Please help I’m really stuck:/ 1. Use the equation weight = mg to find the weight of a 45 kg child.
2. Find the speed of a caterpillar that crawls a distance of 6.0 cm every
2.0 seconds. The equation for speed is v=d/t.
3. The circumference of a circle equals 2 mr, where r is the radius. Find
the circumference of a compact disc that has a radius of 6.0 cm.
2
HOLT SCIENCE SPECTRUM

Asap! how do you lengthen a pattern piece? (family and consumer science, sewing)

Part b: study of equilibrium on solubility: mg(oh)2(s) ⇌ mg2+(aq) + 2 oh–(aq) cloudy clear (pink) 7. a. b. 8. a. b. 9. 10. 11. 12. when adding concentrated hydrochloric acid, how did the appearance of the equilibrium mixture change? the change in appearance indicated a shift in the point of equilibrium. in which direction did the equilibrium shift? (l) left (r) right explain your answer to question 7a. you should indicate which ion was added to or removed from the equilibrium mixture. when adding edta, how did the appearance of the equilibrium mixture change? the change in appearance indicated a shift in the point of equilibrium. in which direction did the equilibrium shift? (l) left (r) right explain your answer to question 8a. you should indicate which ion was added to or removed from the equilibrium mixture. upon heating in which direction is the equilibrium shifting? upon cooling in which direction is the equilibrium shifting? is the forward reaction a. endothermic explain your answers to questions 9, 10, and 11. (l) left (r) right (l) left (r) right b. exothermic

What’s the theoretical yield of solid lead