What is the most important safety rule in science?

a. never work with chemicals.

b. always use unbreakable glassware.

c. always follow your teacher's instructions and textbook directions exactly.

d. none of the above

Which of these statements is supported by the results of Thomson's experiment? Check all of the boxes that apply. Atoms are indivisible. Cathode rays are made up of negatively charged particles. Atoms contain negatively charged particles.

What is a mixture of potassium nitrate powdered charcoal and sulfur called?

Bill dropped in to see Sarah. How long is it appropriate for him to stay? 15 minutes 30 minutes one hour

SO2Cl2 (g) ⇌SO2 (g) + Cl2 (g) Kc=2.99*10-7 at 227 ∘C You may want to reference (Page) Section 15.8 while completing this problem. Part A If a reaction mixture initially contains 0.186 MSO2Cl2, what is the equilibrium concentration of Cl2 at 227 ∘C?

A 5.00-g sample of aluminum pellets (specific heat capacity = 0.89 j/°c · g) and a 10.00-g sample of iron pellets (specific heat capacity = 0.45 j/°c · g) are heated to 100.0°c. the mixture of hot iron and aluminum is then dropped into 93.

Given that the equilibrium constant for a reaction is 0.00010, what does this tell us about the position of equilibrium for that reaction?

1. Ionic compounds generally form solids because:

A friend says that temperature increases altitude increases becauses you're moving towards the sun. Is this true? Explain.

Zinc put in concertrated sodium hydroxide

how do geologists use seismic waves to locate an earthquakes epicenter