Aluminum reacts with oxygen to produce aluminum oxide. If I give Tanya 3.2 grams of aluminum, how many g of oxygen does she need??
Al + O2 ---》 Al203​

Answer:

5

Explanation:

Temperature calculates heat/the temperature in the specific location.

Answer:

compund

Explanation:

i took the quiz

Answer:

the answer to the first is 5.5 meters :)

Answer:

C

Explanation:

Hbr is acidic

NaOH is a base

plus u get a salt from this equation as well as water

thank me later kid

Answer:

1,Iodine solution is used to test leaves for the presence of starch. ...

2.After a few minutes, the parts of the leaf that contain starch turn the iodine from brown to blue/black.

3.The leaf on the left is a variegated leaf

Explanation:

Answer:

1.Iodine solution is used to test leaves for the presence of starch. ...

2.After a few minutes, the parts of the leaf that contain starch turn the iodine from brown to blue/black.

3.The leaf on the left is a variegated leaf.

Answer:

Explanation:

The Urinary System's function is th filter blood and create urine as a waste by-product

Please give brainliest

Answer:

The urinary system's function is to filter blood and create urine as a waste by-product. The organs of the urinary system include the kidneys, renal pelvis, ureters , bladder and urethra.

Answer:

1.44moles

Explanation:

Given parameters:

Number of atoms  = 8.86 x 10²³atoms

Unknown:

Number of moles  = ?

Solution:

From the mole concept;

  Number of moles  = [tex]\frac{number of atoms }{6.02 x 10^{23} }[/tex]  

 Number of atoms  = 8.86 x 10²³atoms

 Number of moles  = [tex]\frac{8.68 x 10^{23} }{6.02 x 10^{23} }[/tex]

 Number of moles  = 1.44moles

Answer: c

Explanation:

Answer:

gas

Explanation:

Answer:

Liquid and gas

Explanation:

Answer:

c

Explanation:

touching a hot piece of metal. because the energy or the hotness of the pot is touching your hand which is a direct contact.

Drew added yeast and sugar to lukewarm water and placed it in a flask. Drew concluded that the bubbles indicated a chemical change. The correct option is B)

A chemical change is a change when the identity of a substance changes, and it converts into a new substance with new characteristics and a new identity.

When iron comes in contact with oxygen, it changes into rust, and it is a chemical change. A chemical change is a transformation in which the substance's chemical composition is altered through atom rearrangement. Atomic alterations cause changes in the molecular structure.

In the reaction, when yeast reacts with lukewarm water it forms bubbles, and in cold water, yeast does not perform well.

Therefore, the correct option is B) the bubbles indicated a chemical change.

To learn more about chemical changes, refer to the link:

https://brainly.com/question/29715141

#SPJ2

Answer:

Isotopes are members of a family of an element that all have the same number of protons but different numbers of neutrons. The number of protons in a nucleus determines the element's atomic number on the Periodic Table

Explanation:

Hope this helps some? :)

m/s is the correct answer of them.

Answer:

D.

Explanation:

Only 0.0035% of the electromagnetic spectrum is visible to the human eye

Hopefully this helped :)

Answer:

8.9x1023

Explanation:

Answer:

0.000000000402000 in scientific notation is  4.02000 × 10-10

Answer: The mole ratio of Zn to ZnO is 3: 3.

Explanation:

According to law of conservation of mass, mass can be neither be created nor be destroyed. The mass on reactant side must be equal to the mass on product side. Thus the atoms of each element on both side of the reaction must be same.

The balanced chemical reaction is:

[tex]3Zn+2MoO_3\rightarrow Mo_2O_3+3ZnO[/tex]

Here 3 moles of Zn combine with 2 moles of [tex]MoO_3[/tex] to give 1 mole of [tex]Mo_2O_3[/tex] and 3 moles of [tex]ZnO[/tex]. Thus the mole ratio of Zn to ZnO is 3: 3.

Answer:

I believe the answer is Xenon since it is a noble gas

Answer:

I think the answer is A

Explanation:

If im wrong the answer is C

herbivore: cow

carnivore: lion

omnivore: bear

decomposer: water mold

Answer:

rabbit, kingfisher,lizard, fungi

Explanation:

hrbivore is an organism which feeds on plants. carnivore is also an organism that feeds on other organism. omnivore is also an organism that feeds on other organisms. Decomposers arsle organisms that recycle nutrients.

Answer:

they gain two electrons

Explanation:

because they gain negativity :)

Answer:

a) 72 °F= 22.22 °C

b)  213.8 °C=  416.84°F

c) 180 °C= 453.15 °K

d) 315 °K=  107.33 °F

e) 1750 °F= 1227.594 °K

f) 0 °K=  -459.67 °F

Explanation:

Para realizar el intercambio de unidades debes tener en cuenta las siguientes conversiones:

Entonces se obtiene:

a) 72 °F= [tex]\frac{72-32}{1.8}[/tex]=22.22 °C

b)  213.8 °C= 213.8*1.8 + 32= 416.84°F

c) 180 °C= 180°C + 273.15= 453.15 °K

d) 315 °K= (315 -273.15)*1.8 + 32= 107.33 °F

e) 1750 °F= [tex]\frac{1750-32}{1.8} + 273.15[/tex]= 1227.594 °K

f) 0 °K= (0 -273.15)*1.8 + 32= -459.67 °F

Answer: c 5 because you don’t start counting until it hits a number >0 if it’s to the left of a decimal

Explanation:

Answer:

When electrons are transferred to or removed from an object.

Explanation:

Because electrons have a negative charge, when they are added to an object, it becomes negatively charged. When electrons are removed from an object, it becomes positively charged.

Answer:

CH2: (1×12g/mol)+(2×1g/mol)=14 g/mol.