Which is visible to the naked eye?

A) atoms

B) substances that atoms make up

C) attractive forces

D) chemical bonds

Which of the following is a large-scale, slow-moving natural change? A) glaciation B) hurricane C) drought D) famine

The ideal gas constant, R has several different values that could be used. Which quantity causes these differences? a. pressure b. temperature c. volume d. moles

Mg (OH) 2 + HCl - - > MgCl2 + H2O

While working near a radioactive mine, workers usually wear heavy plastic suits. These suits protect them from all but

his is the chemical formula for epinephrine (the main ingredient in adrenaline) : C9H13O3N A biochemist has determined by measurements that there are 33. moles of carbon in a sample of epinephrine. How many moles of nitrogen are in the sample?

0.402 L = 402 mL 0.0202 L = 20.2 mL 3.6 L = 360 mL 11.1 L = 11,100 mL

Which is one possible way the digestive system works together with other body system

Can anyone tell me how to balance chemical equations

Nomadic people received income from where

How many milliliters of 0.755 m h2so4 solution is needed to react with 55.0 ml of 2.50 m koh solution? given: 2 koh (aq) + h2so4 (aq) → 2 h2o (l) + k2so4 (aq) ?