What are the three challenges of life? What kind of challenges can you see these organisms dealing with?

Which of the following is not a redox reaction? A. H2O (l) + NH3 (g) LaTeX: / longrightarrow NH4 + (aq) + OH - (aq) B. 2H2 (g) + O2 (g) LaTeX: / longrightarrow 2H2O (l) C. Zn (s) + H2SO4 (aq) LaTeX: / longrightarrow ZnSO4 (aq) + H2 (g) D.

Which of the following best describes the motion of a rolling soccer ball during a game? A) It will not be affected by inertia B) It will have a constant velocity until acted upon by outside forces C) It will not be affected by gravity D) It will

Hich is an example of a chemical change? mixing of poster colors formation of clouds metal corroding in salt water sugar dissolving in water separating salt from seawater

Two hydrogen nuclei repel one another due to the positive charges of the protons within them. At some separation distance this repulsion is overcome and the hydrogen nuclei can fuse to form helium.

What temperature scale has zero as its lowest temperature? A. The Celsius scale B. The average atomic mass scale C. The Kelvin scale D. The Fahrenheit scale

Is rust a pure substance or a mixture? <3

How should Hector use specialization to solve his problem? Based on the scenario, recommend which employee should work on which task.

What happens to the movement of water when a cell is placed in a hypotonic solution?

What are the terms that describe these values for the element oxygen 16 to 8

When metal A is placed in a solution of metal ions B2+, a reaction occurs between A and B2+, and metal ions A2 + appear in the solution. When metal B is placed in acid solution, gas bubbles form on its surface.