When a liquid evaporates - does it take energy from its surroundings or does it give off energy to its surroundings?

What happen when calcium carbonate react with zinc

The substances below are listed by increasing specific heat capacity value. Starting at 30 Celsius, they absorb 100 kJ of thermal energy. Which one do you expect increase in temperature the most? silver 0.239J, Aluminum 0.921 J, Lithium 3.

a certain quantity of argon gas is under 16 mmhg pressure at 16c in a 12 L vessal. How many moles of argon Are present?

What is enthalpy change

How many moles of CO2 are present in 0.220g?

What is the chemical compound of nitrogen gas?

Which of the following should be done when designing an experiment for a controlled scientific investigation? A. list the procedures B. plan the variables C. list the needed materials D. all of these

Assuming the octet rule is obeyed, how many bonds and how many lone pairs will atoms of oxygen (o) and nitrogen (n) have in order to have formal charges of + 1?

Explain why animals must eat food, but plants do not have to.

What is the theoretical yield of moles of hydrogen that can be produced from 0.032g of MG?