If an object what is 30 kg of mass is moving at 10 m/s to the right how much kinetic energy does it have

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) ⇌ co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) → co2(g) k=1.363×10^69 b. 2 h2(g) + o2(g) → 2 h2o(g) k=1.389×10^80 c. 2co(g) + o2 (g) → 2 co2(g) k=1.477×10^90

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0