2 years ago

What STARTING element undergoes alpha decay to yield uranium-234 (U) as a PRODUCT?

Chemistry

1 answer:

nadezda [96]2 years ago

3 0

Uranium-238 is the element that undergoes decay to yield uranium-234

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cupoosta [38]

Answer:

Option (2)

Explanation:

Since the amount of each sample is the same, we are looking for the metal with the greatest density, which is copper.

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1 year ago

Which of the following molecules/ions has a pyramid shape?

andreev551 [17]

i think its a right tringle

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3 years ago

How many moles of iron are there in 55.85g of Fe3O4

soldier1979 [14.2K]

Answer:

• Molecular mass of Iron (III) tetraoxide

$\dashrightarrow \: { \tt{(56 \times 3) + (16 \times 4)}} \\ = { \tt{168 + 64}} \\ = { \tt{232\:g}}$

[ molar masses: Fe → 56, O → 16 ]

$\dashrightarrow \:{ \rm{232 \: g \: = 1 \: mole}} \\ \\ \dashrightarrow \: { \rm{55.85 \: g = ( \frac{55.85}{232}) \: moles }} \\ \\ \dashrightarrow \: { \boxed{ \tt{ = 0.24 \: moles}}}$

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2 years ago

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emmasim [6.3K]

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3 years ago

Read 2 more answers

If the copper cube had a mass of 28.7 grams and a volume of 3.2 mL, what would its density be?

Otrada [13]

Answer:

ρ=m÷v

=28.7÷3.2

≈8.97 g/m³

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3 years ago