Check all correct statements concerning pentyne. contains 3 carbons contains 5 carbons contains 7 carbons has only single bonds has a double bond has a triple bond is an alkyne is an alkene is an alkane which statement is not true of alkenes? they are unsaturated. they are reactive. they have double bonds. they are more stable than alkanes. butene would have 4 carbon atoms and a bond. single triple double which type of reaction to alkenes generally undergo? substitution displacement redox addition if the carbon atom of hydrocarbon is bonded to less than 4 other atoms, the hydrocarbon is considered aromatic diluted saturated unsaturated which of the following apply to unsaturated hydrocarbons? select all that apply. they do not have isomers. they are more stable than saturated hydrocarbons. they will react readily with other elements and compounds. they have double and triple bonds. they only have single bonds. a straight chain hydrocarbon with the formula c5h10: has a triple c-c bond has a double c-c bond is essentially inert is unstable and extremely reactive what is the general formula for alkenes? cnh2n+2 cnh2n cnh2n+1 ch2n+2 choose the statements about benzene that are correct. all benzene hydrocarbons are cnhn+2 all c-c bonds share 2 pairs of electrons. three c-c bonds share 2 pairs of electrons. all of the c-c bonds are actually identical. the structure of the molecule is closed like a ring structure. the last one is attached as a pic.

There is an area in idaho named craters of the moon where most of the ground is covered with basalt, adark gray, igneous rock with no visibl crystals. what can you infer about the geographical history of the area?

Quickly! brainliest if two people answer! 1. the blood has red blood cells, white blood cells and platelets. red blood cells carry oxygen to other cells in the body. cells need oxygen to live. white blood cells destroy certain germs. they protect our bodies from disease. which question is answered in this paragraph? (a) what is the role of blood vessels? (b) what type of cells are attached to bones? (c) what type of blood cell to clot your blood? (d) what are the different types of blood cells? 2. which sentence from the section "stem cells" best explains the role of stem cells? (a) when one kind of cell stops working, stem cells can . (b) they can turn into that cell and take its place. (c) scientists are studying new ways to use stem cells. (d) these cells can people heal faster. 3. read the selection from the section "nerve cells." nerve cells send messages to the rest of our bodies. these messages move between the brain, spinal cord and various organs. nerve cells are also called neurons. fill in the blank. a "neuron" is a (a) cell that moves information from the brain to other parts of the body (b) stem cell that has both an axon and a dendrite (c) cell that controls the fingers of a body (d) cell that makes up the spinal cord 4. some muscles in our body move without us telling them to. these are called involuntary muscles. some examples are the cardiac muscle cells inside the heart. these cells the heart relax and fill with blood. what is the best definition of "involuntary" based on the context clues? (a) something that happens on its own (b) trying hard to do something (c) something moving back and forth (d) easily moved

For a patient with the following pes statement and interventions, which would be the most appropriate monitoring and evaluating data? pes statement: inadequate calcium intake related to food and nutrition related knowledge deficit as evidenced by statements that the only dietary source of calcium is milk and she believes that she is lactose intolerant. patient’s nutrition prescription is for a diet providing 1200 mg calcium per day. patient was provided with in-depth nutrition education on alternative dietary and supplement sources of calcium. a. calcium intake (at subsequent visit) b. knowledge assessment by asking patient to identify food sources from menus and shopping list (at the end of the current visit) c. serum calcium (at next visit) d. both a and b e. both a and c