Which is an example of a decomposition reaction? A. CH4 + 202 - 2H2O + CO2
B. 2H202 - 2H20 + O2
C. 2Li + CaCl2 - 2LICI + Ca
D. Si + 02 - SiO2

Help please

A3030 cmcm wrench is used to loosen a bolt with a force applied 0.30.3 mm from the bolt. it takes 6060 nn to loosen the bolt when the force is applied perpendicular to the wrench. how much force would it take if the force was applied at a 3030 degree angle from perpendicular? a 3030 cmcm wrench is used to loosen a bolt with a force applied 0.30.3 mm from the bolt. it takes 6060 nn to loosen the bolt when the force is applied perpendicular to the wrench. how much force would it take if the force was applied at a 3030 degree angle from perpendicular?

If the area of a square has increased by a factor of 16, by how much has each side increased?

Which of the following is a measure of the amount of light a star directly emits?               a.  luminosity    b.  intensity    c.  wavelength    d.  brightness