2 years ago

Which is the last thing to be seen before a total eclipse?

1 answer:

8 0

When the Moon has nearly blocked out the sun at the last few minutes before the total solar eclipse, you will see some points of light surrounding the edges of the dark Moon. These look like a string of beads wrapped around the edges and are appropriately called Baily's Beads. They are named after the astronomer Francis Baily who first noticed them in the 18th century. These beads only appear for a few brief minutes before the total solar eclipse occurs.

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Why is oxygen written with a subscript 2 in CO2?

Alexeev081 [22]

Answer:

Explanation:

the answer is b

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3 years ago

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there are 28L of soup in a pot. Marshall serves 400mL in each bowl. If he fills 16 bowls how much soup is left in the pot? in li

Ne4ueva [31]

Total in pot=28 L
400 mL in each bowl
16 bowls filled
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3 years ago

In an ion, the number of electrons is _____ to the number of protons

zaharov [31]

Answer:

more/less depending on if it lost or gained electrons during the ionic bond process

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1 year ago

Describe what half-life is. answer in a paragraph please.

dangina [55]

Half-life is defined as the quantity to reduce to half of its initial value.

Explanation:

The term half-life is generally used in nuclear physics which describes how long a stable atom can survive a radioactive decay or how quickly an unstable stable atom can undergo radioactive decay. Half-life is a constant and does not have any units.

The formula to calculate half-life:

N(t) = $\bold{N_{0} e^{-\lambda t}}$

Here N(t) is the quantity which is “not decayed”.

$N_0$ is the “initial quantity” of the substance.

λ is the “decay constant”

4 0

3 years ago

Which hand is negatively changed? A. B. C. D.

Lemur [1.5K]

Answer:

I think B

Explanation:

There are more negative ions than positive ions

6 0

3 years ago