Galaxies are composed of many different objects. What kind ok objects make up most of the visible matter in a galaxy?

Sodium reacts explosively with water. Which other element would you expect to react similarly with water? helium (He) cesium (Cs) xenon (Xe) carbon (C

How are the noble gases used in neon lights?

Water is always blank around the earth

You have an unknown solution in a beaker and you want to test it to see what it is. You put red pH paper in it and it remains red. What do you know about the solution?

What is the amount of protons neutron and electrons in the element Calcium?

How many milliseconds (ms) are there in 3.5 seconds (s) ?

Which pair of organs, located in the lower back, collects liquid and waste from the blood? A. liver B. lungs C. kidneys D. skin

A caterpillar has an exoskeleton and feeds on many leaves before it makes a cocoon and becomes a butterfly. Which type of organism is a caterpillar? 1. an autotroph and an invertebrate 2. a heterotroph and an invertebrate 3.

Which of the following gases is produced by a storage battery when it's charging?

Ann and Carol each lift the timber with a force of 80 kg/m/s2. If they lift the timber a distance of 1.25 meters, how much work is each woman doing? Question 1 options: 64.00 J 78.75 J 81.25 J 100.00 J