Avalue of ph 7.0 indicates a) a zero hydrogen-ion concentration b) the lowest hydrogen-ion concentration c) the highest hydrogen-ion concentration d) equal hydrogen and hydroxide-ion concentration

Two friends are having a conversation. anna says a satellite in orbit is in freefall because the satellite keeps falling toward earth. tom says a satellite in orbit is not in freefall because the acceleration due to gravity is not 9.80 m/2 . who do you agree with and why?

Classify each possible hypothesis about a medicinal aloe vera plant as falsifiable or non-falsifiable. aloe vera gel is the best natural skin moisturizer. aloe vera gel can heal wounds by boosting cell renewal. aloe vera juice tastes better than carrot juice. drinking aloe juice can reduce the risk of lung cancer.

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane