HOLMIUM

Chemistry

1 answer:

Sophie [7]3 years ago

8 0

Answer:

1. The graph where x axis and y axis are present is called coordinate.

4. 18

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When an electron moves from a lower energy level to a higher energy level, the atom:

Ede4ka [16]

Answer:

A. absorbs light

Explanation:

For an electron to move from a lower energy level to a higher energy level, energy needs to be added to the atom.

In most cases this required energy will be light: The electron of the atom will absorb the energy of the light and move to a higher energy level.

When said electron comes back to the lower energy level, the atom will conversely give off light.

5 0

2 years ago

I need help please!!! Name the parts making up the female part of the flower and state what each part does. Please use your own

Greeley [361]

<h2>Answer:-</h2>

The female part is the pistil. The pistil usually is located in the center of the flower and is made up of three parts: the stigma, style, and ovary. The stigma is the sticky knob at the top of the pistil. It is attached to the long, tubelike structure called the style.

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2 years ago

The main reason that scientists would do a descriptive investigation is that _____. A. they don't like doing normal experiments

andre [41]

Answer:

d) They're studying something for which they cant do an experiment

Explanation:

8 0

3 years ago

Read 2 more answers

Tim has just jumped out of an airplane.The force of gravity pulls him downward,while air resistance pushes him upward

lesya692 [45]

Answer:

ya, it's gravity. What is the problem??

Explanation:

5 0

2 years ago

Saline solutions (nacl in water) used to deliver intravenous drugs are 0.89%(w/v). what mass of nacl is found in 200 ml of such

Gnom [1K]

A ratio of 0.89% w / v or 0.0089 in fraction means that there is 0.89 weight of NaCl pero volume of solution. Therefore the mass of NaCl is:

mass NaCl = 0.0089 * 200

mass NaCl = 1.78 grams

6 0

3 years ago