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DerKrebs [107]
3 years ago
9

NEED HELP NOW 100 POINTS 5 pictures to answer WILL MARK BRAINLIEST ANSWER!!!!!!!!! on question 9 and 10 you have to write a writ

ten short response.

Chemistry
2 answers:
Sholpan [36]3 years ago
5 0

1-a

2-c

3-a

4-b

hope it helps you bye

irga5000 [103]3 years ago
3 0
Ok number one  is A number 2 is C  number 3 is A number 4 is  B hope it helps 
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Question 1 (4 points)
lutik1710 [3]

B= CH2O

empirical formula using the simplest ratio of atoms in the compound

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3 years ago
What do you call relative amounts of different sizes of mineral particles in a soil
TiliK225 [7]
Salt, silt, and clay particles
7 0
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What does potassium hydroxide and sulphuric acid make?
bekas [8.4K]

Base + Acid = Water + Salt

It makes salt water... water and potassium sulfate

Balanced rxn is:

2KOH + H2SO4 = 2H2O + KSO4



4 0
3 years ago
Read 2 more answers
One atomic model describes electrons moving in clouds around the nucleus.
bixtya [17]

Answer: D.  It is the currently accepted atomic model.

Explanation:

It is the mordern atomic model, also known as the Electron Cloud Model. Indicating that the nucleus of an atom is surrounded by a cloud of electrons.

8 0
3 years ago
Marcus measured the masses and volumes of samples of four different substances, and he calculated their densities. The table sho
Zina [86]

<u>Given:</u>

Calculated density values-

Aluminum = 2.7 g/cm3

Copper = 9.0 g/cm3

Iron = 7.9 g/cm3

Titanium = 4.8 g/cm3

Unknown sample mass = 9.5 g

Sample volume = 2.1 cm3

<u>To determine:</u>

The identity of the unknown sample

<u>Explanation:</u>

'Density' is a physical parameter which can be used to identify the nature of the unknown substance.

Density = Mass/Volume

For the unknown sample

Density = 9.5 g/2.1 cm3 = 4.52 g/cm3

This matches closely with the calculated density of titanium

Ans: The unknown substance is made of titanium

4 0
3 years ago
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