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3 years ago

Plss help me pass . I am so confused in chemistry !!

Chemistry

1 answer:

Lapatulllka [165]3 years ago

3 0

Answer:

Explanation:

Ok so an atom is each ball. So in the first one there are 5 balls. In the second one there are 4 and so on. A molecule contains more than two balls. So they are all molecules. For the counting reactants and products, count how many balls are to the left of the arrow which is your number of reactants and count the balls to the right to find the number of product atoms.

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The attraction between positive ions and surrounding mobile electrons forms which type of bond?

Karolina [17]

This is a metallic bond.

I hope this helps.

8 0

2 years ago

PLEASE HELP ME ASAP PLEASE!!!

Sliva [168]

Answer:

$\large \boxed{\text{1763 psi}}$

Explanation:

We can use Dalton's Law of Partial Pressures:

Each gas in a mixture of gases equals its pressure independently of the other gases

$\begin{array}{rcl}p_{\text{NO2}} + p_{\text{CO2}} & = & p_{\text{tot}} \\p_{\text{NO2}} + \text{795 psi} & = &\text{2558 psi} \\p_{\text{NO2}} & = &\text{2558 psi - 795 psi} \\& = & \textbf{1763 psi}\\\end{array}\\\text{The partial pressure of nitrogen dioxide is $\large \boxed{\textbf{1763 psi}}$}$

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3 years ago

Identity each of the following catalysts as

slamgirl [31]

Answer:

Heterogeneous

Explanation:

The catalyst, Pt, is not in the same phase as the reactants, i.e. it is solid, whilst the hydrogen peroxide is aqueous.

5 0

3 years ago

Read 2 more answers

Which has a larger electronegativity?<br> Ge or Pb<br> Ge or Fe<br> Zn or Se

Usimov [2.4K]

1. Ge
2. Fe
3. Zn
Remember, electronegativity decreases down a group (vertically) and increases across a period (horizontally) on the periodic table. :)

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2 years ago

A rock is an example

sveticcg [70]

Answer:

the correct answer is option ( B ) rocks cannot change their volume ,shape, and size

because a solid substance cannot change its, volume, shape and size

Hope it helps you

have a nice day

3 0

2 years ago