What is the purpose of forming a scientific hypothesis?

It starts a plan to test your idea

It provides the answer to your investigation

It allows you to prove your idea is correct

A solution that dissloves completely is called a?

A chemistry teacher has a 560-cm length of magnesium ribbon. For a class experiment, each student requires an 8.5-cm length of the ribbon. How many students may receive the required length?

balance the following reaction. a coefficient of "1" is understood. choose option "blank" for the correct answer if the coefficient is "1". ___ Kcl + ___ Pb (NO3) 2 - ->___ Pbl2 + ___ KNO3

The formula unit CsO, ALS, RbI, or BeCl is neutral

Convert 0.185mol sucrose (C12H22O11) into grams.

A substance contains 36.1 percent calcium and 63.9 percent chlorine by weight. What is the empirical formula of the given compound? A. CaCl B. Ca0.9Cl1.8 C. CaCl2 D. Ca2Cl4

A sample of bismuth weighing 0.687 g was converted to bismuth chloride by reacting it first with HNO3, and then with HCI, followed by careful evaporation to dryness. The mass of the bismuth chloride obtained was 1.032 g.

When 1 g of sodium chloride (NaCl) is placed in 100 g of water, a solution results. Once the solution is prepared, water is now considered what part of the solution?

1. How is pressure affected as depth increases? 2. As the sun heats the surface of the oceans, two layers of water result. What separates the layers? 3. How is temperature affected when? (a) the depth increases (b) the latitude increases 4.

Are nails in a jar with water a chemical change