science
think about how much air is surrounding each object pushing on it (exerting pressure). Does it matter what the object is? Air pressure is basically the weight of the air above the object.
Biology
There are four choices here. Three of them have to do with emotions and synthesis (creating things or ideas). One deals with sequence and analysis (in this case, language). You can only choose one....
Biology
I don't know this one, but you could just look up each of the options in wikipedia, or google each option with the phrase "in adolescence" included in your search.
physics
She is travelling the same distance at each speed, so it doesn't matter what that distance is. You simply find the average of the two speeds.
science
To get you started: It looks like you want the equation for potassium and sulfur reacting to form potassium sulfide, that is potassium + sulfur ---> potassium sulfide Write this down using the chemical symbols for each. You will need to find the number of valence electrons ...
Chemistry
How would you make 500 mL (0.500L) of a 0.200 M HCl solution from stock concentrate of 12 M HCl?
Chemistry
How would you make 500 mL (0.500L) of a 0.200 M HCl solution from stock concentrate of 12 M HCl?
Chemistry
How would you make 500 mL (0.500L) of a 0.200 M HCl solution from stock concentrate of 12 M HCl?
algebra
together, jareds age and his daughters age total 100. but jareds grandfather is 70 years older than him. how old is jareds grandfather?
math
how long do guys take answer questions
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