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3 years ago

Under which conditions can an eclipse occur?

Chemistry

2 answers:

NeX [460]3 years ago

8 0

Answer:

Moon blocks the sun

Explanation:

I hope this is right because i did this question 2 years ago.

dalvyx [7]3 years ago

4 0

Answer:

moon blocks the sun

Explanation:

the moon rotates around the earth and in some cases rotates perfectly to block out the sun and that is called an eclipse

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Aaliya knows that sliced apples turn brown when left out in the open air. She also knows that pouring certain liquids on then wi

fenix001 [56]

An apple should be cut into 4 equal pieces, then put each slice in a separate container and label accordingly with letters A, B, C, and Control. Put water, ginger ale, and lemon juice into containers A, B, and C respectively but leave the Control untouched. Observe which of the slices in containers A, B, C will stay the same color after the one in control turns brown, if the slice maintains its color then the liquid added prevents an apple slice from browning. The variables are the liquids added and the control is the slice that did not have anything added to it.

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3 years ago

Are humans pro-karyotic or eukaryotic?

barxatty [35]

Answer:

eukaryotic

Explanation:

all human cells—including those found in the brain, the heart, the muscles, and so on—are also eukaryotic.

3 0

3 years ago

The question is below

rodikova [14]

The anode is the electrode where the oxidation occurs.

Cathode is the electrode where the reducction occurs.

Equations:

Mn(2+) + 2e- ---> Mn(s) Eo = - 1.18 V
2Fe(3+) + 2e- ----> 2 Fe(2+) 2Eo = + 1.54 V

The electrons flow from the electrode with the lower Eo to the electrode with the higher Eo yielding to a positive voltage.

Eo = 1.54 V - (- 1.18) = 1.54 + 1.18 = 2.72

Answer: 2.72 V

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3 years ago

1. Discuss briefly system and surrounding using suitable examples, highlighting heat transfers. 14 marks

lisabon 2012 [21]

A system is a part of the physical universe defined arbitrarily for observation purposes.

Boundaries are a part of the physical universe that are around the system.

In a scientific sense, a system is a part of the physical universe whose boundaries, that is, the limit between the system and its surroundings, are defined arbitrarily for observation purposes.

A system contains at least a model, represented in a phenomenological way, and it can be isolated (no mass nor energy interactions), closed (no mass interactions) or open.

The surroundings are a part of the physical universe that are around the system.

An example is a coffee-maker, where coffee-maker the system and air represents the surroundings, the coffee-maker receives energy from a heat source to warm up itself and releases part of such energy to the air.

We kindly invite to check this question on systems and surroundings: brainly.com/question/6044762

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2 years ago

How many non-bonding electrons does phosphorus have?

Eddi Din [679]

10 non-bonding electrons

8 0

3 years ago

Read 2 more answers