The answer is C. No all cells have cell walls. Prokaryotes don’t have a nucleus or chloroplast. Leaving C to be correct
Answer: Left Arrow Far right arrow and center left arrow
Explanation:
These three arrows are correct due to heat transfers to cooler temp environments which allows the expansion of speed for molecules in their environment.
Answer:Tap water to ice cube
Explanation:
The sign's glass absorbed 25466.7 J
<h3>
Further explanation</h3>
Given
The temperature of glass : 23.5 °C to 65.5 °C
mass = 905 g
the specific heat capacity = 0.67 J/g °C
Required
Heat absorbed
Solution
Heat absorbed by sign's glass can be formulated :
![\tt Q=m.c.\Delta T](https://tex.z-dn.net/?f=%5Ctt%20Q%3Dm.c.%5CDelta%20T)
ΔT=65.5 - 23.5 = 42
![\tt Q=905\times 0.67\times 42\\\\Q=\boxed{\bold{25466.7~J}}](https://tex.z-dn.net/?f=%5Ctt%20Q%3D905%5Ctimes%200.67%5Ctimes%2042%5C%5C%5C%5CQ%3D%5Cboxed%7B%5Cbold%7B25466.7~J%7D%7D)
Answer: Heterogenous mixtures are the ones in which we can see the different components clearly. Air is considered to be homogenous, because we don't see the different noble gases' particles floating around. Salt water is also homogenous, because salt dissolves almost completely into water, becoming hard to see without the proper equipment salt particles in it. Steel is also homogenous, since the metals that compose it are mixed during the heating. The only heterogenous would be soil, because we can see different particles in it, with different sizes, shapes, colors, etc without having to use special equipment.