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2 years ago

10

Instructions:Select the correct answer. A certain skin lotion is a fine mixture of water and various oils. This lotion is cloudy

and cannot be separated into oil and water by filtration. Moreover, its components do not separate when left standing. What type of mixture is it?

1 answer:

olga2289 [7]2 years ago

6 0

<span>What type of mixture is it:
Colloid </span>

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Answer:

Na has atomic number 11

which is less than magnesium has atomic number 12

ANSWER IS D

Explanation:

aluminum or Al is atomic 13 and Ca or calcium is atomic number 20 and rubidium or Rb is atomic number 37

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2 years ago

What is the most likely reason that nonmetals are electrical insulators?

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3 years ago

Dry ice is solid carbon dioxide. Instead of melting, solid carbon dioxide sublimes according to the following equation: CO2(s)→C

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Answer:

$m=8.79kg$

Explanation:

First of all we need to calculate the heat that the water in the cooler is able to release:

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V is the volume
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$Q=1 g/cm^3 *15000 cm^3*4.184 \frac{J}{g*^{\circ}C}*(10-90)^{\circ}C$

$Q=-5020800 J=-5020.8 kJ$

To calculate the mass of CO2 that sublimes:

$-Q=\Delta H_{sub}*m$

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2 years ago

Which statememt describes gravity? Select three options

Fofino [41]

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3 years ago

VLD [36.1K]

Answer:

<h3>The answer is 8.29 %</h3>

Explanation:

The percentage error of a certain measurement can be found by using the formula

$P(\%) = \frac{error}{actual \: \: number} \times 100\% \\$

From the question

actual density = 19.30g/L

error = 20.9 - 19.3 = 1.6

We have

$p(\%) = \frac{1.6}{19.3} \times 100 \\ = 8.290155440...$

We have the final answer as

<h3>8.29 %</h3>

Hope this helps you

5 0

3 years ago