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Alex787 [66]
3 years ago
8

1. Heat transfer takes place when:

Chemistry
1 answer:
Flauer [41]3 years ago
7 0

Answer:

A

C

A

Explanation:

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what is the balanced equation for the reaction of solid magnesium metal with oxygen gas to produce solid magnesium oxide
GaryK [48]

Answer:

2Mg + O₂ ⟶ 2MgO

Explanation:

Step 1. Start with the most complicated-looking formula (O₂?).

Put a 1 in front of it.

Mg + 1O₂ ⟶ MgO

Step 2. Balance O.

We have fixed 2 O on the left. We need 2O on the right. Put a 2 in front of MgO.

Mg + 1O₂ ⟶ 2MgO

Step 3. Balance Mg.

We have fixed 2 Mg on the right-hand side. We need 2 Mg atoms on the left. Put a 2 in front of Mg.

2Mg + 1O₂ ⟶ 2MgO

Every formula now has a coefficient. The equation should be balanced. Let’s check.

<u>Atom</u>  <u>On the left</u>  <u>On the righ</u>t

  Mg             2                  2

  O                2                  2

All atoms are balanced.

The balanced equation is

2Mg + O₂ ⟶ 2MgO

4 0
3 years ago
I need help ASAP!!! What type of chemical bond holds Lit and F together in LiF?
Bond [772]

Answer:

The correct answer is a) lonic Bond

Explanation:

Lithium fluoride (LiF) is a salt, formed by an ionic bond between a metal (Li) compound and a nonmetal (F).

4 0
3 years ago
What is the electron configuration of an electrically neutral alkaline earth metal? please explain​
vlabodo [156]

Answer:

The elements in Group 2 (beryllium, magnesium, calcium, strontium, barium, and radium) are called the alkaline earth metals (see Figure below). These elements have two valence electrons, both of which reside in the outermost s sublevel. The general electron configuration of all alkaline earth metals is ns

8 0
3 years ago
Equal volumes of H2 and o2 are placed in a balloon and then ignited. Assuming that the reaction goes to completion, which gas wi
Anastasy [175]
You will have excess O2. The ideal gas law dictates that all other variables kept the same, equal volume means equal number of moles.
7 0
3 years ago
Read 2 more answers
BRAINLIEST IF CORRECT
Airida [17]

Answer:

When water vapor in the air comes into contact with something cool, its molecules slow down and get closer together.

Explanation:

I hate it when you accidently drop your drink haha. Have a good day!!

3 0
3 years ago
Read 2 more answers
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