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3 years ago

How many grams of aluminum would be in 3.0 moles of aluminum?

Chemistry

1 answer:

Mariana [72]3 years ago

3 0

Answer:

Explanation:

The number of grams of Aluminum in one mole of Aluminum is the number under the element's symbol, on the Periodic Table of the elements, which is 26.981. With compounds, water, for example, is an oxygen and two hydrogens. So you would add 15.999 to 2(1.0079). You multiply the hydrogen's number by two because there's two of them.

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What is the percent by mass of potassium in KFe(CN)?

vladimir1956 [14]

Answer:

Explanation:

1. Add the atomic mass of all the elements.

39+55.8+12+14= 120.8

2.Divide atomic mass of potassium by total atomic mass

$39/120.8= .323$

2. Multiply by 100

$.323*100= %32.3$ %32.3

8 0

4 years ago

Atoms in a liquid have _________ energy than atoms in a solid, so the easiest way to change a solid to a liquid is to add ______

Nitella [24]

More,
heat/ energy,
melting point

4 0

3 years ago

Which particles may be gained lost or shared by an atom when it forms a chemical bond?

Maru [420]

Answer:

Explanation:

electrons can be lost by one particle, and gained by another particle

6 0

3 years ago

For full credit, show the details of each calculation below. Use more paper if needed.

vredina [299]

Answer:

Explanation:

1) a, b) A solution is a homogeneous mixture of two or more substances. The solute is the substance present in a smaller amount, and the solvent is the substance present in a larger amount.

c) A saturated solution contains the maximum amount of a solute that will dissolve in a given solvent at a specific temperature.

2) See picture in attachment.

8 0

3 years ago

What is a hot spot? Own words

Grace [21]

Answer: Hotspot: A hotspot is a physical location where people can access the Internet, typically using Wi-Fi, via a wireless local area network (WLAN) with a router connected to an Internet service provider. ... While many public hotspots offer free wireless access on an open network, others require payment.

A hot spot is an area on Earth over a mantle plume or an area under the rocky outer layer of Earth, called the crust, where magma is hotter than surrounding magma. The magma plume causes melting and thinning of the rocky crust and widespread volcanic activity.

Explanation: MY own word's.

6 0

3 years ago