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iren2701 [21]
3 years ago
9

A Marine bome includes animals like fish, sharks, whales, and freshwater. True or false​

Chemistry
1 answer:
Pie3 years ago
4 0

Answer: True (happy to help)

Explanation:

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I need you to solve for me plzzzzzz
Sergeu [11.5K]

Answer:

.0556 L

Explanation:

First, convert the 1.35 M to 1.35 mol/L in order for the units to correctly cancel out.

Then, multiply (0.0725 moles Na2CO3/1) times (L/ 1.35 mol).

Finally, the answer will be .0556 L.

<h3 />
3 0
2 years ago
Calculate the number of moles of caco3 (calcium carbonate, or limestone) in a 20.0g sample of this substance
Brrunno [24]
First calculate for the molar mass of the given formula unit, CaCO₃. This can be done by adding up the product when the number of atom is multiplied to its individual molar mass as shown below.

     molar mass of CaCO₃ = (1 mol Ca)(40 g Ca/mol Ca) + (1 mol C)(12 g of C/1 mol of C) + (3 mols of O)(16 g O/1 mol O) = 100 g/mol of CaCO₃

Then, divide the given amount of substance by the calculated molar mass.
            number of moles = (20 g)(1 mol of CaCO₃/100 g)
             number of moles = 0.2 moles of CaCO₃

<em>Answer: 0.2 moles</em>
6 0
3 years ago
An ionic compound is formed when there is a reaction between the elements
hjlf

Answer:

An ionic compound is formed when there is a reaction between the elements whose ions are electrostatically attracted.

Explanation:

The ionic compounds form crystalline networks with ionic bonding. Electrostatic attraction is a very strong bond that is very difficult to break. The stability of the ionic compound depends on the lattice energy, the higher it is, the more stable the compound is and the lattice energy is that which is released in the formation. At room temperature they are always in a solid state, because the bonds are very close and as stated before, they are difficult to break (providing a lot of energy)

4 0
3 years ago
Convert 15.9mm to its equivalent measurement in km
STALIN [3.7K]

Answer:

0.0000159

Explanation:

Divide 15.9 by 1000000, because 1 kilometer equals 1000000 millimeters.

6 0
3 years ago
When rearranging the formula for density, mass is equal to:?
Jet001 [13]
Mass equals density times volume
Because D=m/v
Multiply by v
Dv=m
8 0
3 years ago
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