2 years ago

Is it A? NEED HELP ASAP PLEASE

Chemistry

2 answers:

myrzilka [38]2 years ago

6 0

Answer:

yea it is if not then sorry

Explanation:

Vladimir79 [104]2 years ago

6 0

Yes your answer is correct

You might be interested in

How many atoms are in 12 moles of silver?

lord [1]

Answer:

NA=72.264x1023

Explanation:

I got you

7 0

2 years ago

Elena makes the table below to determine the number of atoms of each element in the chemical formula 3(NH4)2SO4

frozen [14]

Answer:

she should not have multiplied the sulfur atoms by the subscript 4

Explanation:

5 0

3 years ago

Read 2 more answers

A metal used in hot water systems

Basile [38]

Answer:

I think this would be iron

Explanation:

5 0

2 years ago

Which sample contains more atoms: 3.89 g of nickel or 6.61 g of silver? defend your answer

Lubov Fominskaja [6]

Nickel contains more atoms.

<u>Explanation:</u>

Number of atoms is determined by the Avogadro number.

1 mole of substance contains 6.022 X 10²³ atoms.

Given:

Mass of Nickel, Ni = 3.89g

Molecular weight of Ni = 58.6934g

Number of moles of Ni = 3.89/58.6934g

Number of atoms of Ni = $\frac{3.89 X 6.022 X 10^2^3}{58.6934}$

Number of atoms of Ni = 0.39 X 10²³

Mass of silver, Ag = 6.61g

Molecular weight of Ag = 107.8682g

Number of moles of Ag = 6.61/107.8682

Number of atoms of Ag = $\frac{6.61 X 6.022 X 10^2^3}{107.8682}$

Number of atoms of Ag = 0.36 X 10²³

Therefore, Nickel contains for atoms.

4 0

2 years ago

The model represents a polynomial and its factors.

zepelin [54]

The equation that is represented by the model is = x²-2x-3=(x − 3)(x + 1).

<h3>What are polynomials?</h3>

Polynomials are defined as the mathematical expression that is made up of variables.and coefficients.

The model is +X-x-x- ,

Which is X -2x ( negative minus negative is plus)

Therefore, the equation that is represented by the model is = x²-2x-3=(x − 3)(x + 1)

Learn more about polynomials here:

brainly.com/question/2833285

#SPJ1

4 0

1 year ago