What is the role of the aluminum foil removing the tarnish and exposing pure silver

Why does air exert pressure? because air has mass because the atmosphere is thick due to wind moving air due to increased temperature

During an investigation, similar effervescent tablets were dropped into a beaker containing cold water and a beaker containing tap water. The table below shows an incomplete record of the investigation.

How many grams of iron (II) chloride are needed to produce 44.3 g iron (II) phosphate in the presence of excess sodium phosphate?

A rocky island appears as oceanic waters recede. Which of the following forms of vegetation would probably appear first on the bare rocks?

Which part of the body does colchicine affect the most

The science of the creation of maps and charts is called

What resources that we use everyday

The density of aluminum is 2.7 g/ml. if the aluminum has a volume of 10 ml, what is the mass of the aluminum?

A. List three things that your body strives to keep constant. (example metabolism) B. Describe one way in which each of the items you listed in Part A could be at least temporarily disrupted from equilibrium.

Part I Complete and balance the following equation: NO-2 (aq) + Al (s) →NH+4 (aq) + AlO-2 (aq) (basic solution)