Which one of the following is a weak acid? (a) H2SO4 (b) HF (c) HCl (d) HBr (e) HI

Justine's hair dryer has a resistance of 20 Ohms when first turned on. How much current does the hair dryer draw from the 110.-V line in Justine's house? (Answer in amps)

When two substances that cannot dissolve each other are mixed, a mixture is formed. a heterogeneous mixture that has very small dispersed particles and stays mixed for a long time is a.

How do you know which element is the most reactive in the periodic table?

What is not true of a strong acid? A. It is a strong electrolyte B. It always has a concentration above 1.0 M C. It ionizes well in water D. It conducts electricity in solution

The scientific method can easily be misinterpreted as a linear "cookbook" recipe for performing scientific invetigations Question 1 options: True False

What is the SI base unit of temperature? Celsius kelvin coulomb Fahrenheit

What property of an object is expressed by the measurement of an item's mass per unit volume? A. density B. viscosity C. surface tension D. buoyancy

Which type of wave cannot move without a medium in which to travel? Heat waves Light waves Sound waves Transverse waves

8Ft 14 ft What is the Surface Area?

What type of atom is hydrogen with an atomic mass of 1 and 2 electrons