Explain why a beryllium atom is electrically neutral

Answers

Answer 1

Answer:

The positive energy protons and negative electrons balance out.

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When a liquid is cooled, the kinetic energy if the particles A. Decrease B. Increases C. Remains the same. The force of attraction between the particles A. Decrease B. Increases C. Remains the same , the space between the particles A. Decrease B. Increases C. Remains the same

Answers

Answer:

(A.) Kinetic energy decreases
(B.) Force of attraction increases
(C.) Space between particles remains the same

Explanation:

Kinetic energy is the energy in motion. Cooling if liquid would cause decreased temperature and hence slow down the oscillation of the particles.

Likewise, increased heat reduces the force of attraction between said particles, which allowed for their free movement. So the cooling would have opposite effect.

Finally, the space between the particles would remain the same as it was originally, as their force of attraction is increased in the cooling process, they would take the form they are held in.

I hope this was helpful and concise?

HELPPP| WILL MARK BRAINLEST Rosalinda is thirsty and wants to make a glass of lemonade as quickly as possible. She needs to add sugar to lemon juice and water to make the lemonade. Which type of sugar should she use?
Group of answer choices

granulated sugar with fine grains

sugar formed into cubes

raw sugar with coarse grains

sugar from rock candy

Answers

Answer:

she use granulated sugar with fine grains as it is easily dissolved so she used in lemonade.

Which statement is true about an empirical formula?1. It is the true ratio of atoms in a formula unit.
2. It is the simplest ratio of atoms in a formula unit.
3. It represents the true molecular mass of a chemical formula.
4. It represents the highest ratio of coefficients in a chemical formula.

Answers

The statement that is true about an empirical formula is it is the simplest ratio of atoms in a formula unit. The answer is number 2. The rest of the statements do not answer the question above.

Answer:

2. It is the simplest ratio of atoms in a formula unit.

Explanation:

The empirical formula refers to how to provide the minimum proportion in which chemical elements combine into one substance. Sometimes it may happen that the minimum formula is equal to the molecular formula of the compound; However, this is not always true. In short, the empirical formula refers to the simplest ratio of atoms in a unit of formula.

For example, the empirical or minimal formula of water is H2O, indicating that there is a 2: 1 ratio between the elements that make up water molecules. And, coincidentally, this is also the molecular formula of water.

What happens to a water bottle in a freezer and why

Answers

the water well begin to freeze and turn into soild. why? because the temperature of the the freezer is getting the water bottle cold so when that cold temperature hits that that bottle which has liquid in it so you should know that when liquid is into cold air it well so be soild so when you put the water bottle in the freezer it will be soild.
and also remember gas - liquid - soild gas change to liquid by hot air and liuid change to soild by clod air
hoped i helped

What is the ratio of NO:N2 in the given reaction4NH3+6NO->5N2+6H2O?
A) 5:6
B) 6:5
C) 4:5
D) 5:4

Answers

The ratio of NO:N2 in the given reaction is4NH3+6NO->5N2+6H2O

Since you have six moles of NO and 5 moles of N2, the ratio of NO:N2 is 6:5. The answer is letter B.

Given the balanced equation representing a reaction:C3H8(g) + 5O2(g)==>3CO2(g) + 4H2O(g)
What is the total number of moles of O2(g) required for the complete combustion of 1.5 moles of C3H8(g)?
(1) 0.30 mol (3) 4.5 mol
(2) 1.5 mol (4) 7.5 mol

Answers

To calculate the atoms of an element in a given molecule, we need to multiply stoichiometry by the number that is written on the foot of that element. The moles of oxygen required is 7.5 mol.

What is stoichiometry?

Stoichiometry is a part of chemistry that help us in making relationship between reactant and product from quantitative aspects.

The balanced equation is

C $_3$ H $_8$ (g) + 5O $_2$ (g) $\rightarrow$ 3CO $_2$ (g) + 4H $_2$ O(g)

The mole ratio of C $_3$ H $_8$ to oxygen is 1:5, means 1 mole of C $_3$ H $_8$ will react with 5 mole of oxygen. So, if we take 1.5 moles of C $_3$ H $_8$ then the amount of oxygen that will be produced will be 5 times the moles of

C $_3$ H $_8$ . The moles of oxygen required to react with 1.5 moles of C $_3$ H $_8$ = 5× 1.5mol. Moles of oxygen required to react with 1.5 moles of C $_3$ H $_8$ =7.5 mol.

Therefore the moles of oxygen required is 7.5 mol.

To know more about stoichiometry, here:

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The answer is (4) 7.5 mol. The consuming of reactants has the same ratio as the balanced equation. So the ratio of consuming C3H8 and O2 is equal to 1:5. So when 1.5 mol of C3H8 consumed, 1.5*5=7.5 mol O2 consumed.

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Which formula represents a nonpolar molecule containing polar covalent bonds?(1) H2O (3) NH3(2) CCl4 (4) H2

Which gas occupies the highest volume at STP?0.02 mol of O20.1 mol of Cl21 mol of N22 mol of H2

Can you answer nine and ten

Which of the following two elements will likely form a covalent bond? N and O K and Cl Li and F Na and Sr