Chemistry, 23.02.2021 01:00, borgesalfonso12
When magnesium ribbon is placed in sulfuric acid, a chemical reaction takes
place and heat energy is given off.
Liang and Naranbaatar are planning an investigation into the effect of the
length of magnesium ribbon on the increase in temperature. They decide to
carry out some preliminary work.
Explain what preliminary work they could do and how this would help them
plan their investigation.
Answers: 1
Chemistry, 21.06.2019 13:30, kellywelly82
A48 g piece of ice at 0.0 ∘c is added to a sample of water at 7.4 ∘c. all of the ice melts and the temperature of the water decreases to 0.0 ∘c. how many grams of water were in the sample?
Answers: 1
Chemistry, 22.06.2019 19:00, nayashuntel
How many liters of ethylene glycol antifreeze (c2h6o2), with a density of 1.100 g/l, would you add to your car radiator containing 15.0 kg of water if you needed to protect your engine to - 21.5°c? for water, kf = 1.86°c m -1.
Answers: 1
Chemistry, 23.06.2019 04:20, milkshakegrande101
The equation below shows the reaction of zinc with hydrochloric acid (hcl). zn (s) + 2 hcl (aq) —> zncl2 (aq) + h2 (g) what will happen if the concentration of hcl is decreased? a. more zncl2 will be produced. b. the reaction rate will slow down. c. the hydrochloric acid will become more acidic. d. the reaction will produce water instead of hydrogen gas.
Answers: 1
When magnesium ribbon is placed in sulfuric acid, a chemical reaction takes
place and heat energy i...
Mathematics, 14.12.2019 02:31
English, 14.12.2019 02:31
Mathematics, 14.12.2019 02:31