How do the properties of elements change as you move across a period

What two factors affect the size of an atom

6. What is the total number of calories lost when 10 grams of water at 80°C is cooled to 60°C? A) 10 B) 20 C) 100 D) 200

Which of the answer choices correctly describes a phase change that occurs when a solid transitions directly into a gas state without becoming a liquid? deposition condensation boiling sublimation

Would a material with a higher specific heat cool faster than a material with a lower specific heat?

Which type of change must occur to form a compound? (1) chemical (3) nuclear (2) physical (4) phase?

Which mineral (s) might you be examining if you place some hydrochloric (hcl) acid on a sample and it fizzes?

How many grams of aluminum are required to give a total dislocation length of 3,000 miles (enough to stretch from New York City to Los Angeles assuming you could align all the dislocations into a single line like a string).

Caffeine contains hydrogen, carbon, nitrogen, and oxygen atoms in a fixed ratio.

What type of grass is poisioness

What will happen if there is an insufficient supply of oxygen during the combustion of a hydrocarbon?