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Elden [556K]
2 years ago
13

Describe the chemical calcium-oxide.

Chemistry
1 answer:
timama [110]2 years ago
5 0

Answer:

Explanation:

Mallabone’s tests suggest there’s no risk the jacket liner will explode or heat up so much that it risks causing burns. The reaction also doesn’t produce acidic byproducts. And because calcium oxide doesn’t react with humidity (water vapor in the air), the liners can be stored for long periods and still work when needed.

Calcium oxide: A substance that gives off heat as it chemically reacts with water. Its chemical formula is CaO (which means each molecule is made up of one calcium atom and one oxygen atom).

Exothermic reaction: A chemical reaction that generates heat as it proceeds. (In Greek, “exo” means outside and “therm” means heat.)

Thought this might help ;)

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What is the relationship between the temperature of an object and the motion of its particles??
ivann1987 [24]
They are directly proportional to each other, in other words, when temperature of an object increases, the motion of it's particles also increases

Hope this helps!
7 0
3 years ago
How many moles of na are needed to produce 4 moles of nacl in this reaction? 2na + cl2 → 2nacl?
never [62]
14...........................
4 0
2 years ago
Un átomo X posee 29 protones y de carga +2 ¿Cuántos electrones tiene?
lesya [120]

Responder:

27

Explicación:

Dado que:

Número de protones en el átomo X = 29

Carga en el átomo X = +2

Si no hay cargo neto;

número de protones = número de electrones

Sin embargo, dado que el átomo X tiene una carga de +2 (dando 2 electrones).

Por lo tanto,

Número de electrones = número de protones - número de carga en el átomo)

Número de electrones = (29 - 2) = 27

4 0
2 years ago
Unlike acceleration and velocity, speed does NOT need to specify
jarptica [38.1K]

Answer:

C) mass.

Explanation:

The speed of a body is given by the relation between the displacement of a body in a given time. It can be considered the greatness that measures how fast a body moves.

Speed analysis is divided into two main topics: average speed and instantaneous speed. It is considered a vector quantity, that is, it has a module (numerical value), a direction (Ex .: vertical, horizontal) and a direction (Ex .: forward, upwards). However, for elementary problems, where there is displacement in only one direction, the so-called one-dimensional movement, it is advisable to treat it as a scalar quantity (with only numerical value).

The mass of an object is not an important factor in determining the speed of that object. However, time, direction and distance are important factors in determining speed.

3 0
3 years ago
What is the [OH-] concentration if the pOH is 1.5?​
Olin [163]

Answer:

[OH-] = 10^-1.5 = 0.0316 M

Explanation:

4 0
2 years ago
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