A gas has a pressure of 2.0 atm. If the temperature decreases from 250K to 125K and the volume remains constant, what will be the resulting pressure?

Which of the following is a quantitative property of minerals? A. Cleavage B. Hardness C. Luster D. Streak

Yousef measured the height of each seedling on day 1 and day 7. These are his results. Group Seedling Increase in height/mm A no water 6.5 0.5 0.5 0.5 5.5 B 2 cm water Height of seedling/mm Day 1 Day 7 - 6.0 5.5 6.0 6.0 5.5 7.5 6.0 8.0 6.0 8.5 6.0 9.

The kinetic energy of all the particles in a given sample of matter is the same? true or false

Using the molecular orbital model to describe the bond - ing in F2?, F2, and F2?, predict the bond orders and the relative bond lengths for these three species. How many unpaired electrons are present in each species?

Which substance will have the largest temperature change if the same amount of heat is added to each of them? Gold, Au (s) : specific heat = 0.0308 calories per gram degree Celsius. Water, H2O (l) : specific heat = 1.

Regalo puntos : v vengan a mi prros

Write a net ionic equation for the overall reaction that occurs when aqueous solutions of phosphoric acid (h3po4) and potassium hydroxide are combined. assume excess base. use the pull-down boxes to specify states such as (aq) or (s).

What are the coefficients that will balance the skeleton equation below? n + h ⟶ nh?

Restate Newtons first law in terms of acceleration

Why is burning is not a recommended method of disposing plastics