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3 years ago

What is the formula for silicon tetrabromide?

Chemistry

2 answers:

Kaylis [27]3 years ago

7 0

Answer:

SiBr4

<em>hope this helps!</em>

bogdanovich [222]3 years ago

5 0

Answer:

SiBr4

Explanation:

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The compound trimethylamine, (CH3)3N, is a weak base when dissolved in water. Write the Kb expression for the weak base equilibr

Rina8888 [55]

<u>Answer:</u> The expression of $K_b$ is written below.

<u>Explanation:</u>

We are given a chemical compound which is trimethylamine that acts as a weak base when dissolved in water.

It accepts a proton from the water to form trimethylammonium ion and hydroxide ion.

The chemical equation for the reaction of trimethylamine in water follows:

$(CH_3)_3N+H_2O\rightleftharpoons (CH_3)_3NH^++OH^-$

The expression of $K_b$ for above equation follows:

$K_b=\frac{[(CH_3)_3NH^+][OH^-]}{[(CH_3)_3N]}$

Hence, the expression of $K_b$ is written above.

5 0

3 years ago

The reaction of nitrogen gas and oxygen gas to form nitrogen monoxide gas is shown below. If the measured concentrations of all

Anettt [7]

Answer:

The forward reaction is occurring at a faster rate than the reverse reaction.

Explanation:

Reaction quotient (Q) of the given reaction is -

$Q=\frac{[NO]^{2}}{[N_{2}][O_{2}]}$

where [NO], $[N_{2}]$ and $[O_{2}]$ represents concentrations of respective species at a certain time.

Here $[N_{2}]$ = 0.80 M, $[O_{2}]$ = 0.050 M and [NO] = 0.10 M

So, $Q=\frac{(0.10)^{2}}{(0.80)\times (0.050)}=2$

Hence $Q> K$

It means that forward reaction is faster than reverse reaction at that point. Because then only concentration of NO is higher than concentrations of $[N_{2}]$ and $[O_{2}]$ which makes Q higher than K.

4 0

3 years ago

2002040_MIJ COMP SCI 1_SEM 1 CR_PY

Slav-nsk [51]

Answer:

a scientific question

Procedure

Conclusion.

Explanation:

Scientific investigation is usually carried out to explain and give answers to natural phenomenon. Now, this scientific investigation is performed through the three main types as described in the question.

With that being said, the most common parts of all types of investigation are :

1. Scientific question: In this stage, questions are usually asked on the basis of observation made which could be answered.

2. Procedure: In this stage, the dimension of the steps are followed to answer and test the scientific question.

3. Conclusion: This is the primary aim that we check when done with our sample values

4 0

3 years ago

What was the weakness of the rutherford model of the atom that bohr addressed?

Charra [1.4K]

The weakness of the rutherford model of the atom that bohr addressed is that

The energy of the atom is quantized and
The atom does not lose energy as the electon rotates about the nucleus

<h3>What is Rutherford model of the atom?</h3>

The Rutherford model of the atom proposed by Ernest Rutherford in 1911 shows that the atom is much hollow space with its mass concentrated at the center being surrounded by electrons. It is the planetary model.

<h3>What is the Bohr model of the atom?</h3>

The Bohr model of the atom proposed by Neils Bohr in 1913 suggests that

the energy of an atom is quantized and
that it does not lose energy as the electron rotates about the nucleus.

<h3>What was the weakness of the rutherford model of the atom that bohr addressed?</h3>

The weakness of the rutherford model of the atom that bohr addressed is that

The energy of the atom is quantized and
The atom does not lose energy as the electon rotates about the nucleus

Learn more about Rutherford model of the atom here:

brainly.com/question/10866484

#SPJ12

5 0

2 years ago

If a reptile temperature gets to low what does it need to do

Dmitry [639]

B. sit in the sun

they are cold blooded so they feel how their skin feels

7 0

3 years ago