One kilometer (km) equals 1000 meters (m). how many meters are equal to 0.044 km?

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?

Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]