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madam [21]
3 years ago
5

*ANSWERED*

Chemistry
2 answers:
Oliga [24]3 years ago
4 0

Answer:

-A.

-D.

Explanation:

-It defined the nucleus for the first time. √

-Electrons exist only in energy levels. ×

-Electrons orbit the nucleus. ×

-Electrons exist in any location in the atom. √

----------------------------------------------------------------------------------------------------------------

Physicist Ernest Rutherford envisioned the atom as a miniature solar system, with electrons orbiting around a massive nucleus, and as mostly empty space, with the nucleus occupying only a very small part of the atom. The Rutherford model was devised by the New Zealand-born physicist Ernest Rutherford to describe an atom. Rutherford directed the Geiger–Marsden experiment in 1909, which suggested, upon Rutherford's 1911 analysis, that J. J. Thomson's plum pudding model of the atom was incorrect.

----------------------------------------------------------------------------------------------------------------

Brainliest?

:D

Ty!

Papessa [141]3 years ago
4 0

Answer:

A and D

Explanation:

I am doing this so other guy gets brainliest. He earned it

You might be interested in
METHANOL + ETHANOIC ACID​
Sergio [31]
Answer:

if you’re looking for a balanced equation it would be:

Methanol +ethanoic acid ==> methyl ethanoate + water ( in the presence of concentrated sulfuric acid )

CH3OH + CH3COOH==> CH3COOCH3 + H2O

~~~~~~

But, if you were looking for what it would be called it would be:

ethanoic acid with methanol will produce methyl ethanoate.

~~~~~~

And the reaction between Methanol and Ethanoic acid is known as esterification.

~~~~~~

I wasn’t sure of your question so I answered the best way that I could. I hope this helped!
4 0
3 years ago
The theoretical yield is the amount of product actually produced. <br><br> a. True<br> b. False
jolli1 [7]

Answer:

a. True

Explanation:

Theoretical yield is the amount of product that could be obtained if a chemical reaction has 100% efficiency.

Hope it helps...

6 0
3 years ago
Read 2 more answers
Interpretacao gerais das praticas <br>sobre densidade de amostra solido e liquido<br>​
Savatey [412]

Answer:

O sólido tem densidade mais alta em comparação ao líquido.

Explicação:

A densidade da amostra sólida é maior do que a densidade do líquido porque há pouco espaço entre as partículas do sólido. A densidade tem relação inversa com o volume de uma substância, se uma substância ocupa mais espaço então sua densidade é menor, enquanto se a substância ocupa menos espaço então tem maior densidade. As substâncias sólidas ocupam menos espaço em comparação com as substâncias líquidas, então podemos dizer que a densidade do sólido é maior do que as substâncias líquidas.

6 0
3 years ago
In an experiment on obedience to authority, one subject tells another that the shocks might not be real. Which issue of invalidi
Akimi4 [234]
The answer is c because the subject thinks that they will be shocked when then might not
8 0
3 years ago
Be sure to answer all parts. Consider the reaction A + B → Products From the following data obtained at a certain temperature, d
worty [1.4K]

Answer : The order of reaction with respect to A is, first order reaction.

The order of reaction with respect to B is, zero order reaction.

The overall order of reaction is, first order reaction.  

Explanation :

Rate law is defined as the expression which expresses the rate of the reaction in terms of molar concentration of the reactants with each term raised to the power their stoichiometric coefficient of that reactant in the balanced chemical equation.

For the given chemical equation:

A+B\rightarrow Products

Rate law expression for the reaction:

\text{Rate}=k[A]^a[B]^b

where,

a = order with respect to A

b = order with respect to B

Expression for rate law for first observation:

3.20\times 10^{-1}=k(1.50)^a(1.50)^b ....(1)

Expression for rate law for second observation:

3.20\times 10^{-1}=k(1.50)^a(2.50)^b ....(2)

Expression for rate law for third observation:

6.40\times 10^{-1}=k(3.00)^a(1.50)^b ....(3)

Dividing 1 from 2, we get:

\frac{3.20\times 10^{-1}}{3.20\times 10^{-1}}=\frac{k(1.50)^a(2.50)^b}{k(1.50)^a(1.50)^b}\\\\1=1.66^b\\b=0

Dividing 1 from 3, we get:

\frac{6.40\times 10^{-1}}{3.20\times 10^{-1}}=\frac{k(3.00)^a(1.50)^b}{k(1.50)^a(1.50)^b}\\\\2=2^a\\a=1

Thus, the rate law becomes:

\text{Rate}=k[A]^1[B]^0

\text{Rate}=k[A]

Thus,

The order of reaction with respect to A is, first order reaction.

The order of reaction with respect to B is, zero order reaction.

The overall order of reaction is, first order reaction.

7 0
3 years ago
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