are the molecules vibrating at the fastest speed?
water at 37°c
water at 299 k
water at 99°f
water at 99°c

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