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3 years ago

What symbol is used to separate the products from each other or the reactants from each other in a chemical reaction?

Chemistry

1 answer:

Tasya [4]3 years ago

7 0

Answer:

a plus sign: +

Explanation:

a plus sign is used to separate one reactant or product from another

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Which is a third stage of cellular respiration

xxTIMURxx [149]

There are 3 major stages in cellular respiration, glycolysis, Krebs cycle, and the electron transport chain.

6 0

3 years ago

If you have a volume of 55 L and a density of 2 kg/L, what is the mass?

ASHA 777 [7]

Answer:

110kg

Explanation:

Density = mass / volume

Mass = density x volume

Given

Density = 2kg/l

Volume = 55l

Mass = 2kg/l x 55l

Mass = 110 kg

I hope this was helpful, Please mark as brainliest

3 0

4 years ago

10.0 g of gaseous ammonia and 6.50 g of oxygen gas are introduced into a previously evacuated 5.50 L vessel. If the ammonia and

Shalnov [3]

Answer:

The density is 3g/L

Explanation:

The reaction that occurs in the vessel is:

4 NH₃ + 5 O₂ → 4 NO + 6 H₂O

10,0g of NH₃ are:

$10,0g * \frac{1mol}{17,031g} = 0,587 moles$

6,50 g of O₂ are:

$6,50g * \frac{1mol}{32g} = 0,203 moles$

For a complete reaction of O₂ there are necessaries:

$0,203 mol * \frac{4molNH_{3}}{5molO_{2}}= 0,163 moles of NH_{3}$

O₂ is limiting reactant. The excess moles of NH₃ are:

0,587 - 0,163 = 0,424 moles of NH₃

These moles are:

$0,424mol * \frac{17,031g}{1mol} =$ 7,22g of NH₃

Knowing O₂ is limiting reactant, mass of NO and H₂O are:

$0,203molO_{2}*\frac{4molNO}{5molO_{2}}*\frac{30,01g}{1molNO} =$ 4,87g of NO

$0,203molO_{2}*\frac{6molH_{2}O}{5molO_{2}}*\frac{18,02g}{1molH_{2}O} =$ 4,39g of H₂O

The total mass is: 7,22g + 4,87g + 4,39g = 16,48g ≡ 16,5g

-The same mass add in the first. By matter conservation law-

As vessel volume is 5,50L, density is:

16,5g/5,50L = 3g/L

I hope it helps!

7 0

4 years ago

The atom is one of the basic units of matter. Which part of the atom mostly determines the size of the atom?

dedylja [7]

Answer:

Atomic size is the distance from the nucleus to the valence shell where the valence electrons are located. The separation that occurs because electrons have the same charge. The number of protons in the nucleus. The core electrons in an atom interfere with the attraction of the nucleus for the outermost electrons.

Explanation:

6 0

3 years ago

Read 2 more answers

A key step in balancing chemical equations is correctly identifying the formulas of the reactants and products. For example, con

icang [17]

Answer:

CaO + H2O= Ca(OH)2

Explanation:

The rule of balancing chemical equation states that the total number of atoms an element on the right hand side, must equal the total number of atoms of the same element on the left hand side of the reaction equation. This rule is satisfied in the equation above. For example, there are two oxygen atoms at the RHS and two at the LHS.

6 0

3 years ago