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Elena-2011 [213]
3 years ago
14

Name and describe 3 ways to protect the worlds biodiversity

Chemistry
1 answer:
Rainbow [258]3 years ago
4 0
<span>1.Captive breeding: people can capture two organisms from the same species and wait for them to breed. 2.Laws and treaties: the government can make a law how many organisms to kill or not kill an organism in that area. 3.Habitat preservation: people can preserve a area for animals to live and breed. Hope this help :D</span>
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Ionic bonds are formed between metal and nonmetal elements. Potassium has only one valence electron and it is stripped away in t
lbvjy [14]
Refer to the table below. Credits to https://terpconnect.umd.edu/~wbreslyn/chemistry/naming/IonicCharge2.jpg 

Cations with (+ ) charges lose electrons in order to obtain an octet (8 valence electrons) when they ionically bond with another ion.  We're looking for the ions that loses electrons here. So, from the table: 

Al 3+ , S 2- , O 2-, Ag + , Ne ( noble gas, no charge) 

Since Al and Ag has (+) charges, they are going to lose electrons to form ionic bonds with other atoms.

5 0
3 years ago
Read 2 more answers
Calculate the amount of heat energy required to convert 55.0 g of water at 62.5°C to steam at 124.0°C. (Cwater = 4.18 J/g°C; Cst
Grace [21]

Answer:

= 135,647.65 Joules or 135.65 kJ

Explanation:

Heat require to raise the temperature of 55 g water from 62.5°C  to 124.0°C will be calculated in steps;

Step 1; heat required to raise water from 62.5°C to 100 °C

Heat = 55 g × 4.18 J/g°C × (100 -62.5)

        = 8,621.25 Joules

Step 2; Heat required to convert water to steam without change in temperature;

Heat = moles × Molar Latent heat of vaporization.

        = (55g / 18 g/mol)× 4.07 ✕ 104 J/mol

        = 12.436 × 10^4 Joules

Step 3: Heat required to raise the temperature of steam from 100°C to 124 °C.

Heat = mass × specific heat capacity × ΔT

        = 55 g × 2.02 J/g°C × (124-100)

        = 2,666.4 Joules

Therefore; total amount of heat required is;

 = 8,621.25 J + 124360 J + 2,666.4 J

<u> = 135,647.65 Joules or 135.65 kJ</u>

4 0
3 years ago
Which is one way to determine whether a reaction was a chemical reaction or a nuclear reaction?
Roman55 [17]
Answer: check for a change in total mass during a reaction.

According to the law of conservation of mass during a chemical change the total mass of the products remains equal to the total mass of the reactants: there is not change in the total mass.

During nuclear reactions the mass can change due to the huge release of energy which proceeds from mass change, as per the famous equation ΔE =Δm. c^2.
5 0
3 years ago
Read 2 more answers
A(n) __________ eclipse might occur when the Earth, Moon, and Sun are in the positions shown in the picture.
zheka24 [161]

Answer:

The answer is most likely D

3 0
3 years ago
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Which compound has both ionic and covenant bonds
Mashutka [201]

Answer:

Calcium carbonate is another example of a compound with both ionic and covalent bonds.

Explanation:

In chemistry, an ionic compound is a chemical compound composed of ions held together by electrostatic forces termed ionic bonding. The compound is neutral overall, but consists of positively charged ions called cations and negatively charged ions called anions.

7 0
3 years ago
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