Answer:
Explanation:
For a chemical reaction, the enthalpy of reaction (ΔHrxn) is … ... to increase the temperature of 1 g of a substance by 1°C; its units are thus J/(g•°C). ... Both Equations 12.3.7 and 12.3.8 are under constant pressure (which ... The specific heat of water is 4.184 J/g °C (Table 12.3.1), so to heat 1 g of water by 1 ..
Data flows can be highly consistent, with periodic peaks, making data loads hard to manage. This feature of big data is called variability.
<u>Answer:</u>
<u>For 2.1:</u> Calcium atom will loose electrons.
<u>For 2.2:</u> It will loose 2 electrons.
<u>For 2.3:</u> Bromine atom will gain electrons.
<u>For 2.4:</u> It will gain 1 electron.
<u>For 2.5:</u> The ions formed are 
<u>For 2.6:</u> The chemical formula is
<u>Explanation:</u>
Calcium bromide is formed by the combination of calcium and bromine atoms. This compound is ionic compound because electrons get transferred from one atom to another atom.
Calcium is the 20th element of the periodic table. It is a metal and it looses its electrons. The electronic configuration for this element is 
This element will loose 2 electrons and forms
ion.
Bromine is the 35th element of the periodic table. It is a non-metal and it gains electrons. The electronic configuration for this element is ![[Ar]4s^23d^{10}4p^5](https://tex.z-dn.net/?f=%5BAr%5D4s%5E23d%5E%7B10%7D4p%5E5)
This element will gain 1 electron and forms
ion.
The chemical formula for the given compound is 
Answer:
50 mg
Explanation:
First, we have to calculate the partial pressure of O₂ (pO₂) using the following expression.
pO₂ = P × X(O₂) = 1.13 atm × 0.21 = 0.24 atm
where,
P: total pressure
X(O₂): mole fraction of oxygen
Then, we can calculate the concentration of O₂ in water (C) using Henry's law.
C = k × pO₂ = (1.3 × 10⁻³ M/atm) × 0.24 atm = 3.1 × 10⁻⁴ M
where,
k: Henry's constant for O₂
The mass of oxygen in a 5.00 L bucket with a concentration of 3.1 × 10⁻⁴ M is: (MM 32.0 g/mol)
