Which of the following causes a chemical change?

A. moving B. shattering C. burning D. melting

Which is the balanced chemical equation showing hydrogen peroxide (h2o2) decomposing into hydrogen (h2) and oxygen (o2) ? 1. h2 + o2 → h2o2 2. 2 h2o2 → 2 h2 + o2 3. h2o2 → h2 + o2 4. 2 h2 + o2 → 2 h2o2?

Is the night sky divided into contellations? Is a light-Year is a measurement of time?

What is g=9.8m/s2 if m=10. kg

What is another word for the salt in seawater? A. solvent B. mixture C. solute D. solution

True or False It is impossible for a virus to cause cancer.

Which horizon would have the highest amount of organic material? A horizon B horizon C horizon O horizon

is the time of a day to ya go babe and I get to ya go babe bye bye hello hello ma'am and sir I wanna know that I'm going on a walk now I'll give it to my dad was your birthday and you guys have fun now.

What is the oxidation number of iodine in KIO4? (1) + 1 (3) + 7 (2) - 1 (4) - 7

Which uses of iron are due to its chemical properties? Select two options. producing colored sparks in fireworks changing from liquid to gas at 2,862°C rusting in the presence of water and oxygen changing from solid to liquid if heated to 1,538°C

What type of sedimentary rock is formed from mechanical weathering debris