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3 years ago

What is the molar mass of calcium carbonate? *

Chemistry

2 answers:

barxatty [35]3 years ago

6 0

The best answer for this is A because it answers the question 100% correct

Blizzard [7]3 years ago

6 0

Answer:

Explanation:

Molar mass is 100.0869 on the periodic table.

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The density of a material is a/n

Darya [45]

Answer:

Density is a measurement that compares the amount of matter an object has to its volume. An object with much matter in a certain volume has high density.

Explanation:

7 0

3 years ago

The ionization potential of Be atom is more than expected because it has -

Gre4nikov [31]

Answer:

(b) fully filled valence s orbitals

Explanation:

Electron configuration of Be: 1s22s2

2s2 is fully filled

6 0

3 years ago

Read 2 more answers

Sevin, the commercial name for an insecticide used to protect crops such as cotton, vegetables, and fruit, is made from carbamic

xeze [42]

Answer:

Explanation:

Ratio of mass of C , N , H and O

= .8007 :0.9333:0.2016:2.133

Ratio of moles of C , N , H and O

= .8007/12 : .9333 / 14 : 0.2016 / 1 : 2.133/16

= .0667 : .0667: .2016 : .1333

= .0667 / .0667 : .0667 / .0667 : .2016 /.0667 : .1333 / .0667

= 1 : 1 : 3: 2

Hence empirical formula = CNH₃O₂

7 .

Weight of titanium Ti = 1.916 g

Weight of oxygen = 3.196 - 1.916 = 1.28 g

Ratio of weight of Ti and O

= 1.916 : 1.28

Ratio of moles of Ti and O

1.916/48 : 1.28/16 [ Molecular weight of Titanium is 48 ]

= .04 : .08

= .04/.04 : .08/.04

= 1 :2 .

Empirical formula

TiO₂

5 0

3 years ago

Ill mark u brainlest if u answer me wit no links!

rodikova [14]

Answer: I believe it would be using group input to discuss and prepare preliminary designs

Explanation:

7 0

3 years ago

How many quarters are in $500

Alexandra [31]

Answer:

$\boxed{2000}$

Explanation:

$\text{4 quarters = \$1}\\\\\text{No. of quarters} = \text{\$500} \times \dfrac{\text{4 quarters}}{\text{\$1}} = \boxed{\textbf{2000 quarters}}$

8 0

3 years ago