What is the group of elements that has a completely filled outer level of electrons is known as?

Convert each of the following measures in length 1.1cm to meters

The mole ratio of NO produced to HNO3 reacted is 2:3 2:3 1:4 4:1 3Cu+8HNO3=3Cu (NO3) 2+2NO+4H2O

Equation 3x-5=-2x + 10? O 0 x = 5 -5 = x -15 = - 5x -5x = 15

Which of the following represents the most matter? 3.5 kg 350 g 3.5 x 10³ hg 3.5 x 10⁴ cg

Which activities describe the use of technology in science? Check all that apply. looking at cells through a microscope viewing stars through a telescope observing a plant with the unaided eye creating a blank data table by hand in a notebook

Tear gas has the composition 40.25% carbon, 6.19% hydrogen, 8.94% oxygen, 44.62% bromine. what is the empirical formula of this compound?

Explain why ships traveling from east to west across the Atlantic take days longer than ships traveling the same distance from west to east.

In a titration 25.0 ml of a. 20 M NaOH solution is used to neutralize 10.0 ml of HCl. Write the equation for this neutralization reaction and calculate the molarity of the acid.

4*C: 4cm 8*C: 10cm 12*C: 14cm 16*C: 18cm 20*C:24cm 24*C: 12cm what is the independent variable, dependent variable and three constant variables?

In the chemical laboratory, why do scientists use a mortar and pestle? a. to increase surface area of a solute b. to decrease surface area of a solute c. to increase temperature of a solute d. to decrease temperature of a solute