Find the average atomic mass for li if 7.5% of li atoms are 6li with a mass of 6.0151223 amu and 92.5% are 7li with a mass of 7.0160041 amu.

According to Newton's First Law of Motion, what does it take to move an object at rest? A. a force greater than the force keeping the object at rest B. a force equal to the force keeping the object at rest, but in the opposite direction C.

True or False: If one extended structure is made of individual atoms, and another extended structure is made from molecules, during dissolution, both extended structures will fall apart.

Imagine a white lizard and a brown lizard sitting on a brown rock. A hawk is circling overhead hunting for its next meal. Which lizard do you think the hawk would most likely try to catch? Explain your choice.

The density of a liquid is 0.821g / (mL). What is the volume of 71.3 g of this líquid?

Calculate the mass number for an atom that has 45 neutrons and 35 electrons.

Youll get brainliest if you have it right! How much heat does 225 g of water gain when its temperature rises from 25%C to 32°C? A. 6.59kj B. 21.65 kj C. 0.376kj D. 30.12kj

Explain hydrocarbons as fue

How many grams of K2CO3 are needed to prepare a 400.0 mL of a 4.25M solution? 1.7 g 235 g 81.3 g 138 g

A student titrates an unknown amount of potassium hydrogen phthalate (khc8h4o4, abbreviated khp) with 20.46 ml of 0.1000 m naoh solution. khp has one acidic hydrogen. what mass (in grams) of khp was titrated by the sodium hydroxide solution?

Name these Ionic Compounds a. LiCl b. NaCl c. KBr