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gregori [183]
2 years ago
12

How many moles are in 1.29 x 1024 hydrogen atoms in HF

Chemistry
1 answer:
zepelin [54]2 years ago
7 0

Answer:

No. Moles  = 2.142   mole

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1. Identifying two types of energy<br> 2. Explaining how you know they are there
den301095 [7]

Answer:

Kinetic Energy and Potential Energy

Explanation:

When an object is in motion(ie.moving), it has kinetic energy. Energy stored in an object due to position and state, is called potential energy.

4 0
3 years ago
Give the hybridization shape and bond angle for each carbon in ch3cn
IrinaVladis [17]

Answer:

C-sp, tetrahedral, 180

C-s-p, linear, 180

CH_3-sp3, linear, 109.5

C-sp3, linear, 109.5

C-sp2, tetrahedral, 109.5

CH_3-sp3, tetrahedral, 109.5

CH_3-sp, linear, 180

CH_3-sp2, tetrahedral, 180

Explanation:

8 0
3 years ago
Natural Phenomena that cause climate change<br> (Need at least 2)
Tom [10]

Answer:

1. The Earth's orbit around the Sun is an ellipse, but it does change shape. ...

The tilt in the axis of the Earth is called its obliquity

Explanation:

2.Volcanic eruptions pump out clouds of dust and ash, which block out some sunlight.

7 0
3 years ago
When a cold pack is used, ammonium chloride mixes with water and energy is absorbed from the water to reduce the temperature of
Leto [7]
I think the answer is Endothermic. Since the question says "absorbs," endo means to "go in" sort of and exo means to exit.

exo = exit
endo = enter
(A trick my teacher taught us)

Sorry if I'm wrong, hope I helped. :)
7 0
3 years ago
Read 2 more answers
Identify the type of reaction: 2AgCl + BaBr2 -&gt; 2AgBr + BaCl2
Marta_Voda [28]

Answer:

C

Explanation:

Just look at the reactants.

2AgCl + BaBr2

The first reactant is made of 2 elements.

The second reactant is made of 2 elements.

It can't be a decomposition. At this level there is only one reactant made of 2 elements. Something like

2MgO ===> 2Mg + O2

is a decomposition.  One compound breaking down into 2 elements Mg and O.

It can't be a combustion. One of the reactants in a combustion is oxygen. Those equations look like

C3H8 + 5O2 ==> 3CO2 + 4H2O

That would be what a combustion looks like

It can't be a single replacement. They look like

Mg + CuO ===> Cu + MgO

There are elements on both sides of the reaction.

that leaves a double replacement which I wrote about how you distinguish it.

6 0
2 years ago
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