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Arlecino [84]
3 years ago
7

What is transferred by all types of waves? A. electrons B. energy C. heat D. matter

Chemistry
2 answers:
saveliy_v [14]3 years ago
6 0
<span>B. energy
hope it helps
</span>
sergey [27]3 years ago
5 0
All types of waves transfer energy from one thing to another. An example of waves are electromagnetic waves which carry electricity or sound waves which carry sound.
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The change in enthalpy is the change in heat energy of a reaction and is calculated by (Hint: Hess' Law): Group of answer choice
Stolb23 [73]

Answer:

d. Sum of product enthalpies minus the sum of reactant enthalpies

Explanation:

The standard enthalpy change of a reaction (ΔH°rxn) can be calculated using the following expression:

ΔH°rxn = ∑n(products) × ΔH°f(products) - ∑n(reactants) × ΔH°f(reactants)

where,

ni are the moles of products and reactants

ΔH°f(i) are the standard enthalpies of formation of products and reactants

8 0
3 years ago
If there is a fire in the laboratory, notify the teacher at once; then prepare to --
geniusboy [140]
Hbshdhsbshs shsbshshs sjsbshsb she’s s
3 0
3 years ago
Two students performed the same experiment separately and each one of them recorded two readings of mass which are given below.
Lapatulllka [165]

Answer:

Hey weirdo what's up?

So you got a question huh?

Lemme answer

As said the correct reading is 3.0grams

And the option A has 3.01 and 2.99 which are very mush precise and accurate to 3.0 gram don't you think?

So the answer is

Option ii the result of students A is both precise and accurate

Loye ya

Peace out

5 0
2 years ago
Read 2 more answers
Which of the following pairs of atoms would exhibit ionic bonding?
LekaFEV [45]
Its strontium and oxygen.
3 0
3 years ago
Read 2 more answers
___au2s3 ___h2 → ___au ___h2s
liberstina [14]
The best way to balance an equation is to balance one atom at a time.
You start with two Au atoms on the left, so you know the coefficient of Au on the right has to be 2. So at first we get,
Au2S3 + H2 --> 2Au + H2S
Then, notice you have 3 sulfur atoms on the left, so you need three on the right.
Our equation becomes
Au2S3 + H2 --> 2Au + 3H2S
Lastly, we now have six hydrogen atoms on the right, and only two on the left, so we assign a three to the H2 on the left
Au2S3 + 3H2 --> 2Au + 3H2S Is the balanced final equation.

7 0
3 years ago
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