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Setler [38]
3 years ago
15

Which type of bond is formed with when two Atomic share Park appear ​

Chemistry
1 answer:
Ber [7]3 years ago
3 0

I think it's covalent...? Hope that helps.

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A chemist determined by measurements that 0.030 moles of barium participated in a chemical reaction. Calculate the mass of bariu
schepotkina [342]

Answer: 4.1 g of barium precipitated.

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 6.023\times 10^{23} of particles.

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar Mass}}

Given : moles of barium = 0.030

Molar mass of barium = 137 g/mol

0.030=\frac{x}{137}

x= 4.1 g

Thus there are 4.1 g of barium that precipitated.

3 0
3 years ago
What happens to the rate of a reaction as the reaction progresses?
ZanzabumX [31]

Answer:

D. The rate decreases as reactants are used up.

Explanation:

Initially, the rate increases until the reaction is at equilibrium. At equilibrium, the rate is constant.

As the reaction progresses, the rate decreases to zero when reactants are used up ( for irriversible reactions only )

3 0
3 years ago
Read 2 more answers
When kerosene and oxygen molecules react to form carbon dioxide and water, energy is released. Where do you think the energy com
Nezavi [6.7K]

The energy comes from the breaking of bonds that is present between kerosene molecules.

<h3>How energy released from kerosene?</h3>

When fuels are burned, the chemical energy that is present in kerosene molecules. This energy can be used to generate other form of energy, such as heat, light, motion, or electricity so we can conclude that the energy comes from the breaking of bonds that is present between kerosene molecules.

Learn more about energy here: brainly.com/question/13881533

7 0
2 years ago
Solid A and solid B were dissolved into two separate graduated cycliders
dolphi86 [110]

Answer:

C) The dissolving reaction of A was exothermic, and the dissolving reaction of B was endothermic.

Explanation:

hope this helps :)

6 0
2 years ago
Read 2 more answers
Calculate the number of moles in a liquid sample of a substance that has a molar heat of fusion of 3.811 kJ/mol, if the sample r
Gala2k [10]

Answer:

23.77mole,85.1g/mol

Explanation:

the moles of liquid is 23.77mole which is obtained by divide 90.6kj to 3.811kj/mol and molar mass is obtained from the formula of mole eg mole=mass/molar mass but mass is given and moles is obtained above.

6 0
2 years ago
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