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Barium chloride + sodium phosphate 
Answer with double replacement

Answers

Answer 1

Answer:

Answer:

Barium chloride + Sodium phosphate → barium phosphate + sodium chloride

Explanation:

Double replacement:

It is the reaction in which two compound exchange their ions and form new compounds.

AB + CD → AC +BD

Chemical equation:

BaCl₂ + Na₃PO₄ → Ba₃(PO₄)₂ + NaCl

Balanced chemical equation:

3BaCl₂ + 2Na₃PO₄ → Ba₃(PO₄)₂ + 6NaCl

The cation and anion of both reactants are exchanged with each other.

Ba²⁺ react with PO₄³⁻ and form Ba₃(PO₄)₂ while Cl⁻ react with Na⁺ and form sodium chloride.

Molecular equation:

Barium chloride + Sodium phosphate → barium phosphate + sodium chloride

Answer 2

Answer:

Final answer:

A double replacement reaction between barium chloride and sodium phosphate results in the formation of barium phosphate and sodium chloride.

Explanation:

The given chemical equation represents a double replacement reaction. The chemical reactants are barium chloride (BaCl2) and sodium phosphate (Na3PO4). In a double replacement reaction, the cations and anions of the two reactants switch places to form two new compounds.

So here is how the reaction would proceed: BaCl2 + Na3PO4 -> Ba3(PO4)2 + NaCl.

This translates to: Barium chloride reacts with sodium phosphate to form barium phosphate and sodium chloride.

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hydrogen have electronic configuration of 1s¹ to acquire a stable state it can either lose electron and form H+cation or gain an electron( to compete its 1s subshell ) to form H- anion. As it has ±1 valency it is placed neither in group 1(alkaline metals ) nor in group 17 (halogens) .

Which of the following forces causes comets to regularly return to the inner solar system after being gone for many years?A. friction
B. magnetism
C. electromagnetic force
D. gravity

Answers

Answer is D. Gravity

Answer:

✨Gravity✨ hope this helps

Explanation:

(II) To make a secure fit, rivets that are larger than the rivet hole are often used and the rivet is cooled (usually in dry ice) before it is placed in the hole. A steel rivet 1.872cm in diameter is to be placed in a hole 1.870cm in diameter in a metal at 22°C. To what temperature must the rivet be cooled if it is to fit in the hole

Answers

Given:

Rivet diameter, $d_(r)$ = 1.872 cm

Hole diameter, $d_(h)$ = 1.870 cm

Temperature, $T_(2)$ = 22 °C

Formula Used:

$\alpha = (\Delta d)/(d* \Delta T)$

where,

$\alpha$ = coefficient of linear expansion

$\Delta d$ = change in diameter = $d_(h) - d_(r)$

$\Delta T}$ = change in temperature = $T_(2) - T_(1)$

Solution:

we know that coefficient of linear expansion of steel, $\alpha$ = $12* 10^(-6)/^(\circ)C$

Using the above formula :

$\alpha = (\Delta d)/(d* \Delta T)$

$12* 10^(-6)/^(\circ)C$ = \frac{1.870 - 1.872}{1.872\times \T_{2} - T_{1}}[/tex]

$T_(2) - 20/^(\circ)C$ = \frac{1.870 - 1.872}{12\times 10^{-6}}}[/tex]

$T_(2) = -67.03/^(\circ)C$

Therefore, the rivet must be cooled to $-67.03/^(\circ)C$

Final answer:

The question involves the concept of thermal expansion in Physics. By knowing the initial diameter of the rivet and hole, as well as the ambient temperature, we can use the thermal expansion formula to calculate the temperature to which the steel rivet must be cooled to fit into the hole.

Explanation:

The subject in question pertains to Physics and specifically to the concept of thermal expansion. This indicates how objects (in this case, a steel rivet) tend to change in volume or shape as a response to a change in temperature. The diameter of the rivet when cooled will decrease slightly, allowing it to fit into the smaller hole.

To find the temperature to which the rivet needs to be cooled, we require knowledge of the thermal expansion coefficient of steel, which (for generalization) can be averaged to around 0.000012 (1/°C). The formula to calculate the change in diameter (Δd) is:

Δd = α * d * ΔT

where α is the coefficient of linear expansion, d is the original diameter, and ΔT is the change in temperature. Knowing the initial diameter of the rivet and the hole it must fit into, together with the ambient temperature (22°C), we can rearrange this formula to find the cooling temperature needed for the rivet to fit into the hole.

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A solution in which the pH is 1.6 would be described asa.
very acidic
b.
slightly acidic
c.
very basic
d.
slightly basic
e.
neutral

Answers

Answer:

a. very acidic

Explanation:

A solution with a pH of 1.6 would be described as a very acidic solution.

The pH scale is a convenient scale for expressing the level of acidity or alkalinity of aqueous solutions.

The scale ranges from 1 to 14 in which case 1 is the lower limit and 14 the upper limit.

An acidic solution has a pH value less than 7. As pH decreases, the acidity of the solution increases.
Neutral solutions have a pH of 7
An alkaline solution has a pH greater than 7 and the level of alkalinity increases as pH increases.

a chemist encounters an unknown metal. They drop the metal into a graduated cylinder containing water, and find the volume change is 3.2 mL. If the metal weighs 1.5g, what is the density in g/mL of the metal?