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Anastaziya [24]
3 years ago
9

Maria examines a mixture that appears to be the same throughout. However, when she looks at a sample using a magnifying lens, sh

e can see small droplets of liquid surrounded by another liquid.
Which conclusion best fits her observations?
Chemistry
1 answer:
Darya [45]3 years ago
7 0

Answer:

However, when she looks at a sample using a magnifying lens, she can see small droplets of liquid surrounded by another liquid. Which conclusion best fits her observations? The mixture is a solution because it has the same appearance throughout the sample

pls mark me the brainliest

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1)A government meets to discuss policies about controlling pollution. Which is the most appropriate type of information for the
MA_775_DIABLO [31]

The most appropriate type of information for the government to use to make decisions is research reports containing scientific data.

<h3>What is pollution?</h3>

The term pollution has to do with the introduction of materials and energy that are harmful to the environment and also the fauna and flora.

1) The most appropriate type of information for the government to use to make decisions is research reports containing scientific data.

2) If the government committee learns about the side effects and decides the medication is not safe for public use, then the committee used an anecdote and did not use science to make the decision.

3) The type of research that might result in a law that restricts hunting of a particular species is research showing the species is endangered in other geographical areas

4) The statement that explains why a rare disease would get more research funding than a more common disease is; "organizations are concerned about the results of the research into the rare disease."

5) The product that the corporation is most likely manufacture is a sunscreen.

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4 0
2 years ago
Which factors can influence the length of time it takes for a half-life to occur?
vovikov84 [41]

Answer:

the radioactive half-life of an atom can depend on how it is bonded to other atoms. by changing the neighboring atoms that are bonded to a radioactive isotope, we can change its half-life.

Explanation:

4 0
3 years ago
You need to produce a buffer solution that has a pH of 5.26. You already have a solution that contains 10. mmol (millimoles) of
Andreas93 [3]

The question is incomplete, complete question is :

You need to produce a buffer solution that has a pH of 5.50. You already have a solution that contains 10 mmol (millimoles) of acetic acid. How many millimoles of acetate (the conjugate base of acetic acid) will you need to add to this solution? The pka of acetic acid is 4.74.

Answer:

33.11 millimoles of acetate we will need to add to this solution.

Explanation:

To calculate the pH of acidic buffer, we use the equation given by Henderson Hasselbalch:

pH=pK_a+\log(\frac{[salt]}{[acid]})

Where :

tex]pK_a[/tex] = negative logarithm of acid dissociation constant of acid

[salt] = Concentration of salt

[Acid] = Concentration of salt

We have:

pH = 5.26

pK_a=4.74

[salt] =[CH_3COO^-] = ?

[acid] = [CH_3COOH]=10.0 mmol

5.26=4.74+\log(\frac{[CH_3COO^-]}{[10.0 mmol]})

[CH_3COO^-]=33.11 mmol

33.11 millimoles of acetate we will need to add to this solution.

3 0
4 years ago
Arrange the isotopes of chlorine and sulfur in order of decreasing number of neutrons. Rank the isotopes from most to fewest neu
Tomtit [17]

The question is incomplete, the complete question is;

Arrange the isotopes of chlorine and sulfur in order of decreasing number of neutrons. Rank the isotopes from most to fewest neutrons. To rank items as equivalent S-33,S-36,S-34,Cl-35,S-32,Cl-37

The isotopes of sulphur arranged in order of decreasing number of neutrons is; S-36, S-34, S-33, S-32. The isotopes of chlorine arranged in order of decreasing number of neutrons is; Cl-37, Cl-35.

Isotopes are atoms of the same element having different mass numbers but the same atomic number.

Isotopes differ in their number of neutrons. The number of neutrons is obtained by subtracting the atomic number of an isotope from its mass number.

The number of neutrons in the isotopes of sulphur are;

S-36 (20 neutrons)

S-34 (18 neutrons)

S-33 (17 neutrons)

S-32 (16 neutrons)

The number of neutrons in the isotopes of chlorine are;

Cl-37 (20 neutrons)

Cl-35 (18 neutrons)

Learn more: brainly.com/question/13214440

4 0
3 years ago
2020-21 CCS 8SCI SMA 10 P.1.1, 1.22 of 18
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Answer:

d d d d  d d d d  d dd  d d d  d .

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6 0
3 years ago
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