Calculate the mass of hydrogen formed when 27 g of aluminum reacts with excess hydrochloric acid according to the balanced equation below. 2al + 6hcl → 2alcl3 + 3h2.

Ang lupa ng libre, lupain ng katarungan, ang tahanan ng kabutihan - ang mga ito ay ilang mga halimbawa ng mga islogan.

Only one apple is left

Which of the following is an example of an opposing signal? no examplthates given.   i would say, that traffic lights in a city at major intersections direct the flow of traffic in opposite directions so would be an example.also, stop signs on either side of the same street would be an example. at a train crossing, the light for allowing car traffic in opposite directions or not would be another example.

May strike workers if the load swings, twists, or turns.