Why is there a danger of explosion in places like coal mines where there are large quantities of powdered, combustible materials?

What is the temperature of the oceanic crust?

Magnesium oxide can be produced by heating magnesium metal in the presence of oxygen. When 10.1 g of Mg reacts with 10.5 g of O2, 11.9 g of MgO are collected. a) Write the balanced equation for this reaction, including all states of matter.

5. According to the model, why temperature dependent? equilibrium constants for a chemical reaction are

Why could a diet low in carbohydrates be dangerous? A_The body could break down proteins from muscles for energy. B_The increased level of starches would provide excess energy. C_The body could take in too much dietary fiber, which harms cells.

Convert 2.57 x 10 10 atoms of Cr to moles

How much water, in liters, must be added to 0.5 L of 6 M HCl to make it 2 M? a. 0.33 b. 0.5 c. 1 d. 1.5 e. 2

You start with 100 grams of zinc how many moles of hydrogen will be produced

What will an atom do if it has 1 to 3 valence electrons

What is milk best described as? solution, suspension, compound, or colloid?

In any chemical reaction, the quantities that are conserved are ... A. mass and moles. B. the number of molecules and the volumes. C. the number of moles and the volumes. D. mass and number of atoms.