The combining of hydrogen and oxygen gas into liquid water is an example of what kind of change?

A. Phase

B. Chemical

C. Physical

7. Which statement is true about particles in ice and in boiling water? A. Particles are the same. B. Particles are just as far apart in each state. C. Particles are moving faster in ice than in boiling water D.

Is changing direction acceleration?

When burning methane gas, which outcome best demonstrates the law of conservation of mass? A. CH4 → CO2 + H20 B. CH4 + O2→ CO2 + 2H20 C. CH4 + O2 → 2CO2 + 2H20 D. CH4 + 2O2 → CO2 + 2H20

Modern climates are a result of past movements of

Which series of atomic numbers represents the ordering of consecutive elements within the periodic table? 10, 20, 30, 40 ... 2, 4, 8, 16 ... 1, 3, 5, 7 ... 1, 2, 3, 4 ...

Was the relationship among temperature, heat, and thermal energy?

What will most likely happen when a warmer air mass exists above a polar ice sheet? The temperature of the ice sheet will be lowered. Heat will be transferred from the air mass to the ice. The air mass will exert high pressure and rise upwards.

A 2.00 L sample of gas at 35 C is to be heated at constant pressure until it reaches a volume of 5.25 L. To what Kelvin temperature must this sample be heated?

Of the following reactions, which one produces oxygen gas? Fermentation Anaerobic respiration Aerobic respiration Photosynthesis

Describe the electrodes in this iron-copper galvanic cell.