Enter the chemical equation 2h (aq) s2 - (aq) →h2s (g).

If a light bulb is missing or Broken in a parallel circuit, will the other bulb light

What are the indicators for determining acids?

Fossil originally has 254 g of carbon-14 but currently has 127 g of carbon-14 the fossil is most likely A 17,190 years old B 22,920 years old C 5730 years old D 11,460 years old

Why is potassium sulfide's formula K2S?

Define a catalyst and explain a catalyst's role in a chemicalreaction.

What could you determine about a gold necklace that bubbles when it is exposed to an acid?

Why did we change our understanding of where life comes from?

If the theoretical yield of the reaction below corresponds to 25.3 g and the percent yield of the reaction is known to be reproducibly 81.1%, calculate the actual yield. Given: Li2O + H2O → 2 LiOH

A 2.6 kg rat needs to be dosed w / insulin. dosage is 10mg insulin/kg body weight. Given that concentration is 90mg/ml, how many microliters needed to dose rat?

Which is a characteristic of colloids? are homogeneous mixtures have large dispersed particles will settle out over time are made up of at least two substances