30 Which radioisotopes have the same decay mode and have half-lives greater than 1 hour?

(1) Au-198 and N-16 (3) 1-131 and P-32

(2) Ca-37 and Fe-53 (4) Tc-99 and U-233

How many grams of CaH2CaH2 are needed to generate 147 LL of H2H2 gas if the pressure of H2H2 is 823 torrtorr at 21 ∘C∘C? Express your answer using three significant figures.

Why are the electrons in a bond between carbon and oxygen, C-O, closer to the oxygen atom than the carbon atom?

What metric unit is used to measure distance?

How many atoms are present in 0.375 mol of palladium (pd) atoms?

3. Wearing appropriate PPE cannot significantly reduce the risk of True or False antly reduce the risk of contracting HBV.

A can of soda is 335ml what is 2 cans of soda in ml

Compound X has the molecular formula C3H6, and Compound Y has the molecular formula C6H12. How are the two compounds related? A. They are made of the same elements, but are different compounds B.

Write a generic Lewis structure for the halogens. Draw the Lewis dot structure for X

Choose the correct statement about an atomic nucleus, compared to an atom as a whole. Choose the correct statement about an atomic nucleus, compared to an atom as a whole. The nucleus is very tiny but has most of the mass.

Four waves are produced when a harp is strummed at four different times. Which wave will produce the highest pitch?