What are some indicators that a chemical reaction is occurring? Check all that apply.

the formation of bubbles

a change in size

a change in color

the formation of a liquid

the formation of a precipitate

Marcia flew her ultralight plane to a nearby town against a head wind of 15 km/h in 2h 20 min. the return trip under the same wind conditions took 1h 24min. find the plane's air speed and the distance to the nearby town

Which distance can be most accurately measured with a ruler? a. the size of an object under a microscope b. the width of a book c. the length of a river d. the distance between two cities?

He law of motion that states that an object will maintain its straight line motion until acted upon by an unbalanced force is A. Newtons third law B. F=m*a C. Newtons first law D. Newtons second law

An RLC circuit with a resistor of R/:=/:1 R = 1 k, capacitor ofC/:=/:3 C = 3 F, and inductor ofL/:=/:2 L = 2 H reaches a maximum current through the inductor of 7 mA.

Which metal would cause the greatest increase in the temperature of the water in the calorimeter: the one with the highest specific heat, or the one with the lower specific heat?

What is the displacement and distance if I walk 8 blocks north, 9 blocks west and 10 blocks south

What investigations provide large amounts of information about a wide range of variables.

Why would Sodium (Na) and Chlorine (CI) want to form a lonic Bond? -to achieve a full inner valence shell -to achieve a equal amount of protons & electrons in their nucleus -to achieve an stable amount of protons & neutrons in their nucleus -to

A digital thermometer reads 15 degrees Celsius, what is the uncertainty?

Determine the magnitude of the effective value of g⃗ at a latitude of 60 ∘ on the earth. assume the earth is a rotating sphere.