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irinina [24]
4 years ago
10

Science need help now plz wut?

Chemistry
2 answers:
mamaluj [8]4 years ago
8 0

Answer:

The correct answer is A.

igomit [66]4 years ago
3 0

Answer: The answer is A. The mass of the reactants equals the mass of the products.

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makvit [3.9K]
Aloe the plant helps alot leave it on over night
8 0
3 years ago
Read 2 more answers
Body temperature is controlled by a negative feedback control system. the hypothalamus is the ________ for this system.
postnew [5]

Body temperature is controlled by a negative feedback control system.

What is negative feedback?

In biological systems, a type of control known as negative feedback occurs when a process's output lowers its own stimulus. A common regulation mechanism in many biological responses is feedback. The body may regulate numerous aspects of its internal environment by permitting particular routes to be switched on and off. This is like turning a switch. Feedback enables a pathway's output to operate a switch. Negative feedback, often known as a "negative feedback loop," happens when a pathway's end product disables the corresponding metabolic step.

In order to maintain body temperature, the hypothalamus reacts to this information by directing nerve impulses to effectors. For instance, the hair erector muscles tighten up if we get too cold. As a result, a layer of air is trapped near to the skin, raising the skin hairs. Systematic negative feedback regulates body temperature.

<u>Thus the </u><u>hypothalamus</u><u> is the vital organ for this system.</u>

To learn more about negative feedback from the given link below,

brainly.com/question/11525272

#SPJ4

6 0
2 years ago
A scientist thinks she has discovered a new element. She took some samples to her colleagues and they performed some tests. Here
nirvana33 [79]

Answer:

<em><u>Proton number of the supposed discovery debunked the theory.</u></em>

Explanation:

Proton number of an element is also its atomic number.

For the element in question to have had a proton number that wasn't 119, it could not have been a new element.

Furthermore, the characteristics described (proton number especially) describe exactly the Germanium element.

I believe this was helpful.

6 0
4 years ago
What mass of sulfur has to burn to produce 4.5l so2 at 300°c and 101kpa s(s) o2(<br> g. so2(<br> g.?
Mandarinka [93]
S + O2 --> So2. P = 101kPa = 1atm. R = 0.082 atm - L - (mol-K)^-1. Applying ideal gas equation PV = nRT. n = 1x4.5/0.082x573 = 0.096mole. According to stoichiometry, moles of S = moles of SO2 = 0.096mol. Mass of S = moles of So2 x molar Wt = 0.095x32 = 3.04moles. Hope it helps
8 0
3 years ago
An overhead view of two people at the start of a maze. The person in a purple shirt has a line running forward, right, backward,
Lubov Fominskaja [6]

Answer:

Zamir walked

27

meters and Talia walked

19

meters.

Explanation:

27 and 19

8 0
3 years ago
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