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Nutka1998 [239]
3 years ago
15

Hello :)

Chemistry
1 answer:
Furkat [3]3 years ago
6 0
I don't know if this will help but here are some chemical properties of acids and bases : 
taste: sour (vinegar)
base: bitter (baking soda)

smell: frequently burns nose
base: usually no smell (except NH3)

texture: sticky
base: slippery

reactivity: frequently react with metals to form H2
base: react with many oils and fats
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Anastasy [175]
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3 years ago
Which of the following information is necessary to describe an object's motion?
Zepler [3.9K]

Answer: The correct option is B.

Explanation: To describe the motion of an object, we use the equations of motion.

  1. v=u+at
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  3. 2as=v^2-u^2

From the above equations, we require position, speed and direction through which we an calculate the displacement, velocity and acceleration.

To calculate the complete motion of an object, we require all the three factors.

Hence, the correct option is B.

8 0
2 years ago
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The answer will be C. Variable

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8 0
3 years ago
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A sample of nitrogen monoxide occupies a volume of 400 mL at 100 °C and 720 mmHg.
konstantin123 [22]
The volume of nitrogen  monoxide that   occupy  at  STP  is=  277  Ml

     calculation
 The volume is obtained  using   the combined  gas law  that is P1V1/T1= P2V2?
Where  P1 = 720  MmHg
            V1 = 400ml
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At  STP  temperature  =  273 K  and  pressure=  760 mm  hg
therefore T2=  273 k
               p2 = 760  mmhg
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make  V2  the subject of the formula

V2= (T2 ×P1 ×V1)/(P2×T1)

V2  is therefore  = (273k  x720 mmhg x 400 ml)/(760 mmhg x373K) = 277  Ml
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2 years ago
Based on the name, which substance is a covalent compound?
jek_recluse [69]
Compounds that has two elements on the formula can be bonded by ionic or covalent bond. If the compound is a metal and a non-metal then it will be ionic bonding. However, when it involves two non-metals, then it will have covalent bonding.
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