Which of thses is a mixture A:oxygen B:carbon C:air D:carbon dixoxide

15.630 g milk chocolate bar ks found to contain 9.815g of sugar. how many milligrams of sugar does the bar contain?

What is any condition in an experiment that can be changed

The consumption schedule is such that Multiple Choice a. the MPC is constant and the APC declines as income rises. b. the APC is constant and the MPC declines as income rises. c. the MPC and the APC must be equal at all levels of income. d.

What is the classification of a solution with a ph of 8.3?

What is the best name for this molecule? explain your naming process. a hydrocarbon compound with a total of 9 carbons that includes one double bond and the rest single bonds. there are 6 carbons a?

What is the symbol for heat

When a single 1-gram piece of zinc is added to 3 M hydrochloric acid at 25°C, the reaction is slow. Which procedure would most likely increase the rate of the reaction if the reaction were repeated? A. using 1 gram of powdered zinc B.

Which accurately describes development? A. changing while growing B. growing larger over time C. decreasing the number of cells D. increasing the sizes of cells

A design team has come out with four different plans for building a bridge across a small stream. What is the quickest and most economical way of picking the right plan?

Is a gas that is produced by the ultraviolet radiation in the air in the vicinity of welding operations?