Test 1

Daltons Atomic Theory states: a) energy is neither created nor destroyed b)the properties of matter are determined by the properties of atoms c)an atom is predominantly empty space d)that all elements have several isotopes e)that matter is composed of tiny indestructible particles

e) matter is composed of tiny indestructible particles

All of the following are SI base units of measurement except: a)gram b)second c)mole d)kelvin e)meter

a) gram

Which of the following represents a valid hypothesis? a)Sodium metal reacts violently with water b)Oxygen is a gas at room temperature c)Metals tend to lose electrons d)Neon does not react with oxygen e)Lead is soft and malleable

C) Metals tend to lose electrons

Which of the following statements is true? a)Once a theory is constructed, it is considered fact b)A hypothesis is speculation that is difficult to test c)A scientific law summarizes a series of related observations d)An observation explains why nature does something e)A scientific law is fact

C) a scientific law summarizes a series of related observations

What are the 4 SI base units of measurement?

Kelvin Second Meter Mole

What is the formula to convert F to kelvin?

T(K) = (T(°F) + 459.67) × 5/9

What is the formula to convert from Celsius to Kelvin?

T(K) = T(°C) + 273.15

What is the formula to convert from kelvin to celsius?

T(°C) = T(K) - 273.15

What is the formula to convert from celsius to farenheit?

T(°F) = T(°C) × 1.8 + 32