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2 years ago

What is the age for rock layer C?

Chemistry

2 answers:

Viefleur [7K]2 years ago

8 0

Answer:

The principle of superposition states that the oldest sedimentary rock units are at the bottom, and the youngest are at the top. Based on this, layer C is oldest, followed by B and A.

Explanation:

kupik [55]2 years ago

5 0

Answer:

4.36 billion years

Explanation:

Before this study, the oldest dated rocks were from a body of rock known as the Acasta Gneiss in the Northwest Territories, which are 4.03 billion years old.

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3 years ago

Evaluate (714 mm )/(37 s ) to three significant figures and express answer in si units using an appropriate prefix.

romanna [79]

The SI base units for length is meter (m) and for time is seconds (s).

The given ratio is $\frac{714 mm}{37 s}$

$\frac{714 mm}{37 s} = 19.297 mm/s \simeq 19.3 mm/s$

Converting mm/s to m/s as:

Since, 1 mm/s = 0.001 m/s

So, $19.3 mm/s = 0.0193 m/s$

Since, zeroes to the left side of the non-zero number are not significant hence, the evaluation of $\frac{714 mm}{37 s}$ to three significant figures and answer in SI units is $0.0193 m/s$ .

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4 years ago

The mass of .10 moles of iron is:

Stels [109]

Answer:

so mass in gram=560grams

Explanation:

number of moles=10moles

molar mass=56grams/moles

mass in gram of Fe=?

as we know that

$number of moles=\frac{mass in gram}{molar mass}$

evaluating the formula

number of moles×molar mass=mass in gram

mass in gram=10moles×56grams/moles

mass in gram=560grams

i hope this will help you :)

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4 years ago

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