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GREYUIT [131]
3 years ago
13

Which of these questions is a scientific question?

Chemistry
1 answer:
n200080 [17]3 years ago
5 0
A or B but i'm leaning more towards A
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A homogeneous mixture is made by dissolving some salt in a beaker of water. The mixture is referred to as a
CaHeK987 [17]
In that case, the salt<span> would be the </span>solvent<span> and the </span>water<span> the </span><span>solute. 
So, it would be solution!

Have a nice day! :D</span>
3 0
3 years ago
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Which is not on a station model? *
Fiesta28 [93]
The answer is fronts
6 0
2 years ago
How many atoms are in 20.6 moles of curium
Harman [31]

Answer: 1.24 × 10^25

Explanation:

\frac{20.6 moles}{1} × \frac{6.022 * 10^{24} }{1 Mole}

Using our knowledge in unit conversions, we know the mole units cancel each other out and all there's left is the atom unit. From here we can multiply the fractions and eventually we end with the number 124.0532 × 10^23

According to the scientific notation rules, the number to the left of the decimal cannot exceed 10 so we have to move the decimal to the left two spaces. With this change, we also have to change the exponent of the 10. Because we moved the decimal point two spaces to the left, that means we have 10^25.

4 0
3 years ago
Why are the atoms of the group 8 elements unreactive??​
anygoal [31]

Answer:

because that is the last group the ones before it are more reactive im sorry if this not what you were looking for.

3 0
3 years ago
A piece of magnesium is in the shape of a cylinder with a height of 6.62 cm and a diameter of 2.34 cm. If the magnesium sample h
frez [133]

Answer:

0.600 g/cm³

Explanation:

Step 1: Given data

  • Height of the cylinder (h): 6.62 cm
  • Diameter of the cylinder (d): 2.34 cm
  • Mass of the cylinder (m): 17.1 g

Step 2: Calculate the volume of the cylinder

First, we have to determine the radius, which is half of the diameter.

r = d/2 = 2.34 cm/2 = 1.17 cm

Then, we use the formula for the volume of the cylinder.

V= π × r² × h

V= π × (1.17 cm)² × 6.62 cm

V = 28.5 cm³

Step 3: Calculate the density (ρ) of the sample

The density is equal to the mass divided by the volume.

ρ = m/V

ρ = 17.1 g/28.5 cm³

ρ = 0.600 g/cm³

8 0
2 years ago
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