Something used to represent a complex idea or process in science is a

1 program

2 microscope

3 hypothesis

4 model

What relationship can you see between the mass and the volume of an object

When calculating the enthalpy of a reaction, if the reactant has a coefficient of 2, what must be done to the ΔHf value of the reactant?

The mass of a lithium-7 atom is 7.016003 amu. What is the nuclear binding energy of a lithium-7 nucleus in units of kJ/mol and eV/nucleus? Enter your answers in scientific notation.

2. force → the rate at which an object changes position; distance divided by time true or false 3. inertia → an object's resistance to a change in motion true or false 4.

What is the Ozone Layer?

What is the volume of an object with a height of 2.3cm, a width of 2.4cm, a mass of 17.5g, and a length of 20cm?

Is layers of sediment forming at the bottom of the ocean erosion?

How to find the better buy of two of the same item, but they have different units of measurements and different costs.?

The agricultural practice of spraying insecticides leaves behind which pollutant in the soil? A. Chemical poison B. Excess nitrogen C. Excess salt D. Acidic compounds

What is the name of the compound composed of iron and carbonate? [hint: iron has a + 3 charge in this compound]?