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3 years ago

Which statement best describes a physical change?

Chemistry

1 answer:

yulyashka [42]3 years ago

7 0

The answer is the third one .

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Which property is true for metals

san4es73 [151]

most metals conduct electricity and are very dull to the look. most metals are toxic if eaten and are hard.

aluminum is a type of metal they is softer than the opther and conducts eletricty like a boss.

nickel on the opther hand is also a metal but does not conduct a lot of electricy.

metals can be bent and others can break,

6 0

3 years ago

Read 2 more answers

What is the % by volume of 50mL of ethylene glycol dissolved in 950mL of H2O?

MariettaO [177]

Answer:

5.0 %

Explanation:

Given data

Volume of ethylene glycol (solute): 50 mL

Volume of water (solvent): 950 mL

Step 1: Calculate the volume of solution

If we assume that <em>the volumes are additive</em>, the volume of the solution is equal to the sum of the volume of the solute and the solvent.

V = 50 mL + 950 mL = 1000 mL

Step 2: Calculate the percent by volume

We will use the following expression.

$\% v/v = \frac{volume\ of\ solute}{volume\ of\ solution} \times 100 \% = \frac{50mL}{1000mL} \times 100 \% = 5.0\%$

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3 years ago

How many bonds does carbon atom form

Neporo4naja [7]

Answer: Four Bonds

Explanation:

6 0

3 years ago

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What is the alpha decay of Radon-198?

Delvig [45]

86198Rn => 24He + 84194Po

The radon is shown on the left, and the alpha particle, which is a helium nucleus, is shown of the right with the polonium.

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2 years ago

What substances make up an iron pot

LUCKY_DIMON [66]

Answer:

Iron

Explanation:

3 0

3 years ago