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3 years ago

What are two diseases that involve the thyroid gland? describe each disease

2 answers:

4 0

Answer: Thyroid disorders can range from a small, harmless goiter (enlarged gland) that needs no treatment to life-threatening cancer. The most common thyroid problems involve abnormal production of thyroid hormones. Too much thyroid hormone results in a condition known as hyperthyroidism.

Explanation:

Sauron [17]3 years ago

4 0

Answer:

Hyperthyroidism and hypothyroidism.

Explanation:

Hyperthyroidism and hypothyroidism are thyroid diseases that affect women the most.

Hyperthyroidism (ICD 10 - E05) is a problem in which the thyroid gland produces excess hormones, which impacts on various body functions. Here the gland is overactive, that is, it works in excess. Hyperthyroidism occurs when the thyroid produces large amounts of these hormones in a short (acute) or long (chronic) period of time.

Hypothyroidism is, in short, a decrease in the production of thyroid hormones - triiodothyronine (T3) and thyroxine (T4). It is the most common disorder of this gland, which is in the neck area and resembles a butterfly. Its performance reverberates throughout the body, interfering in the heartbeat, the rhythm of the intestine, the mood and the menstrual cycle of women. The release of thyroid substances is orchestrated from the pituitary gland, a structure that is there in the brain.

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An ideal gas occupies a volume V at an absolute temperature T. If the volume is halved and the pressure kept constant, what will

Kruka [31]

Answer:

It will be halve of T

Explanation:

V1 = V

T1 = T

V2 = ½V

T2 = x

V1/T1 = V2/T2

V/T = ½V/x

Vx = ½VT

2Vx = VT

2x = T

x = ½T

6 0

3 years ago

A 1.00 g sample of octane (C8H18) is burned in a bomb calorimeter with a heat capacity of 837J∘C that holds 1200. g of water at

lubasha [3.4K]

Answer:

The heat of combustion for 1.00 mol of octane is -5485.7 kJ/mol

Explanation:

Step 1: Data given

Mass of octane = 1.00 grams

Heat capacity of calorimeter = 837 J/°C

Mass of water = 1200 grams

Temperature of water = 25.0°C

Final temperature : 33.2 °C

Step 2: Calculate heat absorbed by the calorimeter

q = c*ΔT

⇒ with c = the heat capacity of the calorimeter = 837 J/°C

⇒ with ΔT = The change of temperature = T2 - T1 = 33.2 - 25.0 : 8.2 °C

q = 837 * 8.2 = 6863.4 J

Step 3: Calculate heat absorbed by the water

q = m*c*ΔT

⇒ m = the mass of the water = 1200 grams

⇒ c = the specific heat of water = 4.184 J/g°C

⇒ ΔT = The change in temperature = T2 - T1 = 33.2 - 25 = 8.2 °C

q = 1200 * 4.184 * 8.2 = 41170.56 J

Step 4: Calculate the total heat

qcalorimeter + qwater = 6863.4 + 41170. 56 = 48033.96 J = 48 kJ

Since this is an exothermic reaction, there is heat released. q is positive but ΔH is negative.

Step 5: Calculate moles of octane

Moles octane = 1.00 gram / 114.23 g/mol

Moles octane = 0.00875 moles

Step 6: Calculate heat combustion for 1.00 mol of octane

ΔH = -48 kJ / 0.00875 moles

ΔH = -5485.7 kJ/mol

The heat of combustion for 1.00 mol of octane is -5485.7 kJ/mol

8 0

2 years ago

Which element consists of positive ions immersed in a “sea” of mobile electrons

worty [1.4K]

Answer:

Explanation:

Nickel is the only metal listed. Metal elements have metallic bonds between the metal atoms. Positive metal ions in a sea of electrons.

4 0

2 years ago

The cube has a mass of 72.9 g. What is its density in g/cm3? What substance is it?

sashaice [31]

If the cube is 3 cm on each side, then it has a volume of 27 cm^3 (3 x 3 x 3). Density is mass divided by volume, so its density is 72.9/27 = 2.7 g/cm^3.

Going by the density, the cube is made of Aluminium - density is a fairly unique quantity

6 0

3 years ago

How does energy travel in a mechanical wave?

nlexa [21]

I think the answer would be medium

7 0

2 years ago

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