Probability- result of multiple trials

Lets say that there is a 30% chance for me to obtain a certain item when i kill something.

Now lets say that I kill it again. Chances remain the same however, I'm confused on how to calculate the probability that I'm going to obtain that one object out of those two trials

Basically, if i were to perform a task with a 30% chance to win the gold every time. What is the overall chance that I might win one object out of those 10 trials, or 2 objects out of those 10 trials.

I couldn't find an answer as I surfed the web

Sorry if this question is confusing, or if its stupid and simple.

Thank you!!