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dezoksy [38]
3 years ago
15

Blood with a lot of oxygen in it is ___________red a bright b dark

Chemistry
1 answer:
o-na [289]3 years ago
5 0

Answer:

bright red.

Explanation:

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What are the 4 variables that describe a gas
Phantasy [73]
Pressure, volume, temperature, # moles Pressure, volume and temperature, and moles of gas


Hope that helps!!!!
8 0
3 years ago
Question 9 of 10
aksik [14]

Answer:

The answer is B an open system allows energy and mass to move in and out of it

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7 0
2 years ago
If the pressure inside your ballon is 800mmHG ,and the gas is at body temperature,37 degree Celsius , calculate the number of gr
SpyIntel [72]
With all of the information given (pressure, volume, temperature, and the molar mass), we need a formula that relates this all together. The formula we need is the ideal gas law, PV=nRT. Since the pressure is defined in millimeters of mercury, we need the R value that correlates with this, which is 62.4; on top of this, we need the temperature in Kelvin - simply add 273.15 to convert from Celsius. With all of this information, simply plug-and-chug:

PV=nRT
(800)(3.7) = n(62.4)(37 + 273.15)
n = 0.1529 moles

Finally, the problem is asking the amount of air in grams. We have moles, so all we need to do is multiply that value by the molar mass.

0.1529 moles x 29 grams per mole =
4.435 grams of air

The balloon has 4.435 grams of air inside it.

Hope this helps!
6 0
3 years ago
To determine the formula of a new substance, one of the first steps is to find the ____. A. molar mass B. percent composition C.
ycow [4]

The correct option is B.

To determine the formula of a new substance, one has to first determine the percentage composition of each of the elements in the compound. The ratios of each element in the compound will give information about how much of each element is present. The formula of the element will be given based on the quantity of each constituent in the compound.

4 0
3 years ago
Read 2 more answers
The bond between F and Cl would be: pure covalent polar covalent ionic metallic
shusha [124]

Answer:

Polar Covalent

Explanation:

Chlorine and Fluorine are both halogens. They are in group VII.

The Pauling's electronegativity value of these elements are:

F = 4.0

Cl = 3.0

Electronegativity of an element is a property that combines the ability of its atom to lose and gain electrons. It can be used to predict bond type.

For heteronuclear molecules where the electronegativity difference is between 0.5 and 1.7 there will not be an equal sharing of the electron pair between the atoms involved.

The bond that results is a Polar Covalent bond.

When the electronegativity difference is zero or less than 0.5, a non-polar covalent bond forms. There would be an equal sharing of the electron pair donated.

3 0
3 years ago
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