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3 years ago

Devon says that acid in your stomach will make you unhealthy. do you agree or disagree

Chemistry

2 answers:

frosja888 [35]3 years ago

8 0

I will say agree hope this helps

Hatshy [7]3 years ago

4 0

Answer:- Stomach acid plays an important role in our digestive system. It kills the bad bacteria in our stomach and helps in digestion of food.

If there is an excess of the acid in our stomach then it may cause some problems like heartburn, indigestion etc and we feel unhealthy.

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4. Calculate the molar mass of 9.37 x 10-3 mol magnesium (Mg).

Yuri [45]

To calculate moles from grams using chemical formulas ... However, one mole of magnesium weighs 24.31 g. ... 0.873 g x 95.21 g = 9.17 x 10-3 mol MgCl2.

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3 years ago

Given that plist has been defined to be a list of 30 elements, add 5 to its last element.

Kryger [21]

Hi. Your question is quite ambiguous. If the list here follows the periodic table, then I think you are asking for elements 31 to 35. Element 30 is Zinc. This is followed by Gallium (Ga), Germanium (Ge), Arsenic (As), Selenium (Se) and Bromine (Br).

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3 years ago

A sample of an unknown gas effuses in 14.4 min. An equal volume of H2 in the same apparatus under the same conditions effuses in

Elena-2011 [213]

Answer:- molar mass of the unknown gas is 71.5 gram per mol.

Solution:- From Graham's law of effusion rates, the rate of effusion of a gas is inversely proportional to the square root of it's molar mass.

When we compare the effusion rates of two gases then the formula for Graham's law is:

$\frac{rate_1}{rate_2}=\sqrt{\frac{M_2}{M_1}}$

In this formula, V stands for volume and M stands for molar mass

Rate is volume effused per unit time. Since, the volumes are same, the formula could be written as:

$\frac{t_2}{t_1}=\sqrt{\frac{M_2}{M_1}}$

let's say in formula, subscript 1 is for hydrogen gas and 2 is for the unknown gas.

Molar mass of hydrogen is 2.02 grams per mol and the time taken to effuse it is 2.42 min. The time taken to effuse the unknown gas is 14.4 min and we are asked to calculate it's molar mass. let's plug in the values in the formula:

$\frac{14.4}{2.42}=\sqrt{\frac{M_2}{2.02}}$

$5.95=\sqrt{\frac{M_2}{2.02}}$

doing squares to both sides:

$35.4=\frac{M_2}{2.02}$

$M_2=35.4*2.02$

$M_2=71.5$

So, the molar mass of the unknown gas is 71.5 grams per mol.

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3 years ago

Why are mercury venus earth and mars called the terrestrial planets

Daniel [21]

Answer:

The planets Mercury, Venus, Earth, and Mars, are called terrestrial because they have a compact, rocky surface like Earth's terra firma. The terrestrial planets are the four innermost planets in the solar system.

hope to be helpful

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2 years ago

Read 2 more answers

Is the total disappearance of all members of a species.

OLga [1]

Answer: EXTINCTION

Explanation:

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3 years ago