What occurs as the results of a rocks exposure to a chemical?

What occurs as the results of a rocks exposure to a chemical?
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The answer will depend on what the chemical is! A rock exposed to nitrogen, under normal temperature and pressure will be no different from what it would be otherwise!
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Pick out the correct statement. (A) Higher hold up of the solid in the rotary dryer results in better exposure of the solids to the gas (B) The 'Hatta number' is important in problems involving gas absorption without chemical reaction (C) For a non-reacting binary mixture of ideal gases, the partial pressure distribution of both components is linear in the case of steady state equimolal counter-diffusion (D) Total reflux in case of distillation operation requires infinite number of plates for a binary system separation

Description : Pick out the correct statement. (A) Higher hold up of the solid in the rotary dryer results in better exposure of the solids to the gas (B) The 'Hatta number' is ... reflux in case of distillation operation requires infinite number of plates for a binary system separation

Last Answer : (C) For a non-reacting binary mixture of ideal gases, the partial pressure distribution of both components is linear in the case of steady state equimolal counter-diffusion

Chemical weathering occurs when minerals in rocks are changed chemically. Which of these will most likely change the rate of chemical weathering on a rock?

Description : Chemical weathering occurs when minerals in rocks are changed chemically. Which of these will most likely change the rate of chemical weathering on a rock?

Last Answer : rainfall and temperature

I will be describing a chemical element. Try to identify it with the fewest number of clues. This chemical element is a silver-white metal, with bluish tinge, capable of taking a high polish. T element occurs abundantly in all ordinary rocks, except limestone and sandstone; is third in abundance of the elements in the earth's crust and used to make drink cans. The atomic number of this element is 13. Name t element.

Description : I will be describing a chemical element. Try to identify it with the fewest number of clues. This chemical element is a silver-white metal, with bluish tinge, capable of taking a high polish. T element ... crust and used to make drink cans. The atomic number of this element is 13. Name t element.

Last Answer : ANSWER: ALUMINUM

Exposure of plants to high fluoride concentration results in necrosis or chlorosis characteristically in

Description : Exposure of plants to high fluoride concentration results in necrosis or chlorosis characteristically in

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Exposure to small amount of __________ results in high blood pressure & heart disease in human beings. (A) Hydrogen sulphide (B) Mercury (C) Cadmium (D) Asbestos

Description : Exposure to small amount of __________ results in high blood pressure & heart disease in human beings. (A) Hydrogen sulphide (B) Mercury (C) Cadmium (D) Asbestos

Last Answer : (C) Cadmium

Exposure to SO2 containing chimney gases results in the (A) Reduction in strength of leather & cloth (B) Acceleration of corrosion rates of metals (C) Increased drying & hardening time of paints (D) All (A), (B) and (C)

Description : Exposure to SO2 containing chimney gases results in the (A) Reduction in strength of leather & cloth (B) Acceleration of corrosion rates of metals (C) Increased drying & hardening time of paints (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

What happens when cutaneous exposure occurs ?

Description : What happens when cutaneous exposure occurs ?

Last Answer : Cutaneous exposure results in skin lesions.

What happens when gastrointestinal exposure occurs ?

Description : What happens when gastrointestinal exposure occurs ?

Last Answer : Gastrointestinal exposure results in bloody diarrhea, ulcers in ileum or cecum and sepsis and it is very difficult to diagnosis.

In allergic reaction: a. Arthus reaction is a type IV reaction b. anaphylaxis occurs in patients who have had no previous exposure to the offending substance c. contact dermatitis is a type IV reaction d. positive Mantoux test is a type III reaction

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If a person has been exposed to radiation, presenting symptoms, such as nausea, vomiting, loss of appetite, diarrhea, or fatigue can be expected to occur within _______ hours after exposure? a) 48 to 72 The prodromal phase (presenting symptoms) of radiation exposure occurs within 48 to 72 hours after exposure. Signs and symptoms include nausea, vomiting, loss of appetite, diarrhea, and fatigue. With high-dose radiation exposure, the signs and symptoms may include fever, respiratory distress, and increased excitability.

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Last Answer : a) 48 to 72 The prodromal phase (presenting symptoms) of radiation exposure occurs within 48 to 72 hours after exposure. Signs and symptoms include nausea, vomiting, loss of appetite, ... radiation exposure, the signs and symptoms may include fever, respiratory distress, and increased excitability.

The rock that results from solidification of molten lava from a volcano is an example of Which of the following? (1) Igneous rocks (2) Granite Rock (3) Basalt Rock (4) Magnetite

Description : The rock that results from solidification of molten lava from a volcano is an example of Which of the following? (1) Igneous rocks (2) Granite Rock (3) Basalt Rock (4) Magnetite

Last Answer : (1) Igneous rocks Explanation: Igneous rocks are formed through the cooling and solidification of magma (or lava).

A metal ‘X’ acquires a green colour coating on its surface on exposure to air. (i) Identify the metal ‘X’ and name the process responsible for this change. (ii)Name and write chemical formula of the green coating formed on the metal. (iii) List two important methods to prevent the process. -Chemistry

Description : A metal X' acquires a green colour coating on its surface on exposure to air. (i) Identify the metal X' and name the process responsible for this change. (ii)Name and write chemical ... the green coating formed on the metal. (iii) List two important methods to prevent the process. -Chemistry

Last Answer : (i) Metal is copper. The process is corrosion. (ii)Basic copper carbonate [CuCO3.Cu(0H)2]. (iii) • It should be coated with tin • It should be mixed with other metals to form alloys.

What Rock that has no exposure to chemical or mechanical weathering?

Description : What Rock that has no exposure to chemical or mechanical weathering?

Last Answer : What is the answer ?

Maximum allowable noise exposure limits for a man working for 8 hours a day in a noisy chemical plant is about __________ decibels. (A) 20 (B) 60 (C) 90 (D) 120

Description : Maximum allowable noise exposure limits for a man working for 8 hours a day in a noisy chemical plant is about __________ decibels. (A) 20 (B) 60 (C) 90 (D) 120

Last Answer : (C) 90

Attrition is,v A. Process of normal wear of teeth B. Lost of teeth substance as a result of chemical exposure

Description : Attrition is,v A. Process of normal wear of teeth B. Lost of teeth substance as a result of chemical exposure

Last Answer : A. Process of normal wear of teeth

Exposure to mixtures of chemicals are greater than expected on the basis of effects of exposure to each chemical individually. This is known as (1) Additives (2) Antagonism (3) Synergism (4) Independent

Description : Exposure to mixtures of chemicals are greater than expected on the basis of effects of exposure to each chemical individually. This is known as (1) Additives (2) Antagonism (3) Synergism (4) Independent

Last Answer : Synergism

Metamorphism of shale occurs in which of the following rocks

Description : Metamorphism of shale occurs in which of the following rocks

Last Answer : Slate

Explain different types of faults occurs in rocks.

Description : Explain different types of faults occurs in rocks. 

Last Answer : Types of Faults: 1. Normal Faults a. Horst & Graben b. Half- Grabens 2. Reverse Faults a. Thrust Faults b. Overthrust Faults c. Underthrust Faults 3. Strike Fault 4. Dip Fault 5 ... Faults 13. Enechelon Faults 14. Transform Faults 15. Ring Faults 16. Listric Faults 17. Oblique Faults

Which of the following is the element which makes up about 8 percent of the earth's crust and occurs in all rocks except limestone and sandstone? w) sulfur x) aluminum y) sodium z) magnesium

Description : Which of the following is the element which makes up about 8 percent of the earth's crust and occurs in all rocks except limestone and sandstone? w) sulfur x) aluminum y) sodium z) magnesium

Last Answer : ANSWER: X -- ALUMINUM

what are chemical rocks formed by?

Description : what are chemical rocks formed by?

Last Answer : By precipitation or evaporation of saturated solutions.

How do detrial chemical and organic sedimentary rocks differ from each other?

Description : How do detrial chemical and organic sedimentary rocks differ from each other?

Last Answer : Need answer

Metamorphism changes rocks – (1) structure (2) texture (3) both (1) and (2) (4) actual chemical composition

Description : Metamorphism changes rocks – (1) structure (2) texture (3) both (1) and (2) (4) actual chemical composition

Last Answer : (3) both (1) and (2) Explanation: Namcha Barwa, a mountain in the Tibetan Himalaya, is the eastern anchor of the entire Himalayan mountain chain. It is the highest peak of its own ... as the river enters its notable gorge across the Himalaya, emerging as the Dihang and becoming the Brahmaputra.

Spatial variation in horizontal and vertical directions is caused due to: (A) Physical weathering of rocks (B) Chemical weathering of rocks (C) Biological weathering of rocks (D) All of these

Description : Spatial variation in horizontal and vertical directions is caused due to: (A) Physical weathering of rocks (B) Chemical weathering of rocks (C) Biological weathering of rocks (D) All of these

Last Answer : Answer: Option D

Breccia belongs to which type of sedimentary rocks? (A) organic sedimentary (B) chemical sedimentary (C) clastic sedimentary (D) All of them

Description : Breccia belongs to which type of sedimentary rocks? (A) organic sedimentary (B) chemical sedimentary (C) clastic sedimentary (D) All of them 

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Rocks formed in layers are said to be: w) crystalline x) stratified y) chemical z) metamorphosed

Description : Rocks formed in layers are said to be: w) crystalline x) stratified y) chemical z) metamorphosed

Last Answer : ANSWER: X -- STRATIFIED

Chemical weathering of rocks is largely dependent upon: (A) high temperature (B) strong wind action (C) heavy rainfall (D) glaciation

Description : Chemical weathering of rocks is largely dependent upon: (A) high temperature (B) strong wind action (C) heavy rainfall (D) glaciation

Last Answer : (A) high temperature

Water is always involved with landslides. This is because it: (A) reduces the shear strength of rocks (B) increases the weight of the overburden (C) enhances chemical weathering (D) is a universal solvent

Description : Water is always involved with landslides. This is because it: (A) reduces the shear strength of rocks (B) increases the weight of the overburden (C) enhances chemical weathering (D) is a universal solvent

Last Answer : Answer: B  A landslide is a geological phenomenon that includes a wide range of ground movements. Rockfalls, deep failure of slopes and shallow debris flows were common. Landslides can occur in ... , which destabilize the already fragile slopes. 7) vibrations from machinery or traffic. 8) blasting

Metamorphism changes rocks’ (1) structure (2) texture (3) both (1) and (2) (4) actual chemical composition

Description : Metamorphism changes rocks’ (1) structure (2) texture (3) both (1) and (2) (4) actual chemical composition

Last Answer :  both (1) and (2)

Crossing over that results in genetic recombination in higher organisms occurs between

Description : Crossing over that results in genetic recombination in higher organisms occurs between

Last Answer : Crossing over that results in genetic recombination in higher organisms occurs between A. Non- ... bivalents D. Sister chromatids of a bivalents

What disease occurs when there is an abnormal increase in the number of white blood cells which results in fewer red blood cells carrying oxygen to body tissues?

Description : What disease occurs when there is an abnormal increase in the number of white blood cells which results in fewer red blood cells carrying oxygen to body tissues?

Last Answer : Leukemia

All the following statements about endemic goiter are true except (A) It occurs in areas where soil and water have low iodine content (B) It leads to enlargement of thyroid gland (C) It results ultimately in hyperthyroidism (D) It can be prevented by consumption of iodised salt

Description : All the following statements about endemic goiter are true except (A) It occurs in areas where soil and water have low iodine content (B) It leads to enlargement of thyroid gland (C) It results ultimately in hyperthyroidism (D) It can be prevented by consumption of iodised salt

Last Answer : Answer : C

A 65-year old patient has colon carcinoma metastatic to the liver and lungs. He has had a weight loss of 10 kg. Cytokine-dependent tumor cachexia is attributable to which of the following? a. Increased glucose uptake and increased glycogen breakdown occur in this circumstance. b. Suppressed activity of lipoprotein lipase results from TNFa c. TNFa stimulates lipolysis d. The differentiation process of pre-adipocytes is impaired e. Partial reversal of differentiated adipocytes to pre-adipocyte morphology and gene expression occurs

Description : A 65-year old patient has colon carcinoma metastatic to the liver and lungs. He has had a weight loss of 10 kg. Cytokine-dependent tumor cachexia is attributable to which of the ... is impaired e. Partial reversal of differentiated adipocytes to pre-adipocyte morphology and gene expression occurs

Last Answer : Answer: a, b, c, d, e Tumor cachexia appears to be mediated by TNFa. Lipopolysaccharide (LPS), as well as other cytokines, activate a variety of inflammatory cells, most ... chronic syndromes of anorexia, weight loss, and cachexia that are associated with both chronic infection and malignancy

Which of the following types of aneurysms results in bleeding into the layers of the arterial wall? a) Dissecting Dissection results from a rupture in the intimal layer, resulting in bleeding between the intimal and medial layers of the arterial wall. b) Saccular Saccular aneurysms collect blood in the weakened outpouching. c) False In a false aneurysm, the mass is actually a pulsating hematoma. d) Anastomotic An anastomotic aneurysm occurs as a result of infection at arterial suture or graft sites.

Description : Which of the following types of aneurysms results in bleeding into the layers of the arterial wall? a) Dissecting Dissection results from a rupture in the intimal layer, resulting in bleeding ... Anastomotic An anastomotic aneurysm occurs as a result of infection at arterial suture or graft sites.

Last Answer : a) Dissecting Dissection results from a rupture in the intimal layer, resulting in bleeding between the intimal and medial layers of the arterial wall.

Which type of chest configuration is typical of the patient with COPD? a) Barrel chest “Barrel chest” results from fixation of the ribs in the inspiratory position. b) Pigeon chest Pigeon chest results from a displaced sternum. c) Flail chest Flail chest results when the ribs are fractured. d) Funnel chest Funnel chest occurs when there is a depression in the lower portion of the sternum and is associated with Mafan’s syndrome or rickets.

Description : Which type of chest configuration is typical of the patient with COPD? a) Barrel chest Barrel chest results from fixation of the ribs in the inspiratory position. b) Pigeon chest Pigeon chest ... depression in the lower portion of the sternum and is associated with Mafan's syndrome or rickets.

Last Answer : a) Barrel chest “Barrel chest” results from fixation of the ribs in the inspiratory position.

When interpreting the results of a Mantoux test, the nurse explains to the patient that a reaction occurs when the intradermal injection site shows a) redness and induration. The site is inspected for redness and palpated for hardening. b) drainage. Drainage at the site does not indicate a reaction to the tubercle bacillus. c) tissue sloughing. Sloughing of tissue at the site of injection does not indicate a reaction to the tubercle bacillus. d) bruising. Bruising of tissue at the site may occur from the injection, but does not indicate a reaction to the tubercle bacillus.

Description : When interpreting the results of a Mantoux test, the nurse explains to the patient that a reaction occurs when the intradermal injection site shows a) redness and induration. The site is inspected for ... site may occur from the injection, but does not indicate a reaction to the tubercle bacillus.

Last Answer : a) redness and induration. The site is inspected for redness and palpated for hardening.

The addition of any substance to water which leads to change in its physical and chemical characteristics is defined as water pollution. It results in

Description : The addition of any substance to water which leads to change in its physical and chemical characteristics is defined as water pollution. It results in

Last Answer : The addition of any substance to water which leads to change in its physical and ... Increased photosynthesis D. Increased turbidity and deoxygenation

Addition of plasticisers to polymers results in partial neutralisation of intermolecular forces of attraction between the macro-molecules thereby increasing its (A) Tensile strength (B) Chemical resistance (C) Flexibility (D) All (A), (B) & (C)

Description : Addition of plasticisers to polymers results in partial neutralisation of intermolecular forces of attraction between the macro-molecules thereby increasing its (A) Tensile strength (B) Chemical resistance (C) Flexibility (D) All (A), (B) & (C)

Last Answer : (C) Flexibility

An increase in which of the following results in a decrease in the rate of the chemical reaction? (a) temperature (b) concentration (c) collision frequency (d) energy of activation

Description : An increase in which of the following results in a decrease in the rate of the chemical reaction? (a) temperature (b) concentration (c) collision frequency (d) energy of activation

Last Answer : energy of activation