CHEMISTRY HIGH SCHOOL

Which of the following would most likely result in an increase in reaction rate? placing the reactants on a hotplate placing the reactants in an ice bath
placing the products in an ice bath

Answers

Answer 1
Answer:

Answer:

placing the reactants on a hot plate

Explanation:

If the temperature goes up, the reaction rate will increase. Because the particle will move faster and makes the kinetic energy larger.

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Which compound has the strongest hydrogen bonding between its molecules? 1. HBr 2. HF 3. HCl 4. HI

A student investigated the rate of reaction between sodium thiosulphate and dilute hydrochloric acid the student placed a conical flask over a cross on a piece of paper
the student mixed the solutions in the flask
the solution went cloudy
the student timed how long it took until the cross could not be seen
the equation for the reaction is :
Na2 S2O3(aq) + 2HCl(aq) = 2NaCl(aq) + H2O(l) + SO2(g) + S(s)
explain why the solution goes cloudy

Answers

Na₂ S₂O₃ ( aq ) + 2HCl ( aq ) = 2NaCl ( aq ) + H₂O ( l ) + SO₂ ( g ) + S ( s ) this solution goes cloudy because the student placed a conical flask over a cross on a piece of paper.

What is rate of reaction ?

The speed at which a chemical reaction occurs is known as the reaction rate or rate of reaction. It is proportional to the rise in product concentration per unit time and the fall in reactant concentration per unit time. Reaction times might differ significantly.

The norm is to write reactant or product]to indicate the concentration of any reactant or product, respectively. Therefore, A's concentration may be represented as A, and B's concentration as [B]. Assume that the reaction starts at time t =0 , which is the start time.

Regarding Hcl, the reaction rate is zero-order. To get rid of the sulfur, empty the beakers and give them a good cleaning with paper towels.

Sulphur dioxide, sodium chloride, sulphur, and water are the products of the reaction between sodium thiosulphate and diluted hydrochloric acid. Sulfur dioxide is a gas with the capacity to entirely dissolve in aqueous solutions.

Thus, option A is correct.

To learn more about rate of reaction follow the link below;

brainly.com/question/13440548

#SPJ2
You are forming a Sulfur precipitate in the solution which is likely why it goes cloudy. 

How are sound energy and light energy similar?A.
They are both carried from place to place by particles.
B.
They are both kinds of mechanical energy.
C.
They both need a medium to travel through.
D.
They both have a wavelength and a frequency.
Explanation

Answers

D.

HOPE THIS WILL HELP U
D. They both take the form of a wave and have frequency :)

The temperature at the point of intercept of the plotted data with the Temperature axis is:600°C
-273°C
-160°C
50°C

Answers

Answer: The temperature at the point of intercept is -273°C.

Explanation: Intercept is a point on a graph which crosses the x and y axes.

Here, The X-axis represents Temperature in °C and Y-axis represents the Volume in mL.

On X-axis, the major division is 100 and minor division is 10. The slope intercepts the X-axis at third minor division from the origin. Hence, the temperature of intercept corresponds to -273°C.
An axis is a line of numbers in a graph. The intercept is where a line of data and axis intersect, which if you look at the purple line and the temp. axis, is around -273 C.

Help! answer 7 & 9 please.​

Answers

Answer:

7 : I think it is because heat rises, and to make the hot air balloon ride is the fire torch inside it.

Explanation:

I donno 9

Which of the following particles has almost no mass? proton neutron electron

Answers

Answer: Electron has almost no mass.

Explanation:

Mass is defined as the actual matter that is contained in a substance. At an atomic level, it is expressed in atomic mass units.

The given options are the 3 subatomic particles.

Mass of the given subatomic particles are:

Proton = 1.007276u

Neutron = 1.008664u

Electron = 0.0005485u

Mass of neutron is slightly more than the mass of proton.

From the above information, it is visible that electron has a negligible mass.

Hence, the correct answer is electron.

Answer:

Electron has almost no mass.

Explanation:

How many grams are in 2.3 x 10^-4 moles of Ca3(PO4)2

Answers

Molar mass 

Ca₃(PO₄)₂ = 310 g/mol

1 mole -------------------> 310 g
2.3x10⁻⁴ mole ---------> ?

m = 2.3x10⁻⁴ * 310 / 1

m = 0.0713 g 

hope this helps!
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