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3 years ago

Please help in a test rn so id be greatly appreciated if u answered quickly!!

Chemistry

2 answers:

Hatshy [7]3 years ago

8 0

Answer:

my best guess is B or C. first and last don't make sense. sorry i can't give u a straight answer lol

Explanation:

vladimir1956 [14]3 years ago

5 0

Answer:

Its the second answer.

Explanation:

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According to avagados law the volume of gas will

notka56 [123]

Answer: This law is sometimes referred to as the 'Avogadro's Hypothesis' or 'Avogadro's Principle'. This is an experimnetal gas law that is relating to the volume of gas to the amount of substance of gas that is present to the state. This law also states that ''Equal volumes of all gases, at the same temp. and pressure, have the equal amount of molecules.''.

I hope this helps you and good luck! ☺

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4 years ago

Read 2 more answers

Identify the missing daughter nucleus in the β– emission decay of 106ru below.

kotykmax [81]

Answer is: the missing daughter nucleus is rhodium (Rh).

Nuclear reaction: ¹⁰⁶Ru → ¹⁰⁶Rh + e⁻(electron) + ve(electron antineutrino).

Beta decay is radioactive decay in which a beta ray and a neutrino are emitted from an atomic nucleus.There are two types of beta decay: beta minus and beta plus.

In beta minus decay, neutron is converted to a proton and an electron and an electron antineutrino.
In beta plus decay, a proton is converted to a neutron and positron and an electron neutrino, so mass number does not change.

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3 years ago

If you wanted to make 0.800 Liters of a 0.531 M solution of Nickel(II) chloride, NiCl2, how many grams of NiCIZ

kotegsom [21]

Answer:

54.8g

Explanation:

1. Calculate the number of moles of NiCl₂

a) Identify the known variables

V =0.800 liters
M = 0.531M
n = ?

b) Formula

$M=\dfrac{n}{V}$

c) Clear n

$n=M\times V$

g) Substitute and compute

$n=0.531M/times 0.800liters=0.4248mol$

2. Convert moles to grams

a) molar mass of NiCl₂

129g/mol (shown in the problem)

b) Unit canceling method

Use the factors in order to cancel the units to obtain grams

$0.4248mol\times 129\dfrac{g}{mol}=54.7992g$

Note that the mol unit appears on the numerator and denominator, so it cancels leaving just g (grams).

c) Round to 3 signficant figures

$54.8g$

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4 years ago

An effective collision between reactant particles requires the particles to have the proper what?

Olin [163]

Energy and oreantation its one if not bolth of those

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3 years ago

The density of ethanol, C2H5OH, is 0.789 g/mL. How many milliliters of ethanol are needed to produce 15.0 g of CO2 via a combust

bearhunter [10]

The answer is 9.94 ml.

<h3>What is density?</h3>

Density is a word we use to describe how much space an object or substance takes up (its volume) in relation to the amount of matter in that object or substance (its mass).
Another way to put it is that density is the amount of mass per unit of volume. If an object is heavy and compact, it has a high density.

Given,

The density of ethanol, C2H5OH = 0.789 g/mL

$n (CO_{2} ) = \frac{m}{M} = \frac{15G}{44 g/mol} } = 0.341 mol;$

$n ( C_{2} H_{2} OH) = \frac{n (CO_{2}) }{2} = \frac{0.341}{2} = 0.1705 mol;$

$m (C_{2} H_{2} OH) = 0.1705 mol * 46 g/ mol$ = 7.843 g

$V (C_{2} H_{2} OH ) = \frac{7.843}{0.789} = 9.94 ml.$

Therefore, the answer is 9.94 ml

Learn more about density of ethanol,

brainly.com/question/18597444

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The complete question is -

If the density of ethanol, C2H5OH, is 0.789 g/mL. How many milliliters of ethanol are needed to produce 15.0 g of CO2 according to the following chemical equation?

C2H5OH(l) + 3 O2(g) → 2 CO2(g) + 3 H2O(l)

5 0

2 years ago

Please help in a test rn so id be greatly appreciated if u answered quickly!!​

Please help in a test rn so id be greatly appreciated if u answered quickly!!