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Burka [1]
3 years ago
7

What causes eclipses? Check all that apply.

Chemistry
2 answers:
pickupchik [31]3 years ago
8 0
The moon moves in front of the sun
Roman55 [17]3 years ago
6 0

Answer:

An eclipse happens when one astronomical body blocks light from or to another.

Explanation:

The Moon moves into the shadow of Earth cast by the Sun. When the Moon passes through the outer part of Earth’s shadow—the penumbra, where the light of the Sun is only partly extinguished—the Moon dims only slightly in what is called a penumbral eclipse. When the Moon passes through the central part of Earth’s shadow—the umbra, where the direct light of the Sun is totally blocked—the lunar eclipse is considered partial if the Moon is partly within the umbra or total if the Moon is completely within it.

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Answer:

Speed is measured over time.

Explanation:

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3 years ago
Write a net ionic equation to show that hydroiodic acid, hi, behaves as an acid in water.
OlgaM077 [116]

Answer:

HI(aq) + H₂O(ℓ) ⟶ H₃O⁺(aq) + I⁻(aq)

Explanation:

The HI donates a proton to the water, converting it to a hydronium ion

HI(aq) + H₂O(ℓ) ⟶ H₃O⁺(aq) + I⁻(aq)

Thus, the HI is behaving like a Brønsted acid.

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3 years ago
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ad-work [718]

Answer:When you add baking powder to water or milk, the alkali and the acidreact with one another and produce carbon dioxide – the bubbles. Sodium bicarbonate is a weak base which is commonly known as baking soda and used in cooking. It weakly ionizes in water: NaHCO3 + H2O → H2CO3 + (OH-) + (Na+). u need to stop deleteing my answers ughh

Explanation:

4 0
3 years ago
How much does REAL carbon fiber cost ? lets say as big as a piece of paper
coldgirl [10]

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Today, the average total production cost of “standard modulus” carbon fiber is in the range of $7-9 per pound.

8 0
3 years ago
Does CH3F have a higher boiling point than BRF?
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The boiling point of the fluoromethane (CH3F) is higher than that of fluorine (F2).

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