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weqwewe [10]
3 years ago
10

Pls I need help! I need answer and explanation.

Chemistry
1 answer:
gizmo_the_mogwai [7]3 years ago
8 0
Answer: 2LiBr(aq) + F2(g) —> 2LiF + Br2

explanation: Br and F are both nonmetals. Nonmetals should only replace other nonmetals in a single replacement reaction.
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Does anybody know the triple bond?
kkurt [141]

Answer:

a chemical bond in which three pairs of electrons are shared between two atoms

Explanation:

7 0
3 years ago
Provided is a list of five different substances. How many of these substances are elements?.
Lina20 [59]

Answer:

118

Explanation:

Of these 118 elements, 94 occur naturally on Earth. Six of these occur in extreme trace quantities: technetium, atomic number 43; promethium, number 61; astatine, number 85; francium, number 87; neptunium, number 93; and plutonium, number 94.

6 0
2 years ago
KOH (aq) + HNO(little3) (aq) = KNO(little 3) (aq) + H20 (1)
Yuki888 [10]

The reaction already balanced

<h3>Further explanation  </h3>

Equalization of chemical reactions can be done using variables. Steps in equalizing the reaction equation:  

• 1. gives a coefficient on substances involved in the equation of reaction such as a, b, or c, etc.  

• 2. make an equation based on the similarity of the number of atoms where the number of atoms = coefficient × index (subscript) between reactant and product  

• 3. Select the coefficient of the substance with the most complex chemical formula equal to 1  

For gas combustion reaction which is a reaction of hydrocarbons with oxygen produces CO₂ and H₂O (water vapor). can use steps:  

Balancing C, H and the last O  

Reaction

KOH (aq) + HNO₃ (aq) ⇒ KNO₃ (aq) + H₂0 (l)

  • give coefficient

aKOH (aq) + bHNO₃ (aq) ⇒ KNO₃ (aq) + cH₂0 (l)

K : left = a, right = 1⇒a=1

N : left = b, right =1, b=1

H: left = a, right a+b=2c⇒1+1=2c⇒2=2c⇒c=1

KOH (aq) + HNO₃ (aq) ⇒ KNO₃ (aq) + H₂0 (l)⇒ already balanced

5 0
3 years ago
What is the molarity of a solution prepared by diluting 43.72 ml of 1.005 M aqueous K2CR2O7 to 500 ml
UNO [17]

Answer:

43.72

Explanation:

that is the answer hope u liked it and I did this already along time ago

3 0
3 years ago
I need help with this!
Natali [406]

\boxed{ \rm{ \red2Cs + Sr(CrO4) → Cs2(CrO4) + Sr}}

8 0
2 years ago
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