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telo118 [61]
3 years ago
6

100 POINTS!!

Chemistry
1 answer:
VLD [36.1K]3 years ago
6 0

Answer:

Isnt it only 50 points??????????????????

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Construct <br> an isotope has 17 protons 20 neutrons and 18 electrons
ASHA 777 [7]
Add proton + neutrons = Mass 37

Proton is same as your atomic mass= 17

If you go on the periodic table look up 17 and it will give u the letter.
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3 years ago
Which question would most likely be studied by a chemist?
lbvjy [14]

Answer:

fd

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Determine the grams of barium chloride produced when 500 grams of barium hydroxide
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Answer:

Take about 2g barium hydroxide in a test tube. Add 1 g of ammonium chloride and mix with the help of a glass rod. Touch the bottom of the test tube with your palm. What do you feel? Is this an exothermic or endothermic reaction?

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3 years ago
Write the condensed formula from left to right, starting with (CH3)x where x is a number.
pochemuha

Complete question:

Write the condensed formula from left to right, starting with (CH3)x where x is a number.

See attached image for the structure formula of the compound

Answer:

(CH₃)₂CHC(CH₃)₃ named as 2,2,3-Trimethylbutane

Explanation:

If we number the longest chain of the carbon starting from the left, we will observe that there are four carbons in the straight chain as shown in the image.

Starting from first carbon from the left of the carbon chain, at carbon number number 2, there two alkyl group, that is two methyl (CH3 is two). Also at carbon number 3, there are three alkyl group, that is three methyl (CH3 is three).

The condensed formula will be written as;

(CH₃)₂CHC(CH₃)₃

This compound is named as 2,2,3-Trimethylbutane, an isomer of Heptane

3 0
4 years ago
What is the velocity of a plane traveling west if it flies 1575 km in 2.75 hours
dalvyx [7]

Answer:

572.72kmh (after decimal is repeating)

Explanation:

1575/2.75

8 0
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