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djyliett [7]
3 years ago
15

What is happening if there is no overall energy change during a chemical reaction?

Chemistry
1 answer:
sergeinik [125]3 years ago
3 0

Answer:

The law of conservation of energystates that matter cannot be created or destroyed. Whether a chemical reaction absorbs or releases energy,there is no overall change in the amount of energy during the reaction.

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If your weight is 120 pounds
denis23 [38]

Explanation:

Weight is 120 pounds and mass is 54 kg

The mass of an object is same everywhere. If we were on the moon, its mass will remain to be 54 kg.

Weight of an object is given by :

W=m\times g

g is acceleration due to gravity on that surface

For moon, it is 1/6 the gravitational  force on Earth, g = 1.63 m/s²

1 pound = 4.45 N

It means my weight is 533.78 N

On the surface of Moon is will be :

W=\dfrac{533.78}{1.63}\\W=327.47\ N

5 0
3 years ago
Faster-moving water can carry a greater load.<br> true or false
Vedmedyk [2.9K]

Answer:

That is false

Explanation:

Just because it moves faster doesn't mean that it can carry and bigger load.

7 0
3 years ago
Read 2 more answers
Please help me. Chemistry
Wewaii [24]

Answer:

element S is argon and element T is potassium.

4. B

5. D

Explanation:

in an element in periodic table number of elctrons and protons are same.

4. since element S has 18 protons so its atomic number must be 18 so the element is Argon which is the last element of period 4 so the next element will go to period 4 with one extra shell and since the atomic number of next element is 19 the element is Potassium. therefore T is Potassium.

5. number of nucleons in an atom is the number of protons and neutons combined together in an nucleus

8 0
4 years ago
What's the answer to this and why? need a answer asap​
ioda

Answer:

Aluminum

Explanation:

Because there's no other element that has this exact electron configuration

4 0
3 years ago
What is the mass of a dolphin swimming at 16 m/s with a momentum of 800 kg m/s?
REY [17]

Answer: 50 kg

Explanation: formula is

m= p/v

m=800 kg m/s : 16m/s

m= 50kg

idk tho hope this helps

8 0
3 years ago
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