A seismograph uses a ... to record drums vibration

True or false 1. The valence number of Sulphur in H2S is 1. 2. The symbol of potassium is derived from English name. 3. The apparatus used to carry out distillation process is filter pape 4.

Magnesium ribbon reacts vigorously with hydrochloric acid. The test tube gets hot and bubbles are produced. When a metal reacts with an acid in a single replacement reaction, we can expect the production of A.) oxygen gas. B) water vapor.

Solid copper (II) hydroxide is heated to produce

A true breeding pea plant with smooth seeds is crossed with a true breeding pea plant with wrinkles if smooth seeds is a dominat factor what is the offspring going to look like

Which of the following molecules contain double covalent bonds? a) ammonia b) carbon dioxide c) hydrogen chloride d) methane

A piece of iron can change in different ways. How is iron bending different from iron rusting?

Which organism would least likely be selectively bred A) Dandelions B) Nantes Carrots C) Belgian Blue Cattle D) Hypoallergenic Cats

You are given a clear solution of KNO3. Using 3-4 sentences explain how you would determine if the solution is unsaturated, saturated, or supersaturated

Which element combination (s) would result in electrons being shared? [] sodium (Na) and oxygen (O) [] carbon (C) and fluorine (F) [] oxygen (O) and hydrogen (H) [] aluminum (Al) and chlorine (Cl)

If you start with 4 moles of iron and 3 moles of oxygen to produce iron oxide, what is the limiting reagent? (You will need to balance the equation first.) Fe + O2 - > Fe2O3