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3 years ago

Use the drop-down menu to complete the sentence.

Chemistry

2 answers:

Paha777 [63]3 years ago

5 0

Answer:

It's called carbon dioxide.

Explanation:

$CO_{2}$ consists of 1 carbon atom bonding with two oxygen atoms.

NeTakaya3 years ago

3 0

Answer:

compound :)

Explanation:

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An 100g box have a temperature of 22 C. What temperature must a 200g box be kept at in order for both to have the same amount of

Elis [28]

Answer:

the answer is 1 sir BC i t is BC it is BC its 2

4 0

3 years ago

A 18.00 g g milk chocolate bar is found to contain 11.00 g g of sugar.1. How many milligrams of sugar does the milk chocolate ba

horrorfan [7]

Answer:

1. 1.100x10⁴mg

2. 2444mg

Explanation:

1. The 18.00g milk chocolate bar contain 11.00g of sugar. In miligrams:

11.00g * (1000mg / 1g) = 1.100x10⁴mg

2. If a bar of 18.00g contain 11.00g of sugar, a bar of 4.000g will contain:}

4.000g bar * (11.00g / 18.00g) = 2.444g of sugar.

In miligrams:

2.444g * (1000mg / 1g) = 2444mg

6 0

3 years ago

If air is a fluid, why do we not include the buoyant force caused by the displacement of air by the objects in this experiment?

uysha [10]

Archimedes' principle allows us to find that the reasons why the thrust is not written when a body is in the air is:

The thrust of air is about 800 times less than the thrust of a fluid

In general the other forces (weight, tension) are much greater than thrust

Archimedes' principle establishes that the thrust is equal to the weight of the dislodged liquid (fluid)

B = ρ g V

Where B is the thrust, ρ and V the density and volume of the fluid, respectively, g the acceleration due to gravity.

In the attachment you have a diagram of a system in equilibrium in air and water, we can see that in the two cases for a system in equilibrium

B -W = 0

B = W

Let's find the value of the thrust in each case and compare

$B_{air} = \rho_{air} g V_{air}$

$B_{water} = \rho_{water} \ g V_{water}$

Used the density

$\rho_{air} = \ 1.26 \ kg/m^3 \\\rho_{water} = 997 kg/m^3$

$B_{air} = 1.26 \ g \ V_{air}\\B_{water} = 997 \ g \ V_{water}$

Suppose that the volume of the two bodies is the same

$B_{water} = 792 B_{air}$ r

We can see that the thrust in air or other gas is about 800 times less than the thrust in liquids. This is the reason that in many problems the thrust is not written when the body is in the air.

In conclusion, using Archimedes' principle, we find that the reason why the healed thrust is not written for a body is in the air is:

The thrust of air is about 800 times less than the thrust of a fluid

In general the other forces (weight, tension) are much greater than thrust

Learn more about Archimedes' principle here:

brainly.com/question/787619

5 0

2 years ago

Which of the following is a surface event that takes place during the rock cycle? Erosion Melting Metamorphosis Tectonic process

pshichka [43]

<span>Which of the following is a surface event that takes place during the rock cycle? Erosion</span>

6 0

3 years ago

Read 2 more answers

What particle decay is this? 210 83 Bi→210 84 Po

sesenic [268]

Answer:

Beta emission

Explanation:

In beta emission, a neutron is converted into a proton thereby emitting an electron and a neutrino. A neutrino is a particle that serves to balance the spins.

When a nucleus undergoes beta emission, the mass number of the parent and daughter nuclei remain the same while the atomic number of the daughter nucleus is greater than that of its parent by one unit.

Hence, in beta emission, the daughter nucleus is found one pace to the right of the parent in the periodic table.

3 0

3 years ago