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Ksju [112]
3 years ago
11

CAN SOMEONE PLEASE HELP ILL MARK BRAINLIEST PLEASEE :(

Chemistry
1 answer:
katrin2010 [14]3 years ago
4 0

Answer:

I'm glad you asked!

Explanation:

The answer is the first one.Pure substances are substances that are mixed together.The picture shows that they are pure substances.Pure substances are always combined.So that makes it the first one.

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If the symbol X represents a central atom, Y represents outer atoms, and Z represents lone pairs on the central atom, the struct
Inessa05 [86]

Answer:

The correct option is: bent 109°

Explanation:

Covalent molecules are the molecules in which the atoms are linked by covalent bonds. The electrons involved in the formation of a covalent bond are known as shared pair or <u>bond pair of electrons</u>.

The three-dimensional arrangement of the atoms of a molecule in space is known its molecular structure or geometry.

<u>Given molecule</u>: XY₂, having two lone pairs around the central atom X.

Since the molecule XY₂ has <u>two lone pairs</u> and <u>two bond pairs</u> of electrons. Therefore according to the VSEPR theory, the given molecule has a <u>bent molecular geometry with 109° bond angle.</u>

7 0
4 years ago
Please help.
Fed [463]
<h2>Answer: O: 1s22s22p4</h2>

Explanation: In writing the electron configuration for oxygen the first two electrons will go in the 1s orbital. Since 1s can only hold two electrons the next 2 electrons for O go in the 2s orbital. The remaining four electrons will go in the 2p orbital. Therefore the O electron configuration will be 1s22s22p4.

8 0
3 years ago
Which term best describes how the solar system form?
KengaRu [80]
Which figure is closest to the age of the solar system?
4.5 billion years

What force pulled the solar system together out of a cloud of gas and dust?
Gravity

Which term best describes how the solar system is formed?
Gradually
5 0
3 years ago
Read 2 more answers
Chlorophyll a is one of the green pigments found in plants. Chlorophyll a has the molecular formula c55h72MgN4O5. How many atoms
Elan Coil [88]

Answer:

There are exactly 5

Explanation:

IF YOU BREAK IT UP IT WILL BE FIVE

3 0
4 years ago
1. Es un
artcher [175]

Answer:

A ) MOVIMIENTO

Explanation:

PLEASE MARK ME AS BRAINLIEST

7 0
3 years ago
Read 2 more answers
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