In the formula XF2, the element represented by X can be classified as a (1) Group 1 metal (2) Group 2 metal (3) Group 1 nonmetal (4) Group 2 nonmetal

Which test result indicated a chemical change has taken place?

Steam at 200 °C is cooled to 105°c. What happens to the volume? Mass? Average kinetic energyy of the molecules and the particle movement?

14C has a half-life of 5600 years. An analysis of charcoal from a wood fire shows that its 14C content is 25% of that in living wood. How many years have passed since the wood for the fire was cut?

Gaseous methane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water. What is the theoretical yield of carbon dioxide formed from the reaction of of methane and of oxygen gas?

In the following reaction, which component acts as an oxidizing agent? 10 I - (aq) + 2 MnO4 - (aq) + 16 H + (aq) → 5 I2 (s) + 2 Mn2 + (aq) + 8 H2O (l)

One mole of propane (c3h8) gas reacts with five moles of oxygen (o2) gas to produce three moles of carbon dioxide gas (co2) and four moles of water gas (h2o).

How many nitrogen molecules are in 1.2 moles of N2?

Which best describes how sediment forms?

Detailed explanation of why the sky is blue

Becky leaves home and write a distance of 30 KM it took her 2.5 hours what is her speed