Calculate δhrxn for the following reaction: c(s)+h2o(g)→co(g)+h2(g) use the following reactions and given δh values: c(s)+o2(g)→co2(g), δh= -393. 5 kj 2co(g)+o2(g)→2co2(g), δh= -566. 0 kj 2h2(g)+o2(g)→2h2o(g), δh= -483. 6 kj.

Alaser tag arena sells two types of memberships. one package costs $325 for one year of membership with an unlimited number of visits. the second package has $125 enrollment fee, includes five free visits, and costs and additional $8 per visit after the first five. how many visits would a person need to use for each type of membership to cost the same amount over a one-year period?

Draw a plain view of hexagonal bolt and square nut for a 24mm diameter according to the approximate dimension

When you observe the shine of a mineral sample, which property are you measuring? a.cleavage b.luster c.streak d.color