What systems are working during the process of respiration?

•respiratory and lymphatic

systems

•respiratory and cardiovascular systems

•lymphatic and cardiovascular systems

•respiratory, lymphatic, and cardiovascular systems

A student balanced the chemical equation Mg + O2 →MgO by writing Mg + O2 → MgO2. Was the equation balanced correctly? Explain your answer. If the equation was not balanced correctly, write the correctly balanced equation.

Now consider the reaction when 45.0 g NaOH have been added. What amount of NaOH is this, and what amount of FeCl3 can be consumed by it?

True False 1. The phenolphthalein indicator is not affected by the pH of the solution.

Some molecules are so small that they move between other molecules in

The density of mercury is 13.6 g/cm3. Therefore, the specific gravity of mercury is 13.6. true or false

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda