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aliya0001 [1]
3 years ago
6

A scientist is using robots to perform thousands of experiments on different

Chemistry
1 answer:
sladkih [1.3K]3 years ago
8 0

Answer: Screening

Explanation: A P E X

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2. What are the characteristics of an acid (at least 3)?
arlik [135]

Answer:Acids taste sour, react with metals, react with carbonates, and turn blue litmus paper red. Bases taste bitter, feel slippery, do not react with carbonates and turn red litmus paper blue.

Explanation:

  • Sour taste (though you should never use this characteristic to identify an acid in the lab)
  • Reacts with a metal to form hydrogen gas.
  • Increases the H+ concentration in water.
4 0
3 years ago
What is the longitude of the international date line
sveta [45]

Answer:

The International Date Line passes through the mid-Pacific Ocean and roughly follows a 180 degrees longitude north-south 

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8 0
3 years ago
Which of the following changes will always be true for a spontaneous reaction? (3 points)
Alika [10]
Answer is: <span>- delta G.
</span>The change in Gibbs free energy (ΔG), at constant temperature and pressure, is: <span>ΔG=ΔH−TΔS.
</span>ΔH<span> is the change in enthalpy.
</span>ΔS is change in entropy.
T is temperature of the system.
When ΔG is negative, a reaction (<span>occurs without the addition of external energy)</span><span> will be spontaneous (</span>exergonic).

3 0
3 years ago
What is chemical weathering
natima [27]

Explanation:

Chemical weathering is caused by rain water reacting with the mineral grains in rocks to form new minerals (clays) and soluble salts. These reactions occur particularly when the water is slightly acidic.

8 0
2 years ago
Classify each reaction as spontaneous or nonspontaneous. drag the appropriate items to their respective bins.
riadik2000 [5.3K]
Spontaneous reaction is a reaction  which   occurs  naturally  that is it  has capability  of  proceeding  in a  given direction without the  use  of outside source   of energy,  while  non spontaneous  reaction is a reaction which  require outside source   of energy.drag of the appropriate  item to  their  respective bins  is  a  non  spontaneous  reaction  since  outside  of  energy is  required  to drag  the  item.
7 0
3 years ago
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