The number of protons in the nucleus is always equal to the number of neutrons. True or False?

What is the mass of 8 moles of carbon-12?

What is the average temperature on Mars?

1. How many hydrogen atoms are in 5 molecules of isopropyl alcohol, C3H7O a. 5 x (6.02 x 10^23) b. 5 c. 35 d. 35 x (6.02 x 10^23) 2. How many molecules are in 2.10 mol CO2? a. 2.53 x 10^24 molecules b. 3.79 x 10^24 molecules c. 3.

Which most likely would be a new social issue resulting from the installation of a dam? A. Antibiotic resistance B. Habitat destruction C. Greater exposure to radiation D. Increase in biodiversity

A 3.5-g sample of colorado oil shale is burned in a bomb calorimeter, which causes the temperature of the calorimeter to increase by 5.0°c. the calorimeter contains 1.00 kg of water (heat capacity of h2o = 4.

A 750 mL sample of nitrogen is heated from 30°C to 92 C at constant pressure. What is the final volume?

Write a brief explanation about why a plant extract is a mixture

What is an element that has more valence electrons than fluorine and less energy levels than sodium?

Why can't we breathe in pure oxygen for long

In warm water conditions, female offspring hatch from eggs laid by painted turtles. Male offspring are produced under cold conditions.