2 Points

How many moles are there in 7.24 grams of calcium carbonate? With work shown

balu736 [363]

Answer:

0.0723371390261859

8 0

3 years ago

Read 2 more answers

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU B

Julli [10]

Answer:

Full answer in explanation

Explanation:

High Tide - when tides are at their highest elevation
Low Tide - when tides are at their lowest elevation
Spring Tide - when tides experience the greatest range between high and low; occur at New and Full Moons
Neap Tide - when tides experience the least range between high and low; occur at 1st and 3rd Quarter Moons
Gravitational Pull - the invisible force that exists between all objects that have mass. The greater the mass, the greater the effect of the force
Tide - the daily change in ocean levels due to the gravitational force of the moon and the sun exerted on Earth

Hope this helps!

3 0

3 years ago

Where is the earth curst thinkest

Dafna11 [192]

The crust of the Earth is thickest beneath the continents.

6 0

3 years ago

How many atoms in the pictured molecule can form hydrogen bonds with water molecules?

ddd [48]

Answer:

3

Explanation:

Please, find the image with the pictured molecule for this question attached.

The molecule has one oxygen atom (red) covalently bonded to one hydrogen atom (light grey), one nitrogen atom (blue) covalently bonded to two hydrogen atoms (light grey), and two carbon atoms (dark grey) bonded each to two hydrogen atoms (light grey).

Hydrogen bondings are intermolecular bonds (bonds between atoms of two different molecules not between atoms of the same molecule). The hydrogen bonds are attractions between the positive end of one hydrogen atom and the negative end of a small atom of other molecule (N, O, or F).

Since, nitrogen and oxygen are much more electronegative than hydrogen atoms, you conclude that:

The two hydrogen atoms covalently bonded to the nitrogen atoms have considerably partial positive charge.

The hydrogen atom covalently bonded to the oxygen atom also has a a relative large partial positive charge.

So, those are three ends of the molecule that can form hydrogen bonds with water molecules.

The hydrogen bondings are only possible when hydrogen is covalently bonded to N, O or F atoms.

4 0

3 years ago

What is the job of these macromolecules

Ray Of Light [21]

Answer:

When small organic molecules bind together, they form larger molecules called biological macromolecules.Biological macromolecules are important cellular components and perform a wide array of functions necessary for the survival and growth of living organisms. The four major classes of biological macromolecules are carbohydrates, lipids, proteins, and nucleic acids.

(i hope this helps)

5 0

4 years ago