Can someone please help me on some chemistry questions?! (Part 2 of 5)?

Physical Therapy | admin | December 23, 2011 at 10:36 am

Question by Julie R : Can someone please help me on some chemistry questions?! (Part 2 of 5)?
The therapy is used to 11.Radiation ____.a.Initiate activation analysis of neutroniquecancer b.Treatéléments c.Detectmécanismes d.Study12.What reaction happens in a chain reaction? A.Radioactive reagents are deposited on bars contrôle.b.Products starting a new reaction are libérés.c.Products which are radioactive with two pieces perdus.d.Reactants diviser.13.Lorsque an iron nail is ground into powder, the ____ masse.a.Decreasesb . mêmesc.Increasesd.Cannot Stays the déterminéePreuves 14.Which be more clearly supports the hypothesis that liquids are composed of small particles in motion? a.Detergent makes the water droplets flatten. b.Glass breaks when falling, but a spring walk rebondit.solides c.Milk when viewed under a microscope.d.Electric current movement with an acid solution produces bulles.e.Water forms small droplets or balls of aluminum foil .15 . What is the mass in grams of 5.90 mol C8H18? (C = 12.0 amu, H = 1.01 amu) is a.389gb.19.4gc.674gd.0.0512g16.Quel percent composition of chromium in BaCr4? A.4.87%% b.25.2 c.20.5 %% d.9.47 17.How many electrons are shared in a single covalent bond? a.4b.1c.6d.218.How more electrons are shared in a double covalent bond? a.4b.6c.2d.119.Milk is a substance. It is composed of variable amounts of water, sugars, fats and other molecules. Its properties vary depending on the sample. It can be separated into other substances by physical means. What is milk, an example of? A.Phaseb.Electronsubstance c.Pured.Mixture20.One choices below is a compound and the others are mixtures. Which is a compound? A.Iron oxide depeinture b.Acrylicc.Aggregate concrètesd.Office papierMeilleure response:
Answer by Roop


11. treat cancer12.products starting the new reaction are libérés13.stays mêmes14.d17, 118.2 b phase 19.a20.may agggregate concrete paint or acrylic.


give your answer to this question below!

Physical Therapy

Tags: , , , , , ,

1 Comment

  1. Dr. Buzz says:
    December 23, 2011 at 11:11 am

    Julie,

    11. Radiation therapy is used to ____.
    b. Treat cancer

    12. What happens in a chain reaction?
    b. Products that start a new reaction are released.

    13. When an iron nail is ground into powder, its mass ____.
    b. Stays the same

    14. Which evidence most clearly supports the hypothesis that liquids are composed of small particles in motion?
    c. Milk solids wander around when viewed under a microscope.

    15. What is the mass in grams of 5.90 mol C8H18? (C = 12.0 amu; H = 1.01 amu)
    c. 674g

    16. What is the percent composition of chromium in BaCr4?
    c. 20.5% (you meant BaCrO4?)

    17. How many electrons are shared in a single covalent bond?
    d. 2

    18. How many electrons are shared in a double covalent bond?
    a. 4

    19. Milk is a substance. It is composed of varying amounts of water, sugars, fats, and other molecules. Its properties vary depending on the sample. It can be separated into other substances by physical means. What is milk an example of?
    d. Mixture

    20. One of the choices below is a compound and the others are mixtures. Which one is a compound?
    a. Iron oxide

    Hope that helped!