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katrin [286]
3 years ago
9

What is the force needed to accelerate a 25 kg object at 3 m/s²? Formula ( F = m x a)

Chemistry
2 answers:
Mariana [72]3 years ago
6 0

Answer:

I think it is A sorry if wrong

Explanation:

MAVERICK [17]3 years ago
3 0

Answer:

75n

Explanation:

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Write a balanced, net ionic equation for the precipitation reaction of CaCl₂ and Cs₃PO₄ in an aqueous solution. Remember to incl
stealth61 [152]

Answer:

3 Ca²⁺(aq) + 2 PO₄³⁻(aq) ⇄ Ca₃(PO₄)₂(s)

Explanation:

We can write 3 kinds of equations:

  • Molecular equation: includes all species in the molecular form. It is useful to write this one first so balancing is easier.
  • Full ionic equation: includes all ions and species that do not dissociate in water.
  • Net ionic equation: includes only ions that participate in the reaction (<em>not spectator ions</em>) and species that do not dissociate in water.

The reaction between CaCl₂ and Cs₃PO₄ in an aqueous solution is a precipitation (solid Ca₃(PO₄)₂ is formed) and a double displacement one.

<u>Molecular equation</u>

3 CaCl₂(aq) + 2 Cs₃PO₄(aq) ⇄ Ca₃(PO₄)₂(s) + 6 CsCl(aq)

<u>Full ionic equation</u>

3 Ca²⁺(aq) + 6 Cl⁻(aq) + 6 Cs⁺(aq) + 2 PO₄³⁻(aq) ⇄ Ca₃(PO₄)₂(s) + 6 Cs⁺(aq) + 6 Cl⁻(aq)

<u>Net ionic equation</u>

3 Ca²⁺(aq) + 2 PO₄³⁻(aq) ⇄ Ca₃(PO₄)₂(s)

5 0
4 years ago
If you have a density of 3g/meander a mass of 15g what is the volume?
erma4kov [3.2K]
M=D*V,
V=m/D
m=15 g
D=3 g/ml
V=15 g/3 g/ml=5 ml


7 0
3 years ago
Given the balanced equation 4al s 3o2 g which type of chemical reaction is shown
Archy [21]
This is a synthesis reaction. Synthesis reactions are when two elements or simple compounds combine to make a single compound. Here Al and O2 are both elements, so they must perform synthesis.
6 0
3 years ago
Which is the correct lewis structure for barium chloride? which is the correct lewis structure for barium chloride? ..2ba2+[:cl:
wolverine [178]
As Barium belongs to Group II elements (Alkaine Earth Metals), it has two valence electrons in 6 shell, Hence it capable of loosing two electrons and adopting +2 charge as,

                                      Ba    →  Ba⁺²  + 2 e⁻

And Chlorine belongs to Group VII elements (Halogens), it has seven valence electrons in 3rd shell, Hence it is capable of accepting one electron and adopting -1 charge as,

                                       Cl  +  e⁻    →    Cl⁻

Now, for the formation of Barium Chloride we need 2 chloride ions and one Barium cation, as two -1 and one +2 charge can add to form a neutral molecule. Hence,

                                    Ba⁺²  +  2 Cl⁻    →  BaCl₂

8 0
3 years ago
Explain why having a thick, heavy chimney is a better idea than a thin, metal chimney for heating a home all winter long, especi
MA_775_DIABLO [31]

The major idea behind why having a thick, heavy chimney over a thin, metal chimney for heating a home for a longer period is because it retains a lot of heat and this means energy saving, hence it fuel efficient and cost effective

A metal is a good conductor of heat, this property will make it easily give out head that is needed to the surrounding especially at night, therefore a thick chimney especially made from clay material will be a better choice over a thin metal

Learn more:

brainly.com/question/24792291

6 0
3 years ago
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