A certain ore is 33.0% nickel by mass. How many kilograms of this ore would you need to dig up to have 25.0 g of nickel?

The quantity of electrical current in a circuit depends upon which factors? ammeter voltage ohms PSI switch

Which of the following is the correct (unbalanced) equation for the reaction that takes place when solid phosphorus combines with oxygen gas to form diphosphorus pentoxide? A. P (s) + O2 (g) - -> P2O5 (s) B. P2O5 (s) - -> P2 (s) + O2 (g) C.

How long does a springtide occur

What is the density of an object if it has a mass of 73 grams and a volume of 3.8cm3?

2. How do chemical reactions involve energy?

If enough heat is added to a substance, electrons begin to separate from the atomic nuclei. Which process does this describe? A. A solid turning into a liquid B. A plasma turning into a gas C. A gas turning into a plasma D.

What is the percent of H2O in a sample of a hydrate whose mass is 1.1290 g if the mass of water in the sample was 0.1660 g?

Why does conduction occur in solids and liquids easier compared to gases? Because the particles in gases are closer together and move slower Because the particles in gases are farther apart and move faster.

Write a balanced equation for the combustion of gaseous methane (CH4), a majority component of natural gas, in which it combines with gaseous oxygen to form gaseous carbon dioxide and gaseous water.

Pedro listed characteristics of two types of protists in a chart. Two Groups of Protists X Y Often multicellular Are usually autotrophic Include euglenoids Are heterotrophs Reproduce using spores Include different molds Which headings best complete