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NNADVOKAT [17]
3 years ago
13

• Reaction rate increased by an increase of surface area of a

Chemistry
1 answer:
RoseWind [281]3 years ago
4 0

Answer:

B

Explanation:

Crush solid reactant into smaller pieces.

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Two descriptions about physical quantities are given below:
gladu [14]

Answer:

Quantity A is weight and Quantity B is mass

Explanation: weight has same unit as force. Mass is the quantity of matter present in a body or object

8 0
3 years ago
Read 2 more answers
Consider the following data for five hypothetical elements: Q, W, X, Y, and Z. Rank the elements from most reactive to least rea
Natalka [10]

Answer:

Y, Q, W, Z and X

Y > Q > W > Z > X

Explanation:

To know the most reactive element, the element will be able to displace other metal in it compound. We also have to observe if the reaction occur. If the reaction didn't occur, that means the element is not reactive than the metal found in the other reactant. Invariably their will be no displacement.

Q + w+ Reaction occurs

Q element displace the metal w in it compound . This means Q is more reactive.

x +z+ No reaction

No reaction here. This means x is less reactive than z as it couldn't displace z in it compound.

w + z+ Reaction occurs

w is more reactive than z as it displaces z in it compound.

Q+ + Y Reaction occurs

Y is more reactive than Q as it displaces Q in it compounds.

Therefore, the most reactive to the least reactive is arrange as follows.

Y, Q, W, Z and X

8 0
3 years ago
Better alternatives to nuclear power plants
AfilCa [17]
It also depends on what we use to make the energy in the power plants. Many use uranium which is non renewable. A better alternative would be wind or solar as it is always around. Hope this helps. 
7 0
3 years ago
KOH+H 3 PO 4 K3PO4+ H₂O<br> How to solve and answer to this question
sergij07 [2.7K]

Answer:

hmmmm

Explanation: Balance the reaction of KOH + H3PO4 = K3PO4 + H2O using this chemical equation balancer!

4 0
3 years ago
What is the mass of 3.00 moles of magnesium chloride, MgCl2? Express your answer with the appropriate units.
Tresset [83]
To answer this question you need to know how to calculate the molecular weight of a molecule. The compound is having 1 Mg atom and 2 Cl atom, thus the molecular weight should be: 
24.305+ 2*35.453= <span>95.211 gram/mol.

Then, the mass of 3 mol of MgCl would be:
3 mol * 95.211 gram/mol= 285.633 gram</span>
7 0
3 years ago
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