Cadmium chloride is a highly soluble compound. The equation for its dissolution is:
CdCl₂(s) → Cd⁺²(aq) + 2Cl⁻(aq)
This dissociation in water allows for the cadmium and chlorine ions to take part in reactions. This is the reason that solutions of chemicals are prepared when a reaction needs to take place.
Answer:
190 mmHg
Explanation:
According to Dalton's law, in a mixture of ideal gases, each gas behaves independently of the other. Also, the total pressure is equal to the sum of the individual partial pressures.
The total pressure of the mixture is 470 mmHg , and the partial pressure of nitrogen is 280 mmHg. Then,
P = pO₂ + pN₂
pO₂ = P - pN₂
pO₂ = 470 mmHg - 280 mmHg
pO₂ = 190 mmHg
Answer:
1. C. take in carbon from the air. The carbon is used to make energy storage
molecules.
2. b Carbon is moving into the air and out of the air at the same time
Explanation:
Question 1:
Trees are plants, which are autotrophic organisms i.e. set of organisms that are capable of producing their own food via a process called PHOTOSYNTHESIS. This photosynthetic process produces sugars (glucose) in the presence of SUNLIGHT. According to this question, the sun has been up for several hours, and has been shining on these trees. This means that the trees can take in carbo dioxide (CO2) in order to perform the process of photosynthesis. Also, the number of energy storage molecules in the trees (ATP) will INCREASE.
What can the trees do because they are in sunlight? What does this mean for the ?
Answer: 49.7 grams of the product will be formed.
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 Liters at STP and contains avogadro's number 
of particles.
To calculate the moles, we use the equation:
Thus 
acts as limiting reagent as it limits the formation of product as potassium is in excess.
According to stoichiometry:
1 mole of reacts to give 2 moles of 
Thus 0.21 moles of will react to give=
moles of
Mass of 
49.7 grams of the product will be formed.
Answer:
The type of allergy test is scratch test.
Explanation:
In a scratch test also called a skin pri c k test or puncture test, an allergy provoking substance placed on the skin is gradually scratched into the skin surface with the aid of a needle or lancet so as to detect bodily reactions to allergens. Some of the types allergens whose reactions are generally tested for include pollen, dust mites, molds and foods.
The scratch test takes about 5 to 10 minutes and it could cause slight pain and the may result in itching feeling at the location where the allergen was introduced.
