Stuck stupid science homework. anyone know answers?

Calculate the mass of sucrose necessary to make a 5% by mass sucrose solution if the solution contains 50.0 ml of distilled water.

Which type of graph is best used to show the percentage of reactant molecules that collide during a reaction? Scatter Plot Circle Graph Stem and leaf plot

Which of the following represents an element CO N2 CO2 H2O

Three things about the body systems?

Name the alkaline earth metal with the highest ionization energy

As the average kinetic energy of the particles in a gas increases, which of the following occurs? The temperature of the gas increases. The temperature of the gas decreases. The number of particles increases. The number of particles decreases.

What is the type of strong chemical bond between carbon, hydrogen, and oxygen atoms in a single organic molecule?

0.100 mol of CaCO3 and 0.100 mol CaO are placed in an 10.0 L evacuated container and heated to 385 K. When equilibrium is reached the pressure of CO2 is 0.220 atm. 0.

What is true about the charges of transition metal ions?

A gas obeys the ideal-gas equation of state P V = N k T, where N = n NA is the number of molecules in the volume V at pressure P and temperature T and n is the number of gm-moles of the gas.