The specific heats of two natural substances are shown in the table. Specific Heat
Natural Substance Specific Heat
Wet Mud
2.5 J/g °C
Sandy Clay
1.4 J/g °C
A pile of wet mud and a pile of sandy clay are placed next to each other on sunny day.
If the temperature of esch pile
equal and allowed to cool in the shade for a few
minutes, which substance is likely to show a lower temperature and why? (4 points)
• Wet mud, because it released more heat while placed in the sun.
• Sandy clay, because it absorbed more heat while placed in the sun.
• Wet
mud, because it requires less energy to increase its temperature. ts
• Sandy clay, because it needs to release less energy
to decrease its temperature

Which features are shown in the image? check all that apply. folds o anticlines o synclines o normal faults ostrike-slip faults

Complete the following reactions using word and balanced equations including states. dilute phosphoric acid is added with a calcium hydroxide solution.

Consider three unlabeled bottles, each contain small pieces of one of the following metals. - magnesium - sodium - silver the following reagents are used for identifying the metals. - pure water - a solution of 1.0 molar hcl - a solution of concentrated hno3 (a) which metal can be easily identified because it is much softer than the other two? describe a chemical test that distinguishes this metal from the other two, using only one of the reagents above. write a balanced chemical equation for the reaction that occurs. (b) one of the other two metals reacts readily with the hcl solution. identify the metal and write the balanced chemical equation for the reaction that occurs when this metal is added to the hcl solution. use the table of standard reduction potentials (attached) to account for the fact that this metal reacts with hcl while the other does not. (c) the one remaining metal reacts with the concentrated hno3 solution. write a balanced chemical equation for the reaction that occurs. (d) the solution obtained in (c) is diluted and a few drops of 1 m hcl is added. describe what would be observed. write a balanced chemical equation for the reaction that occurs.