4 years ago

How many calcium (Ca) atoms are in the chemical formula:

1 answer:

3 0

There is one calcium, one carbon atom, and three oxygen atoms. Therefore, there are 5 atoms in CaCo3

You might be interested in

Zielflug [23.3K]

Answer:

The answer is

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume}$

From the question

mass of wood = 120 g

volume = 300 cm³

So the density of the wood is

$density = \frac{120}{300} \\ = \frac{12}{30} = \frac{2}{5}$

We have the final answer as

Hope this helps you

5 0

3 years ago

zavuch27 [327]

C + O2 --> CO2

18g C = 18/12.01 = 1.49 moles (Limiting Reagent)
62.3-14.3 = 48g oxygen that reacted
48g O = 3 moles

7 0

3 years ago

Anuta_ua [19.1K]

D the chemical energy in a batery changes to electrical when its used

7 0

3 years ago

VMariaS [17]

Answer:

acid or sunlight

Explanation:

7 0

3 years ago

vivado [14]

PH=14-pOH

pOH=-lg[OH⁻]

pH=14+lg[OH⁻]

pH=14+lg(8.7*10⁻¹²)=14-11.06=2,94

5 0

3 years ago