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vitfil [10]
2 years ago
8

Z forms chloride compounds with the formulae ZCl2 and ZC13.

Chemistry
1 answer:
nordsb [41]2 years ago
3 0

Answer:

(B) II, IV.

hope this answer is helpful for u.

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Huge loops of plasma erupting from the sun are called.
olasank [31]

Answer:

magnetic Flux ropes

Explanation:

Magnetic flux ropes (also known as coronal loops and solar prominences) sit on the surface of the sun, with matter and energy flowing through them, for hours or days.

5 0
2 years ago
PLEASE HELP!!!!! (SCIENCE!!!)
vladimir1956 [14]

large iguanas are affected by el nino temperatures

because algae do not grow as rapidly with el nino temperatures

survival rates for the larger iguanas drop

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4 0
2 years ago
The chemical equation below shows the combustion of methane (CH4).
pishuonlain [190]
According to the chemical equation, the reaction ratio between O2 and CO2 is 2:1, which mean for every 2 moles of O2 reacted there is 1 mole of CO2 formed. 

Use the molar mass and mass of O2 to find out the moles of O2: moles of O2 = mass of O2/molar mass of O2 = 8.94g/32.00g/mol = 0.2794 mole.  Therefore, the moles of CO2 that formed is 0.2794moles/2 = 0.1397 mole

Use the moles and molar mass CO2 to find out the mass of CO2:
Mass of CO2 = moles of CO2 * molar mass of CO2 = 0.1397 mole * .44.01g/mole = 6.15 g.

So the answer is B 6.15g.
3 0
2 years ago
Read 2 more answers
Write the chemichal name of each of the chemichal formula. 1)Pbo2,2)PbO
marishachu [46]

Answer:

Explanation:

1. Lead (IV) Oxide

2. Lead (II) Oxide

4 0
2 years ago
One liter of a solution ph 9 has how many more hydroxide ions (oh-) than 1 l of a solution of ph 4?
NeX [460]
<span>100,000 times more. The rule is that the product of the concentration of (H+) and (OH-) in molars is always 10^-14 (if it is more, they combine and produce simple water which brings the product back down to this number again. If it is less, water molecules will split to bring the product back up to equilibrium).
pH 9 means (H+) is 10^-9 molar. But that means (OH-) is 10^-5 at the same time.
pH 4 means (H+) is 10^-4 molar. But that means (OH-) is 10^-10 at the same time.
10^-5 / 10^-10 = 10^5 or 100,000 times more.</span>
4 0
3 years ago
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