Please help due today!

Answer:

1. 636miles/hour

2. 53.65milesper hour

3.696miles per hour

4.37.09mikes per hour

5. 6.99miles/hour

Explanation:

you first convert all the time into improper fractions

then work out speed which is got by dividing distance with time

Option C. Aluminum atoms lose electrons to oxygen atoms.

Answer:

C. Aluminum atoms lose electrons to oxygen atoms.

How I Know :

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Naming Ionic compounds with transition metals requires the use of a roman numeral. The charge of the metal ion must be written in the name of the compound with a roman numeral. This is because transition metals can have more than one valence (or charge).

Answer:

V₂ = 236.84 mL

Explanation:

The relation between pressure and volume is inverse.

We can write it as follows :

[tex]P_1V_1=P_2V_2[/tex]

We have,

P₁ = 360 torrs, V₁ = 750 mL, P₂ = 1.5 atm = 1140 torr.

So,

[tex]V_2=\dfrac{P_1V_1}{P_2}\\\\V_2=\dfrac{360\times 750}{1140}\\\\V_2=236.84\ mL[/tex]

So, the new volume of the gas is 236.84 mL.

Answer:

2hours

Explanation:

40miles=1hr

80miles=80÷40=2

2hours

Answer:

It has a high frequency

Explanation:

Answer:

Sorry I don't know the answer of your question I am sorry.

Answer:

Catalyst, in chemistry, any substance that increases the rate of a reaction without itself being consumed.

...

Catalyst.

process catalyst

ammonia synthesis iron

sulfuric acid manufacture nitrogen(II) oxide, platinum

cracking of petroleum zeolites

Answer:

1 is correct and 2 is liquid

Explanation:

Answer:

Answer:

4

Explanation:

hope this helps, can i have brainliest

Answer:

A molecule of Nacl

Maybe

Answer:

Explanation:

c

Answer:

The answer I would go with is A formation of a new substance.

Explanation:

This is because physical change includes changes of state. Some could be changing from a liquid to gas or solid to gas. B is not even an answer that should be considered because it doesn't fit into the category. C and D represents some of the examples of the process of physical change. Like boiling, bubbling, melting, or freezing. So the best would be A.

Answer:

option D is correct answer of this question

option D is correct answer of this questionbecause the rainforest environment is different than the desert environment

option D is correct answer of this questionbecause the rainforest environment is different than the desert environment hope it will help

The reason of why rainforest plants adapted to be a different shape  as compared to the desert plants is because of option d. as the rainforest environment is different than the desert environment.

It can be like:

hence,  The reason of why rainforest plants adapted to be a different shape as compared to the desert plants is because of option d. as the rainforest environment is different than the desert environment.

learn more about  rainforest plants here: https://brainly.com/question/2170925?referrer=searchResults

Answer:

If youre talking about biology its source of energy that is storage in the cellular level.

Explanation:

first find the atomic weight of CH3 which would be

atomic weight: 12.011 (3×1.008) = 36.32 g/mol

then find the moles in the given mass

36.32 ÷ 45.7 = 0.794

I HOPE I'M NOT WRONG I HAVENT DONE CHEM IN SO LONG

Answer:

d, e and a

Explanation:

I hope you get it right

Answer:

10 moles de NO2

Explanation:

Tenemos la ecuación de la reacción como sigue;

 N2 (g) + 2 O2 (g) → 2 NO2 (g)

Asi que;

Si 1 mol de nitrógeno produce 2 moles de NO2

5 moles de nitrógeno producirán 5 * 2/1 = 10

Por tanto, se producen 10 moles de NO2 moles

I think its mass of volume

Answer:

2 NaF + Br2 --> 2NaBr + F2

Explanation:

Well first I notice that there are two flourines on the products side so we need to put a 2 of NaF. Now there are 2 sodiums on the products side so we have to put another two in front of NaBr.

2 NaF + Br2 --> 2NaBr + F2

Answer:

HI is least polar

Explanation:

Answer:

1 month i believe sorry if im wrong

Explanation:

Answer:

that isn't a full equation but I will assume this is = to 0

that makes x 30.95

Explanation:

Answer:

C. A one (1) is assumed when there is no coefficient

Explanation:

The following chemical equation is given in the attachment:

2H2 + O2 → 2H2O

In this reaction, Hydrogen (H2) and oxygen (O2) gases are the reactants and they combine to form H2O, which is the product. It is necessary that, in accordance to the law of conservation of matter, the same number of atoms of each elements on the reactant side equates that on the product side. When this happens, the equation is said to be BALANCED.

However, to balance an equation, COEFFICIENTS are used. In this equation above, coefficients 2 is used in front of both H2 and H2O but no coefficient is used in front of O2. This is because 1 mole of oxygen is on the reactant and product side respectively. However, one is assumed when no coefficient is written i.e. O2 means 1 mole of oxygen molecule.