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spin [16.1K]
3 years ago
14

scientist are always learning new things. which of the following shows how scientist use observations to gain new understanding

about the world?
Chemistry
2 answers:
Step2247 [10]3 years ago
8 0
Please provide whatever follows your question. Without it we cannot answer the question.
Black_prince [1.1K]3 years ago
5 0

What are the options? I can not help unless yo provide this information.


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Compute the values. Express these answers to the hundredths place (i.e., two digits after the decimal point). log ( 2.1 ) = ln (
zepelin [54]

Answer:

x = 4.17

y = 1.86

Explanation:

0.62 = log(x)

x = 10^0.62 = 4.17 ( to the nearest hundredth)

0.62 = ln(y)

y = e^0.62 = 1.86 (to the nearest hundredth)

8 0
3 years ago
A mixture of uneven distribution and easy separation is called_____. homogeneous heterogeneous a solution a pure substance
dem82 [27]
The correct answer is heterogeneous.
6 0
3 years ago
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Which of the following statements is true about catalysts? and Why?
LUCKY_DIMON [66]
I believe the correct answer from the choices listed above is option D. Catalysts lower the activation energy of a chemical reaction. It <span>is a substance which speeds up a reaction, but is chemically unchanged at the end of the reaction. It provides another pathway for the reaction to occur.</span>
8 0
3 years ago
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What effect will doubling the initial concentration of crystal violet have on the rate
Mnenie [13.5K]

When the initial concentration of crystal Violet is double, the rate of the reaction will rise up about four times the initial rate.

<h3>What is the rate of chemical reaction?</h3>

The rate of a chemical reaction refer to the rate of change in concentration of the reaction over the change in time. Introduction.

When you double the concentration the rate doubles. The rate is proportional to the square of the concentration of a reactant. When the rate is doubled the concentration rate goes up four times. The rate is not affected by the concentration of a reactant.

Learn more about rate of chemical reaction here.

brainly.com/question/24795637

6 0
2 years ago
Combining a base and an acid forms
shutvik [7]
Base + acid = salt + water

Example :

<span>HCl + NaOH = NaCl + H</span>₂<span>O
</span>
Answer A

hope this helps!

8 0
3 years ago
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