4 years ago

Given the balanced equation representing a reaction:

2 answers:

8 0

Number 4. 1 and 2 are both wrong. Copper is a metal and sulfur is a nonmetal. And when a bond is made, energy is stored.

lord [1]4 years ago

3 0

4 is the right answer. When you form bonds energy is released, however if you were to break bonds energy is being absorbed. This scan be remembered in the simple mnemonic, BARF. Breaking, is Absorbing, Releasing, is Forming

You might be interested in

Noble gases (except for He) have _________ electron(s) in their valence shell. A. 1 B. 2 C. 4 D. 8

Svet_ta [14]

Noble gases having col:18
so the valence shell is D.8

3 0

3 years ago

The chemical properties of an element are determined by which

Vilka [71]

Electron proton neutron

8 0

3 years ago

Read 2 more answers

How is the kinetic energy of the constituent particles of any matter affected by a change in temperature?

SpyIntel [72]

Answer:

Particles in all states of matter are in constant motion and this is very rapid at room temperature. A rise in temperature increases the kinetic energy and speed of particles; it does not weaken the forces between them. ... Individual particles in liquids and gases have no fixed positions and move chaotically.

Explanation:

5 0

3 years ago

What is a star's absolute brightness? <br>pls help

Zanzabum

Answer:

<h3>absolute brightness: The apparent brightness a star would have if it were placed at a standard distance of 10 parsecs from Earth.</h3>

4 0

3 years ago

How does the chemical formula for the sulfite ion differ from the chemical formula for the sulfate ion?

VLD [36.1K]

Answer:

Sulfite contains 3 oxygens and sulfate contains 4 oxygens

Explanation:

6 0

3 years ago