How can you read a determine the masses

Fe2O3+2Al=Al2O3+2Fe A welder has 1.873 _ 10^2 g Fe2O3 and 94.51 g Al in his welding kit. Which reactant will he run out of first? (options: Fe2O3 or Al ... it's Fe2O3).

Which statement describes a newton? A. It exists only for objects on Earth B. It measures the mass of an object C. It reflects the amount of force an object exerts D. It states that every objects attracts another object

the distance from earth to the moon is approximately 3.84x10^5 km. how long would it take a radio wave with the frequency 7.25x10^5 Hz to travel from Earth to the moon

Type of Compound? Electrolyte or Non-electrolyte? NaCl CO2 Al2O3 H2O2 CaF2

What is stored in carbon bonds? Wate water energy glucose ATP

Which formula id correctly paired with its name? A. MgSO↓ = magnesium chlorine B. FeO = iron (|||) oxide C. K↓2O = Phosphorus dioxide D. CuCI↓2 = copper (||) chloride

Suppose you find a rock that contains some potassium-40 (half-life of 1.3 billion years). you measure the amount and determine that there are 5 grams of potassium-40 in the rock.

What are some positive and negative effects of the production of maple syrup on society and the environment?

Describe and give an example of parasitism.

Why is a dilute solution of oleic acid used instead of pure oleic acid?