the formula that specifies the actual number of atoms of each elment in one molecule or formula unit of a substance is the

True or false: for genetic engineering the specific traits of a given organism are located on the DNA sequence of the chromosomes are genes

What would it be like if Earth did not rotate?

Identify the most and the least acidic compound in each of the following sets. Leave the remaining answer in each set blank.

The following reactions all occur in a blast furnace. Which of these are redox reactions? (a) 3Fe2 O3 (s) + CO (g) ⟶ 2Fe3 O4 (s) + CO2 (g) b) Fe3 O4 (s) + CO (g) ⟶ 3FeO (s) + CO2 (g) c) FeO (s) + CO (g) ⟶ Fe (l) + CO2 (g) d) C (s) + O2 (g) ⟶ CO2 (g)

In the formula XBr3, the symbol x could represent the element, A. Al B. Mg C. H or D. S

Where might you find products made from polystyrene

What is accuracy? The same as precision It refers to how closely individual measurements agree with each other. It referes to how closely a measured value agrees with the correct value. It increases with the number of measurements.

If we know that 10.0 cm3 of ice has a mass of 9.19 g what is the density of ice

If the pressure of 125 l of gas is changed from 2.52 atm to 1.50 atm the new volume will be

A hot air balloon is filled with 15 moles helium gas and 5 moles nitrogen gas. What is the volume of the balloon at 1.01 atm and 300 K?