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REY [17]
4 years ago
7

Ca+HCI—>CaCI2+H2, what is the reaction?

Chemistry
2 answers:
svetlana [45]4 years ago
8 0

Answer:

It is a displacement reaction

arsen [322]4 years ago
4 0

Answer:

single replacement reaction

Explanation:

This is a kind of single replacement reaction where you switch either cations or anions. Here you switched Ca for H and produced Cacl2 and H2 gas by itself.

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HALP
balu736 [363]

1

Explanation:

This problem deals with balancing of chemical equations.

   Every chemical equations obey the law of conservation of matter which states that "in chemical reactions, matter is usually conserved and are not produced, they are simply recombined".

  Equation of reaction:

      BaO₂   +   H₂SO₄  ⇒  H₂O₂  +  BaSO₄

Let us use a mathematical approach to balance this equation by setting up simple algebraic equations:

        aBaO₂   +   bH₂SO₄  ⇒  cH₂O₂  +  dBaSO₄

a, b, c and d are the number of moles that will balance the equation;

 Conserving Ba:   a = d

                       O:   2a + 4b = 2c + 4d

                        H:    2b = 2c

                         S:    b  = d

now let a = 1

              d = 1

               b = 1

                c  = 1

we see that the equation is already balanced

learn more:

Balanced equation brainly.com/question/5297242

#learnwithBrainly

3 0
3 years ago
Read 2 more answers
Lookup, verify and write down the correct Lewis dot structure for tartaric acid. How many total lone pairs are there in one mole
Hunter-Best [27]
Choose all options that apply. Which of the following measurements are equivalent to six feet? a) 72 inches b) 3 meters c) 182.88 cm O d) 1.25 yards
8 0
2 years ago
) A children’s liquid cold medicine has a density of 1.23 g/mL. If a child is to take 2.5 tsp in a dose, what is the mass in gra
vekshin1

The relation between density and mass and volume is

Density=\frac{Mass}{volume}

the dose required is 2.5 tsp

each tsp contain 5mL

So dose required in mL = 2.5 X 5 = 12.5 mL

the mass will be calculated using following formula

Mass=DensityXvolume

Mass=1.23\frac{g}{mL}X12.5mL= 15.38g

The mass of dose in grams will be 15.38 g


5 0
4 years ago
568 cm3 of chlorine at 25° C will occupy what volume at -25° C while the pressure remains constant?
Vsevolod [243]

Answer:

474.3 cm³

Explanation:

Given data:

Initial volume of chlorine gas = 568 cm³

Initial temperature = 25°C

Final volume = ?

Final temperature =  -25°C

Solution:

Initial temperature = 25°C (25+273 = 297 K)

Final temperature =  -25°C (-25 +273 = 248 K)

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

V₂ = V₁T₂/T₁  

V₂ = 568 cm³ × 248 K /297 K

V₂ = 140864 cm³.K / 297 K

V₂ = 474.3 cm³

6 0
4 years ago
You get a can of soda from the vending machine and your “friend” maliciously shakes it when you’re not looking. You open the can
vaieri [72.5K]
Physical Change because a new substance was not created and if it was a chemical change, a new substance would have to be created.
8 0
4 years ago
Read 2 more answers
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