What is the mass of oxygen in 10.0 grams of water

By using the following reactions, calculate the heat of combustion of pentane: C5H12 (g) + 8O2 (g) → 5CO2 (g) + 6H2O (l).

2. A (n) has different properties than the elements that compose it and is made of substances combined in a specific ratio.

Based on how each food burned, which food would be the best to use for a fuel that has a steady flame and might burn for a long time? What was the composition of this food (which macromolecule was it mostly composed of) ?

3.13 g of sodium (Na) reacts with 7.17 g of chlorine (Cl2) to produce 10.3 g of sodium chloride (NaCl). How many g of chlorine (Cl2) would be required to produce 3.01 g of NaCl? A. 2.10 g of Cl2 B. 0.91 g of Cl2 C. 2.18 g of Cl2 D. 0.40 g of Cl2

In a chemical reaction, atoms are created/rearranged. The atom are joined together in the same/different arrangements after the reaction. The total number of each type of atom is greater/less/The same after the reaction.

In a redox reaction, oxidation is defined by the: 1. gain of electrons, resulting in an increased oxidation number. 2. loss of electrons, resulting in a decreased oxidation number. 3. gain of electrons, resulting in a decreased oxidation number. 4.

The benefit of fusion is that it: requires no fuel produces more energy yields very little nuclear waste is easier to control

What's the reaction between coke and salt?

Which kind of investigations never include a hypothesis? experimental systemic descriptive comparative

If electrons were used in the two-slit experiment instead of light, what change would need to be made to the slit spacing in order to see a diffraction pattern?