Answer:
Single-Replacement Reaction
General Formulas and Concepts:
<u>Chemistry - Reactions</u>
- Synthesis Reactions: A + B → AB
- Decomposition Reactions: AB → A + B
- Single-Replacement Reactions: A + BC → AB + C
- Double-Replacement Reactions: AB + CD → AD + BC
Explanation:
<u>Step 1: Define RxN</u>
Mg + H₂SO₄ → MgSO₄ + H₂
<u>Step 2: Identify RxN</u>
Mg + H₂SO₄ → MgSO₄ + H₂
Single-Replacement Reaction A + BC → AB + C
- A = Mg
- BC = H₂SO₄
- AB = MgSO₄
- C = H₂
Answer: Option (d) is the correct answer.
Explanation:
The given reaction will be as follows.
In the ionic form, the equation will be as follows.
........ (1)
............ (2)
Hence, for the net ionic equation we need to add both equation (1) and (2). Therefore, the net ionic equation will be as follows.
Now, balancing the atoms on both the sides we get the net ionic equation as follows.
Answer:
B.) 33.5 mL
Explanation:
The density measurement can be used as a conversion. It allows you to go between grams and mL. When you say the density of mercury is 13.6 g/mL, you are technically saying that there are 13.6 grams of mercury per every 1 mL. So, if you want to convert between grams and mL, you need to multiply the staring amount by this conversion. Because you want to cancel out grams, you need to put this unit in the denominator of the ratio.
455 grams mercury 1 mL
------------------------------ x -------------------- = 33.5 mL mercury
13.6 grams
<span>Composers or consumers eat the
by-product of plants in order to get proper nourishment and development. Their
waste excretions are in the soil which nourishes it. This is also used by the
plants as producers in order to produce more food for the consumers. When
consumers die, they become food for the decomposers such as worms, fungi, bugs,
and ants so consumers help them to thrive. In the process, the soil becomes
nourished of the mineral breakdowns from the body of the consumers, this is
again used by producers to provide healthy and nourished foods.</span>
