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GalinKa [24]
3 years ago
5

PLEASE HELP WILL GIVE BRAINLIEST

Chemistry
1 answer:
anastassius [24]3 years ago
6 0

Answer:

should be  58.6c

Explanation:

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Need help on this question asap pleasee I would really appreciate it
Elza [17]

Answer:

See Explanation

Explanation:

An endothermic reaction is one in which energy is absorbed and the change in enthalpy for the reaction is positive.

If we look at the reaction 2HgO + 45kcal ----> 2Hg + O2; we will notice that

i) 45kcal of energy was taken in (absorbed) for the reaction to occur

ii) The value of the reaction enthalpy is positive

For these two reasons, the reaction is an endothermic reaction as written.

6 0
3 years ago
Which of the following statements correctly describe a photon? Select all that apply.
svetlana [45]

Answer:

I believe it is 3 and 4. I really hope it is but i am positive :)

6 0
3 years ago
Chemistry gcse
mart [117]
Yes, anything with carbonate, hydrogen carbonate (bicarbonate) at the end is a carbonate.

Examples:NaHCO3 (Sodium hydrogen carbonate or Sodium bicarbonate)Na2CO3 (Sodium carbonate)
8 0
3 years ago
can a light object that was hit with a small force accelerate as rapidly as a heavier object hit with a big force? why or why no
Tcecarenko [31]

The acceleration is defined by force divided by the mass of the object. So, When the smaller object is hit by a small force, it can produce equal acceleration which is same as that of the bigger body hit with large force.

<h3><u>Explanation:</u></h3>

Force is defined as the product of the mass of the body its applied to and the acceleration of the body in the direction of the force. So acceleration is force divided by the mass of the body.

Let the mass of the smaller body be m and that of the larger body be M.

The smaller force applied on the smaller body be f and the larger force applied on the larger body be F.

So acceleration of the larger body = F/M.

Acceleration of the smaller body = f/m.

For the accelerations to be same,

F/M = f/m.

Or F/f = M/m.

So when the ratio of the force applied on two bodies is in ratio of their masses, the acceleration becomes equal.

3 0
3 years ago
__________are when the Sun, Earth, and moon align in a straight line, the tides are higher than normal high
IceJOKER [234]
An eclipse i’m pretty sure right? Lunar maybe?
4 0
3 years ago
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