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svetoff [14.1K]
3 years ago
7

Which is the correctly balanced equation for the reaction of rust, Fe2O3, and hydrochloric acid, HCl?

Biology
2 answers:
mixas84 [53]3 years ago
6 0
The answer would be the 3rd one!!
Natalka [10]3 years ago
4 0
Fe2O3 + 6HCl -> 2FeCl3 + 3 H2O

If you count the number of each elements on both sides, they are equal. If you need me to explain this better, let me know and I would be glad to help
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PLZ help ASAP!!!!!!!<br> WILL MARK BRAINLIEST FOR ONLY THE CORRECT ANSWER
Nadya [2.5K]

Answer:

DNA or RNA: Nucleic acid

Starches and sugars: Carbohydrates

Antibodies: Proteins

Can be utilized for energy if sugars are not available: Lipids

Hydrophobic part of the plasma membrane: Lipids

Glucose and sucrose: Carbohydrates

Explanation:

The DNA or RNA can be described as molecules made up of nucleic acids.

Carbohydrates can be described as biological molecules made up of carbon, hydrogen and oxygen. For example, starches, sugars, glucose, sucrose etc

Antibodies can be describe as a type of proteins which provide the body with immunity.

Lipids or fats are the alternative source of energy if carbohydrates are not present.

The hydrophobic tail of the plasma membrane is made up of fatty acid molecules which are lipids.

5 0
3 years ago
Describe the neural and renal mechanisms that control blood pressure.
Andrei [34K]

Answer:

The autonomic nervous system is the main neural regulator of circulation and blood pressure in the short term and beat by beat and exerts its function through various reflexes that regulate vasomotor tone, heart rate and cardiac output. At the renal level, the renin–angiotensin–aldosterone system is possibly the most important in the maintenance of arterial homeostasis.

Explanation:

Blood pressure is regulated by a series of interrelated autonomic systems and humoral reflexes, which continually adjust the determining elements of the system (heart rate, stroke volume, total peripheral resistance and circulating volume).The effective circulating volume is controlled by a series of reflex systems, which obtain information about the perfusion pressure (baroreceptors in the carotid bulb and aortic arch), plasma osmolarity (hypothalamus) and urinary sodium (distal tubule).The kidney has its own self-regulatory mechanisms. The reduction in renal blood flow is detected at the level of the mesangial cells of the juxtaglomerular apparatus, starting the renin-angiotensin system. The increase in angiotensin II produces on the one hand local vasoconstriction, and on the other hand stimulates the production of aldosterone by the adrenal cortex with the consequent tubular reabsorption of sodium and water.Antidiuretic hormone or vasopressin (released from the hypothalamus by stimulation of arterial baroreceptors and also by stimulation of angiotensin II) also acts at the renal level, which acts as a powerful and water-saving vasoconstrictor in the distal tubule.

5 0
3 years ago
If an organism is diploid and a certain gene found in the organism has 18 known alleles (variants), then any given organism of t
laiz [17]

Answer:cat

Explanation:

8 0
4 years ago
What season is the northern hemisphere experiencing
Stells [14]
In the Northern Hemisphere, winter generally begins on December 21 or 22. This is the winter solstice, the day of the year with the shortest period of daylight. Summer begins on June 20 or 21, the summer solstice, which has the most daylight of any day in the year. Spring and fall, or autumn, begin on equinoxes, days that have equal amounts of daylight and darkness. The vernal, or spring, equinox falls on March 20 or 21, and the autumnal equinox is on September 22 or 23.
4 0
3 years ago
In your own words, what is the definition for Osmotic pressure?
ANTONII [103]

I love this topic

Answer:

Osmotic pressure is defined as the pressure that must be applied to the solution side to stop fluid movement when a semipermeable membrane separates a solution from pure water.

5 0
3 years ago
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