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Sliva [168]
2 years ago
8

1. How many calcium atoms are in 8CaOH?

Chemistry
2 answers:
Vedmedyk [2.9K]2 years ago
6 0

Answer:

8

Explanation:

the number before the abbrviation for calcium (Ca) shows how many calcium there is.

Vesna [10]2 years ago
4 0

Answer:one

Explanation:

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15. In the image given below, magnesium metal is coiled as a thin ribbon. What property of metal is exhibited by it? A Ductility
Sholpan [36]

Answer: The property of magnesium that is exhibited by it is DUCTILITY. The correct option is A.

Explanation:

Magnesium is a member of the alkaline earth metals. It occurs in nature, only in the combined state, as Epsom salt, dolomite and in many trioxosilicates( IV) including talc and asbestos. They have the following physical properties:

--> Appearance: they are silvery-white solids

--> Relative density: It has a relative density of 1.74

--> DUCTILITY: it's very ductile in nature

--> melting point: it has a melting point of 660°C.

--> Conductivity: They are good conductor of heat and electricity.

Furthermore, DUCTILITY is the physical property of a metal associated with the ability to be hammered thin or stretched into wire without breaking. A metal such as magnesium can therefore be coiled as a thin ribbon without fracturing due to its ductile physical properties.

8 0
2 years ago
Which is a property of every mixture?
loris [4]
One substance can be separated from another through physical means
7 0
3 years ago
Read 2 more answers
A sample of lead has a density of 11.3 g/cm3 and a mass of 123 grams, what is the volume of the sample?
SVEN [57.7K]

Answer:

The answer is

<h2>11.18 cm³</h2>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

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

From the question

mass = 123 g

density = 11.3 g/cm³

The volume is

volume =  \frac{123}{11.3}   \\  = 11.18181818...

We have the final answer as

<h3>11.18 cm³</h3>

Hope this helps you

3 0
3 years ago
Why does the ice melt when you hold it in your hand? A.Heat is transferred from your hand to the ice cube. B.Heat from the ice c
Thepotemich [5.8K]
A. Heat is transferred from your hand to the ice cube.
3 0
3 years ago
Help me with both questions
Natasha2012 [34]
Sorry bro but idk maybe its :1 L=<span>103</span><span>mL</span>
3 0
3 years ago
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