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kirill115 [55]
3 years ago
7

What would make bromine a group 17 element more similar to a noble gas

Chemistry
2 answers:
NeTakaya3 years ago
7 0
It is the chemiclas that is needed in the chimstry in science class
Dmitriy789 [7]3 years ago
6 0
Bromine has 7 electrons in it's outer shell, if it gains an extra electron it will have a full outer shell making it stable like a noble gas.
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What happens in cellular respiration?
Alecsey [184]
Cellular respiration is the process of oxidizing food molecules, like glucose, to carbon dioxide and water. The energy released is trapped in the form of ATP for use by all the energy-consuming activities of the cell. The process occurs in two phases: glycolysis, the breakdown of glucose to pyruvic acid.
7 0
3 years ago
An electron has an uncertainty in its position of 471 pm .
olya-2409 [2.1K]

<u>Answer:</u>

$\Delta x . \Delta p \geq \frac{h}{4 \pi}$

∆x is the Uncertainty in the position of the particle

∆p is the Uncertainty in the momentum of the particle

$\Delta p=\frac{h}{4 \pi \times m \times \Delta x}$

$=\frac{6.626 \times 10^{-34} \mathrm{kgm}^{2} s^{-1}}{4 \times 3.14 \times 9.109 \times 10^{-31} \mathrm{kg} \times 471 \times 10^{-12} \mathrm{m}}$

$=\frac{6.626 \times 10^{-34} \mathrm{ms}^{-1}}{53887 \times 10^{-43}}$

=1.23\times10^5 ms^{-1} is the answer

3 0
2 years ago
Determine the mass of CO2 formed if 15 grams of C4H10
Svetlanka [38]

Answer:

m_{CO_2}=45gCO_2

Explanation:

Hello there!

In this case, since the combustion of butane is:

C_4H_{10}+\frac{13}{2} O_2\rightarrow 4CO_2+5H_2O

Thus, since the molar mass of butane is 58.12 g/mol and that of carbon dioxide is 44.01 g/mol, we obtain the following mass of CO2 product:

m_{CO_2}=15gC_4H_{10}*\frac{1molC_4H_{10}}{58.12gC_4H_{10}} *\frac{4molCO_2}{1molC_4H_{10}} *\frac{44.01gCO_2}{1molCO_2} \\\\m_{CO_2}=45gCO_2

Best regards!

4 0
3 years ago
Which topic is commonly used to explain activation energy and how chemical reactions happen?
Drupady [299]

collision theory

Explanation:

Collision theory, theory used to predict the rates of chemical reactions, particularly for gases. The collision theory is based on the assumption that for a reaction to occur it is necessary for the reacting species (atoms or molecules) to come together or collide with one another.

6 0
2 years ago
65ml a 6M solution of HCl are needed to neutralize 82ml of NaOH of an unknown molarity.
vodomira [7]

Answer:

A. HCl + NaOH —> NaCl + H2O

B. 4.76M

Explanation:

The equation for the reaction is given below:

HCl + NaOH —> NaCl + H2O

From the equation

nA (mole of the acid) = 1

nB (mole of the base) = 1

The following data were obtained from the question:

Ma = 6M

Va = 65mL

Mb =?

Vb = 82mL

Using MaVa/MbVb = nA/nB, the molarity of the base can be obtained as follows:

MaVa/MbVb = nA/nB

6 x 65/ Mb x 82 = 1

Cross multiply to express in linear form.

Mb x 82 = 6 x 65

Divide both side by 82

Mb = (6 x 65) /82

Mb = 4.76M

The molarity of NaOH is 4.76M

8 0
2 years ago
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