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3 years ago

Is radium flammable?

Chemistry

1 answer:

rewona [7]3 years ago

4 0

Answer:

Explanation:

Radium is silvery, lustrous, soft, intensely radioactive. It readily oxidizes on exposure to air, turning from almost pure white to black. Radium is luminescent, corrodes in water to form radium hydroxide. Although is the heaviest member of the alkaline-earth group it is the most volatile.

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4 years ago

The density of gold is 19.3 g/cm3. What is the volume of a 13 g gold nugget? (Density: D = ) .25 cm3 .67 cm3 1.48 cm3 2.50 cm3

zhannawk [14.2K]

Answer:

<h3>The answer is 0.67 cm³ </h3>

Explanation:

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<h3> $Density = \frac{mass}{volume}$ </h3>

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<h3> $volume = \frac{mass}{Density}$ </h3>

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3 years ago

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Need help on B and C please!!

puteri [66]

B. The reason the temperature experienced no change in group c is because it was likely the control group.
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