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nadya68 [22]
4 years ago
8

How can you create low pressure in a capped bottle ?

Chemistry
1 answer:
kiruha [24]4 years ago
5 0
Blow a lot of air into it you can stick an air pump and when your done pumping quickly put tape over the hole
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A certain compound is made up of one carbon (c) atom, two bromine (br) atoms, and one oxygen (o) atom. what is the chemical form
padilas [110]
Answer:
           Chemical Formula  =  COBr₂

           Structural Formula  =  Attached Below

           IUPAC Name  =  Carbonic Dibromide

           Common Name  =  Bromophosgene

As we know Carbon has the tendency to form four covalent bonds, Oxygen can form two covalent bonds and Bromine can form a single bond. Keeping this in mind we can say that in given compound carbon is forming two single bonds with two bromine atoms and a double bond with oxygen atom. Therefore, the valencies of all elements in the given compound are satisfied and completed.

7 0
4 years ago
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A gas has a volume of 450.0 ml at standard pressure. If the temperature is held constant, what volume would the gas occupy if th
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A. 1800L !:$:!:):&/&/?)3&2!3?372&2!3)3$3!3!3?3:$heguejeneve
6 0
3 years ago
How many moles of hydrogen molecules (h2) would be required to produce two moles of hydrogen peroxide (h2o2)?
SashulF [63]
Their should be two molecules of hydrogen (h2) to produce 2 moles of h2O2
3 0
4 years ago
Scientist think that many species have one common ancestor. Which answer choice best tells why scientists think this way?
BigorU [14]

Answer:

homologous structures.

Explanation:

If you look at many different organisms, you will see similar structures. Like humans have a forearm, birds have a wing, whales have fins, leopards have legs. The bones evolvolved to fit the animal

3 0
3 years ago
If the [–OH] concentration in a bottle of Windex is 9.8 x 10^(–6) M, what is its pH and pOH and is it acidic, basic or neutral?
Hatshy [7]

Answer:

pOH = 5

pH = 9 → Solution is basic

Explanation:

We need to know that:

pH + pOH = 14

    < 7        ⇔     pH = 7    ⇔    > 7

   Acidic           Neutral           Basic

pOH = - log [OH⁻] → - log 9.8×10⁻⁶ = 5.00

pOH = 5

pH = 14 - 5 = 9

4 0
3 years ago
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