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blondinia [14]
3 years ago
12

Which 4 items are changes in hazard communication standard for chemical labels and sds

Chemistry
1 answer:
melomori [17]3 years ago
7 0

Explanation:

<h2>Bukas nalang ung sagot hah!! </h2>
You might be interested in
A K atom differs from a K+ ion in that the K atom has one...
maks197457 [2]

Answer:

4)less electron

Explanation:

A K+ ion still has the same nuclus but due to a loss of an electron which is negativly charged the K atom becomes a K+ ion.

3 0
3 years ago
Select the term that matches each definition:
Zinaida [17]

Answer:

a) common ion effect

b) solubility

c) saturated solution

d) solubility product constant

e) molar solubility

Explanation:

When a substance, say BA2 is dissolved in a solution and another substance CA2 is dissolved in the same solution. The solubility of BA2 is decreased due to the addition of CA2. This is known as common ion effect.

The mass of a substance that will dissolve in a given Volume of solvent is known as it's solubility.

The molar solubility is the amount of moles of solvent that dissolves in 1 dm^3 of solvent.

A solution that contains just as much solute as it can normally hold at a given temperature is known as a saturated solution.

Lastly, the product of molar solubilites raised to the power of the molar coefficient is know as the solubility product constant.

6 0
4 years ago
How many σ and π bonds are in this molecule? A chain of five carbon atoms. There is a double bond between the first and second c
kati45 [8]

Answer:

Sigma bonds: 10

Pi bonds: 4

Explanation:

The compound described must be CH2=CH-CO-CH≡CH. If we look at the compound closely, we will notice that there are 10 sigma bonds and 4 pi bonds.

There are three pi bonds between carbon atoms and one pi bond between a carbon and an oxygen atom (C=O). All these can easily be seen in the structure of the formula chosen in this answer.

5 0
4 years ago
How many grams of hydrogen gas, H, are necessary to produce 119.0 g of ammonia, NH3?
Pepsi [2]

Answer:

What's the equation?

3 0
3 years ago
Read 2 more answers
How many moles of water are produced from 19.2 g of B2H6
lbvjy [14]
The Balanced chemical equation of reaction of Borane with oxygen is as follow,
                                  B₂H₆ + 3O₂ -----> 2HBO₂ + 2H₂O
According to this equation 27.66 g (1 mole) of B₂H₆ reacts with oxygen to produce 36 g (2 moles) of water.
The amount of water produced when 19.2 g of B₂H₆ reacted is calculated as follow,
\frac{27.66 g B2H6 produced}{19.2 g of B2H6 will produce} = \frac{36 g of H2O}{x g of water}
Solving for x,                       
              x = (36 g of H₂O ₓ 19.2 g of H₂B₆) / 27.66 g of B₂H₆

              x = 24.98 g of H₂O

Result:
           24.98 g 
of water is produced when 19.2 g of B₂H₆ is reacted with excess of oxygen.
5 0
3 years ago
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