During summer, the scorpion constellation can be easily seen. During winter, the Scorpion cannot be seen. How would you explain this observation? A. In winter, the Scorpion is usually hidden by the moon.

B. In winter, the Scorpion is covered by the Milky Way.

C. In winter, the Scorpion is in the sky during the day.

D. In winter, the Scorpion is often hidden by clouds.

You would be correct, boiling water does disinfect contamination.    the property of disinfecting means to kill  germs, bacteria and other pathogens or contamination  that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate.  the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.

Product should she record in last row of the table

rosa was looking for patterns to predict the products of chemical reactions. she recorded three similar decomposition reactions in the table.she should record 2licl + 3o2.

in the last row of the table. it is the thermal decomposition of chlorate lithium, hence, she should record these products as: lithium chloride ( 2licl ) and oxygen ( 3o2 )   2 > 2 licl + 3o2.

D=m/v =57.9/3 = 19.3 g/cm^3