Which of the following statements best describes the importance of investigations in science

Water on the kitchen floor at home is considered a safety hazard.

Which of the following equations is balanced correctly? A. 3 H2O → H2 + 3 O2 B. Cl2 + 2 KBr → KCl + Br2 C. 2 C2H2 + 5 O2 → 4 CO2 + 2 H2O D. 2 C3H3 + O2 → 2 CO2 + H2O

Which statement best describes a physical change? O Changes can occur to certain chemical properties of the substance, but the overall shape of the substance will remain the same.

A researcher measures the thickness of a layer of benzene (n = 1.50) floating on water by shining monochromatic light onto the film and varying the wavelength of the light.

What can be said about two numbers that have either a positive or negative correlation? No relationship exists. A relationship is not an important part of correlated numbers. A relationship exists and the numbers cause one another.

How does mass affect the speed of an object

Which of the following tools can be used to determine humidity? Select all that apply. Barometer Hygrometers Anemometer Hair Thermometer [can use more than one answer]

For a cars speedometer what is the calculated speed over an entire trip

How does gravity influence our annual calendar?

A 0.500 kg block is sitting on a horizontal, frictionless surface. The block is connected to a horizontal spring with a force constant of 124 N/m. The other end of the horizontal spring rests against a wall. When a 100.