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stepan [7]
3 years ago
11

Use this equqation for the problem:4Al+3O2 --> 2Al2O3 How many moles of oxygen are needed to completely react with 14.8 mol o

f Al?​
Chemistry
1 answer:
Lesechka [4]3 years ago
7 0

Each mole of butane needs 6.5 moles of oxygen, so 13 moles of oxygen is required for 2 moles of butane in a complete combustion

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1 point
Dafna1 [17]
I’m pretty sure it’s true :))!!
4 0
3 years ago
Which of the following words/phrases correctly describe(s) sugar water? Select all that apply.
Paul [167]

Answer:

Heterogeneous mixture solution

Explanation:

The reason this is Heterogeneous is that you cant see each individual compound in the solution. If this was sand or any compund that is not desolvable or not fully desolved in water would be Homogenous since you can see the individual compounds (water and sand)

6 0
3 years ago
Which of the following is NOT a chemical of life? Mineral, water, nucleic acid, carbohydrate
Alexeev081 [22]

Answer:minerals

Explanation:

4 0
3 years ago
A cation with a +4 charge has 26 neutrons and 18 electrons. What is the identity of the element?
Leya [2.2K]

Answer: Titanium has 22 protons

Explanation:  If an atoms donates 4 electrons, it forms cation with charge +4. So original atom have 22 electrons and because atom is neutral, it has 22 protons. Number of neutrons does not matter, there are more neutrons than protons  in heavier atoms.

3 0
3 years ago
lead is a toxic metal that affects the central nervous system. a pbpb-contaminated water sample contains 0.0013 %pb%pb by mass.
Rus_ich [418]

0.0013% = 0.0013 g/100 ml water, or 1.3 mg/100 ml water

so for 145 mg, you need 145×100/1.3 = 11154 ml water or 11.154 L of water. Lead is a toxic metal that affects the central nervous system.

Extensively talking, the frightened gadget is organized into  essential parts, the central nervous system(CNS) and the peripheral nervous system (PNS). The CNS is the processing center of the frame and includes the mind and the spinal cord. Both of these are protected through 3 layers of membranes referred to as meninges.

The principal anxious gadget is the frame's processing center. The brain controls most of the capabilities of the frame, inclusive of cognizance, movement, thinking, speech, and the five senses of seeing, listening to, feeling, tasting and smelling. The spinal twine is an extension of the mind.

The brain is what controls all the frame's features. The spinal twine runs from the brain down via the again. It carries threadlike nerves that department out to each organ and frame part. This network of nerves relays messages from side to side from the mind to distinctive parts of the body.

Learn more about central nervous system here:- brainly.com/question/2114466

#SPJ4

7 0
2 years ago
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