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Firlakuza [10]
2 years ago
9

Help needed ASAP! Thanks for helping!!:)

Chemistry
1 answer:
yulyashka [42]2 years ago
6 0

Answer:

I hope this helps you :)

Explanation:

  1. Question 1 - B
  2. Question 2 - A
  3. Question 3 - D
  4. Question 4 - C
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What is the most effective way to differentiate between potassium feldspar and plagioclase feldspar?
Tresset [83]
<span>plagioclase feldspars have striations and potassium feldspars don't have striations</span>
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4 years ago
What is the most corrosive element in the periodic table?
Fittoniya [83]

Answer:

Fluorine is the most corrosive element in the periodic table.

Explanation:

4 0
3 years ago
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4. Describe a solution and tell if the parts are mixed chemically or physically help please will give brainliest
Stels [109]
Hello There!

The solution: salt water
Mix: Physical as you could still separate them

A chemical mix can't be reversed.

Hope This Helps You!
Good Luck :) 

- Hannah ❤
5 0
4 years ago
Find the empirical formula of the compound ribose, a simple sugar often used as a nutritional supplement. A 14.229 g sample of r
MakcuM [25]

Answer:

CH2O

Explanation:

Firstly, we need to convert the masses of the elements to percentage compositions. This can be done by placing the mass of each element over the total mass multiplied by 100% . We can start with carbon.

C = 5.692/14.229 * 100 = 40%

O = 7.582/14.229 * 100 = 53.29%

H = 0.955/14.229 * 100 = 6.71%

We then proceed to divide each percentage composition by their atomic mass of 12, 16 and 1 respectively.

C = 40/12 = 3.333

O = 53.29/16 = 3.33

H = 6.71/2 = 6.71

Dividing by the smaller value which is 3.33

C = 3.33/3.33 = 1

O = 3.33/3.33= 1

H = 6.71/3.33 = 2

The empirical formula of the compound ribose is CH2O

6 0
3 years ago
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What is the ionic formula of the compound formed by Co3+ and the phosphorus ion? What is the name of the compound formed based o
klasskru [66]

Answer: The ionic formula of compound is CoP and the name is cobalt phosphide.

Explanation:

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.

Here element Co is having an oxidation state of +3 called as Co^{3+} cation and phosphprous forms P^{3-} anion with oxidation state of -3. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral CoP

The nomenclature of ionic compounds is given by:

1. Positive is written first followed by the oxidation state of metal in roman numerals in square brackets.

2. The negative ion is written next and a suffix is added at the end of the negative ion. The suffix written is '-ide'.

Thus the name of CoP is cobalt phosphide.

4 0
3 years ago
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