A machine has an efficiency of 70%. How much woke does the machine do when 20,000 J of work is done on it?

What element behaves most like magnesium?

Liquids diffuse more slowly than gases because

If different groups of scientist have access to the same data, how can they draw different conclusions? Scientists manipulate data to fit their hypotheses, which results in different conclusions.

What is chemistry an how do I learn

What type of solar radiation does not reach the surface of the earth? visual radiation infrared radiation ultraviolet radiation gamma radiation

if a sample if pure sodium bas a mass of 8.2 grams and sodium has an average atomic mass of 22.99 g/mol, how many sodium atoms are there in the sample?

The plunger on a bicycle pump with a 400 mL volume cylinder is depressed such that the pressure in the pump increases from 1.00 atm to 6.00 atm.

Identify the property of magma that causes it to be forced upward towards earth's surface.

Classify each of these compounds as a Brønsted-Lowry acid, a Brønsted-Lowry base, or neither. Drag each item to the appropriate bin. are these a Brønsted-Lowry acid or a Brønsted-Lowry base H2SO4, HNO2, (CH3) 3N, C3H7NH2, HF, NH3, NaBr, CCl4

If you dissolve sugar into water in a small jar, will the result be a mixture, a solution or both? Explain.