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Irina-Kira [14]
3 years ago
12

When fluorine gas is put into contact with calcium metal at high temperatures, calcium fluoride powder is created in an exotherm

ic reaction
Chemistry
1 answer:
juin [17]3 years ago
5 0

Answer:

True,When fluorine gas is put into contact with calcium metal at high temperatures, calcium fluoride powder is created in an exothermic reaction.

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Is this correct please help?
iren [92.7K]

Answer:

\boxed {\tt Number \ and \ unit}

Explanation:

The two requirements for a measurement are a <u>number</u> and a <u>unit.</u>

For example, here is a measurement:

38.6 cm

The <u>number</u> is 38.6 and the <u>unit</u> is cm, or centimeters.

Therefore, both <em>number </em>and <em>unit</em> are correct.

7 0
3 years ago
Identify and describe the appearance of the type of muscle tissue found in your heart
Masja [62]
Cardiac muscles are found only in the heart and are also striated. Smooth muscles ... Identify and describe the appearance of the type of muscle tissue found in your heart<span>.</span>
4 0
3 years ago
Why is Earth's surface rarely impacted by large objects that enter Earth's 13 points
Hatshy [7]

Answer:

A.Because Earth's atmosphere causes most objects to burn up before they reach the  surface.

Explanation:

The Earth's surface is rarely impacted by large objects that enters because the atmosphere causes most of the objects to burn up before they reach the surface.

There are different layers of the earth atmosphere which carries various amount of energy and energetic particles.

  • When a massive and a high solar object or dust or rocks are directed towards the earth, they are either deflected or burnt upon their passage through the atmosphere.
  • These energetic particles have ionizing properties and causes the solar particles to burn up.
  • This way the earth's surface is shielded from any impact of any sort.
6 0
3 years ago
How do you calculate mass using density and volume??
LiRa [457]
Just reorder the equation

Density= mass/volume
8 0
2 years ago
WHY IS A CREEP(creep as the science def) HARD TO DETECT ?( please need help to answer this question!!)
Elena L [17]

Answer:

Creep is the imperceptibly slow, steady, downward movement of slope-forming soil or rock. Movement is caused by shear stress sufficient to produce permanent deformation, but too small to produce shear failure. ... Continuous, where shear stress continuously exceeds the strength of the material.

Explanation:

4 0
2 years ago
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