Now write the formulas of TWO compounds we can investigate--one that has an element substituted for H, and one that has an element substitute for O. Write the formulas separate by a comma, like this: X2O, H2X *

the answer

explanation:

the capillary tube was too close to the bottom of the beaker.

the ruler may have moved.

water got into the capillary tube.

the temperature was not allowed to equilibrate in the 2-4 minutes.

organisms are more likely to be more preserved in mud than sand because mud is moist and wet, while sand is very dry.

the maximum mass of nh3 is nh3 in grams

you did not give any options thus this is the best answer i can give to you with this little information you have given

> they are both natural and not man made

> they can be tracked and predicted by the right tools

-love shrooms