Explanation:
Perform the following operation
and express the answer in
scientific notation.
5.4x103 x 1.2x107
The definition of a Lewis acid is a substance that accepts an electron to form a covalent bond. So, this definition directly permits you to answer the question. <span>The term that best describes a compound that accepts electrons from another substance to form a covalent bond is Lewis acid.</span>
The Answer is 10 it a little difficult to explain but I’ll try my best
energy of the wave is equal to 43.6 × 10⁻²¹ J
Explanation:
The energy of a wave knowing the frequency is calculated using the following formula:
energy = plank constant × frequency
energy = 6.63 x 10⁻³⁴ J·s × 6.58 × 10¹³ s⁻¹ (Hz)
energy = 43.6 × 10⁻²¹ J
Learn more about:
energy of a electromagnetic wave
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<span>No. Radiocarbon dating has an effective range to only about 62,000 years ago (and the further back you go, the higher your error will be). The fossils in the shale are much older than that, so you can be sure that the leaves are not recent enough to be dated that way.</span>