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3 years ago

M = 50 kg

Chemistry

1 answer:

Hatshy [7]3 years ago

5 0

Answer:

<h3>The answer is option A</h3>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

$a = \frac{f}{m} \\$

where

f is the force

m is the mass

a is the acceleration

From the question

f = 150 N

m = 50 kg

We have

$a = \frac{150}{50} = \frac{15}{5} \\$

We have the final answer as

Hope this helps you

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1. Which of the following is a combination reaction?

DaniilM [7]

Answer:

The answer to your question is: letter A

Explanation:

A combination reaction is when there are two reactants that gives only one product.

a. 2SO2 + O2—> 2SO3 This is a combination reaction,

2 reactants gives one product.

b. Zn + Cu(NO3)2–>Zn(NO3)2 + Cu This is not a combination reaction,

it's a single replacement reaction.

c. 2H2O2–> 2H2O+O2 This is a decomposition reaction

d. AgNO3 + NaCl → AgCl+NaNO3 THis is a double replacement reaction.

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3 years ago

A 0.100 M solution of bromoacetic acid (BrCH2COOH) is 13.2% ionized. Calculate [H+]? Calculate BrCH2COO^ - ? Calculate BrCH2COOH

Natali [406]

<u>Answer:</u> The concentration of hydrogen ion and bromoacetate ion is 0.0132 M and 0.0132 M resepectively and that of bromoacetic acid is 0.0868 M

<u>Explanation:</u>

We are given:

Molarity of bromoacetic acid = 0.100 M

Percent of ionization = 13.2 %

The chemical equation for the ionization of bromoacetic acid follows:

$BrCH_2COOH\rightarrow BrCH_2COO^-+H^+$

1 mole of bromoacetic acid produces 1 mole of bromoacetate ion and 1 mole of hydrogen ion

Molarity of hydrogen ion = 13.2 % of 0.100 = $\frac{13.2}{100}\times 0.100=0.0132M$

Molarity of bromoacetate ion = molarity of hydrogen ion = 0.0132 M

Molarity of bromoacetic acid = Molarity of solution - Molarity of ionized substance

Molarity of bromoacetic acid = 0.100 - 0.0132 = 0.0868 M

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3 years ago

23. What are the correct formulas and coefficients for the products of the following double replacement reaction? Al(OH)3 + H3PO

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24. a, combination reaction. There are two reactants and one product.

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3 years ago

Write the empirical formula of a list for binary ionic compounds that could be formed from the following ions

klasskru [66]

Answer:

CaBr₂, CaO, FeBr₂, FeO

Explanation:

Per binary compound, there must be 1 cation (Ca²⁺, Fe²⁺) and 1 anion (Br⁻, O²⁻). The compound should have a charge of 0 (neutral). For this to occur, there sometimes needs to be more than one cation/anion present in the compound. Below I have included the math that displays why there are more ions necessary in some compounds.

CaBr₂

-----> Ca = +2 and Br = -1

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CaO

-----> Ca = +2 and O = -2

-----> +2 + (-2) = 0

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2 years ago

In the hypothetical reaction below, substance A is consumed at a rate of 2.0 mol/L·s. If this reaction is at dynamic equilibrium

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Answer : The correct answer for rate of consumption of B = $2.0 \frac{mol}{L*s}$

Dynamic equilibrium :

Dynamic equilibrium is state of equilibrium where reactants convert to product and product converts to reactant at equal and constant rate . The concentration may not be same but rate will be same .

This occurs when reaction is reversible type .

The hypothetical reaction is :

A ↔ B where ↔ represents reversible reaction

Rate of consumption of A is given as :

$R(a) = k * \frac{d[A]}{dt}$

Where . R(a) = rate of consumption of A

k = rate constant

[A] = concentration of A

t= time

Rate for consumption of B =

$R (b)= k * \frac{d[B]}{dt}$

R(b) = rate of consumption of B , [B] is concentration of B

Since the reaction is at dynamic equilibrium , so :

Rate of consumption of A = rate of consumption of B

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Hence rate of consumption of B = $2.0 \frac{mol}{L*s}$

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3 years ago

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