The element boron has two naturally occurring isotopes,11B (11amu) and 10B (10amu). Determine the percent abundance of each isotope if the weighted average atomic mass is 10.8amu.

Excerpt from marsupials carole jenkins they are basically very timid animals and 5 exscape from their enemies by jumping away on their strong and powerful hind legs. look at the underlined section labelled 5. there may be a mistake in punctuation, capitalization, or spelling. if you find a mistake choose the answer that corrects the mistake. if there is no mistake, choose ‘correct as is.’ a) correct as is. b) escape from their enemies by jumping away c) exscape from there enemies by jumping away d) exscape from their enemie’s by jumping away

Will give branliest and 25 points if answer all quesyions 1. select the correct prefix for the following base word: freeze (against freezing). a. im- b. inter- c. re- d. mis- e. anti- 2. select the correct prefix for the following base word: lock (lock between). a. im- b. inter- c. re- d. mis- e. anti- 3. select the correct prefix for the following base word: behave (behave badly). a. im- b. inter- c. re- d. mis- e. anti- 4. select the correct prefix for the following base word: mature (not mature). a. im- b. inter- c. re- d. mis- e. anti- 5.. select the correct prefix for the following base word: play (play again). a. im- b. inter- c. re- d. mis- e. anti-

Which sentence contains a participial phrase that is placed correctly? -jose paid for a hamburger scanning the cafeteria for an empty seat -peeling off her winter jacket, sierra settled into the cozy armchair. -made of soft wool, nadia pulled on a blue sweater -the cowboy jumped from the horse laughing in the face of danger