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3 years ago

I need help solving all of these problems help plsss! helpppp

Chemistry

1 answer:

Artist 52 [7]3 years ago

6 0

1) the substances on the left side are the reactants and the substances on the right are the products
2) the coefficients are 6,2,3
The subscripts are 2,3
3) 6 H on the left : 6H on the right
4) 6 Cl on the left : 6 Cl on the right
5) 2 Al on the left : 2 Al on the right
6) The law of conservation of matter says that in chemical reactions, the total mass of the products must equal the total mass of the reactants.

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Please help, and answer as much as you can.

n200080 [17]

Answer:

∴ Fractional distillation is the technique used to separate the fraction

Explanation:

A: Refinery gas

B: Gasoline fraction

C: Naphtha

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2 years ago

A pound of margarine costs $1.39. What is the cost of a kilogram of margarine

den301095 [7]

Answer:

3.064 $

Solution:

First of all we will find the number of pounds contained by one Kg. Therefore, it is found that,

1 Kilogram = 2.20462 Pounds

Hence, as given,

1 Pound of Margarine costs = 1.39 Dollars

So,

2.20462 Pounds Margarine will cost = X Dollars

Solving for X,

X = (2.20462 Pounds × 1.39 Dollars) ÷ 1 Pound

X = 3.064 Dollars

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3 years ago

Anybody can help? - 20 points

strojnjashka [21]

Answer:

I think its carbon because of all the chemicals being used in that air.

7 0

3 years ago

Explain why saltwater is considered a mixture

lutik1710 [3]

Because it is a mix of H2O (water) and NaCl (salt)

3 0

3 years ago

Read 2 more answers

Boron has two naturally-ocurring isotopes. Boron-10 has an abundance of 19.8% and actual mass of 10.013 amu, and boron-11 has an

aniked [119]

Answer:

Average atomic mass = 10.812 amu

Explanation:

The formula for the calculation of the average atomic mass is:

$Average\ atomic\ mass=(\frac {\%\ of\ the\ first\ isotope}{100}\times {Mass\ of\ the\ first\ isotope})+(\frac {\%\ of\ the\ second\ isotope}{100}\times {Mass\ of\ the\ second\ isotope})$