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nataly862011 [7]
3 years ago
10

Provide the element name with a ground-state electron configuration of 1s22s2p4

Chemistry
1 answer:
Reika [66]3 years ago
8 0
Oxygen I’m pretty sure
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Safety.
Ratling [72]

Answer:

because gravitational force effects on wood as compare to paper

8 0
3 years ago
What is the stoichiometric ratio between BaCl2 and NaCl
bixtya [17]
<span>BaCl2+Na2SO4---->BaSO4+2NaCl There is 1.0g of BaCl2 and 1.0g of Na2SO4, which is the limiting reagent? "First convert grams into moles" 1.0g BaCl2 * (1 mol BaCl2 / 208.2g BaCl2) = 4.8 x 10^-3 mol BaCl2 1.0g Na2SO4 * (1 mol Na2SO4 / 142.04g Na2SO4) = 7.0 x 10^-3 mol Na2SO4 (7.0 x 10^-3 mol Na2SO4 / 4.8 x 10^-3 mol BaCl2 ) = 1.5 mol Na2SO4 / mol BaCl2 "From this ratio compare it to the equation, BaCl2+Na2SO4---->BaSO4+2NaCl" The equation shows that for every mol of BaCl2 requires 1 mol of Na2SO4. But we found that there is 1.5 mol of Na2SO4 per mol of BaCl2. Therefore, BaCl2 is the limiting reagent.</span>
7 0
4 years ago
The most powerful respiratory stimulus for breathing in a healthy person is ________. A. pH (alkalosis) B. loss of oxygen in tis
blsea [12.9K]

Answer:

D. increase of carbon dioxide

Explanation:

Breathing is automatic and is controlled subconsciously by respiratory center at base of brain. It continues during the time of the sleep and even when the person is not in conscious. Sensory organs in brain and in aorta and  the carotid arteries monitor blood and sense the oxygen and the carbon dioxide levels. <u>Usually, increased concentration of the carbon dioxide is the strongest stimulus for the breathing to occur more deeply and more frequently.  </u>

When carbon dioxide concentration in the blood is high, the brain increases the frequency and the depth of breaths.

7 0
4 years ago
.......................
salantis [7]

Hi, do you need help on asking a question? Is there something the Brainly community can help you with? Let us know! This can be marked for spam or an improper question, so watch out!

8 0
3 years ago
Find the final equilibrium temperature when 10.0 g of milk at 10. c is added to 1.60 x 10^2g of coffee with a temperature of 90.
IRINA_888 [86]
The concept that can be used in order to answer this item is that of the conservation of heat among the system. We let T be equal to the final temperature. The equation that would allow us to relate the initial and final conditions of both substances is as follows,

     m₁cp₁(T - T₁)  = m₂cp₂(T₂ - T)

The first entity, 1, is the milk and the second entity, 2, is the coffee. We are given that the specific heats of both substances are just equal so we can eliminate them from the equation. Substituting the known values,

   (10 g)(T - 10°) = (1.60 x 10^2 g)(90° - T)

The value of T from the equation is 85.29°C.

Answer: 85.29°C
4 0
3 years ago
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