Calcule o calor especifico do estanho sabendo que foram necessarias 100 cal para elevar em 20ºC a temperatura de 100 g de estanho

Phosphorus is: 1 found free in the atmosphere 2 returned to the soil by rhizobium 3 added to the soil through weathering 4 usually very abundant in an ecosystem

A gas has a volume of 4 liters at 500K. What will its volume be (in liters) at 300K? Your answer

3. what is one defining feature of a prokaryotic cell? a. nucleus b. nucleoid c. ribosomes d. flagella

What is the r. a. m. value of copper (Cu) ? A. 34.5 amu B. 63.5 amu C. 29 amu D. 29/12 of carbon-12

When you pur milk on your cereal in the morning are you making a heterogeneous mixture or honogeneous mixture

Two children are playing tag. Child A who is doing the chasing can run 100m in 24 seconds Child B is running away from child A and can run 64m in 21 seconds.

What ion does a base increase

What is the definition of Amplitude?

An excess of NiCO3, 12 g, was added to 40cm cube of sulpheric acid, 2.0 mol/dm cube. The unreacted nickel carbonate was filtered out and the filtrate evaporated to optain the crystals.

Under what condition is decompostion the fastest? Under what condition is it the slowest?