What type of star has an absolute brightness of 1 and a surface temperature around 7,500 ∞C

Supergiant

Giant

Main sequence

Dwarf

What is the S. I unit of pressure?

Which of these compounds is most likely to be ionic? select one: a. ncl3 b. bacl2 c. co d. so2 e. sf4?

What is the maximum volume of 0.788M CaCl2 solution that can be prepared using 85.3g CaCl2

Is the water more or less dense as you go deeper?

What mass of Ba3 (PO4) 2 is contained in 1575 mL of a 0.35 M solution of Ba3 (PO4) 2?

Complete the following statement by checking all that apply Creativity allows scientists to develop multiple approaches to solving problems. adapt to changes in scientific knowledge. look at old problems in new ways.

The atomic weight of hydrogen is 1.00794. a. True b. False

Describe What kind of ions do metals form? What kind of ions do nonmetals form?

A car is driven through streets treated with salt and then parked in a warm garage. a) How will the rate of rusting compare with a car that has not been driven in the streets treated with salt but left parked outside?

Amalgam is an alloy that contains mercury and other metals. Which of these atoms would most likely form metallic bonds with mercury? Check all that apply. bromine copper hydrogen iodine silver tin