are chemical and physical properties of the new substance the same or diffrent after a chemical reaction

Express the product of 5.4mm and 6.02 mm using the correct number of significant digits. A. 32mm^2 B. 33mm^2 C. 32.5mm^2 D. 32.51 mm^2

Which substance would be found in higher concentration if the membrane were damaged? View Available Hint (s) Which substance would be found in higher concentration if the membrane were damaged? protein chloride creatinine glucose

The reactivity of an alkali metal depends on the metals ability to

What is the change in enthalpy of the first reaction below, given the enthalpies of the other two reactions? 2NO (g) + O2 (g) + 2NO2 (g) N, (8) + O2 (g) → NO (g) N, (8) + O2 (g) + NO2 (g) AH = 90 kJ/mol AH° = 34 kJ/mol A. 56 kJ B. - 112 kJ C.

An old saying is that " oil and water don't mix. Explain the molecular basis for this saying

Transport means to move something from one place to another. True False

What are two reasons that ocean water sinks in the Arctic Ocean? A. The surface water is warmer and less salty than normal. B. The surface water is warmer and more salty than normal. C. The surface water is colder and less salty than normal. D.

Which statement best describes the conductivity of weak electrolytes, such as weak acids and bases? A) Weak electrolytes do not dissolve in water and can not conduct electricity.

Two speakers are placed side by side and are described as having constructive interference. How do you know when constructive interference of sound waves has occurred?

Write about "human impact"