CHEMISTRY HIGH SCHOOL

A die is shaped like which solid?

Answers

Answer 1
Answer:

According to the forces of attraction , a die is shaped is like cube which shows that  it is a solid.

What are forces of attraction?

Forces of attraction  is a force by which atoms in a molecule  combine. it is basically an attractive force in nature.  It can act between an ion  and an atom as well.It varies for different  states  of matter that is solids, liquids and gases.

The forces of attraction are maximum in solids as  the molecules present in solid are tightly held while it is minimum in gases  as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.

The physical properties such as melting point, boiling point, density  are all dependent on forces of attraction which exists in the substances.

Learn more about forces of attraction,here:

brainly.com/question/23841038

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Answer 2
Answer: Dice are commonly shaped as cubes so that all sides can be equal thus not skewing the results towards a certain  outcome.

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3Pb(s) + 2H3PO4(l) →

Answers

Answer:

3Pb(s) + 2H3PO4(l) →H3PO4 + Pb3(PO4)2 H2

Explanation:

I hope I helped you :P

Based on the equation below, which of the following statements best describes what should be observed as the reaction takes place?Zn(s) + 2HCl(aq) = ZnCl2(aq) + H2(g)

Select one or more:
a. Chlorine forming a solid precipitate
b. Bubbles forming from hydrogen gas production
c. Solid zinc dissolving
d. Bubbles forming from chlorine gas production

Answers

The answer is. C, solid zinc dissolving.

Daniel claims that the product of two square roots of integers is always rational. His reasoning is given in the example below. Type either "correct" or "incorrect" next to each part of Daniel's reasoning below to indicate whether or not there is a flaw. A square root can be rational. The product of two rational numbers is always rational. The product of two integers is always a perfect square.

Answers

incorrect....................

Which state of matter exists at the extremely high temperatures found on stars?

Answers

Long before when there were still 3 known states of matter to man which were the solid, the liquid, and the gas, the state of matter that existed at the extremely high temperatures found on stars is the gas state. After some time and with the help of scientific aid in this endeavor, a new state of matter was added to the original list which is the plasma. Plasma is like gas since it doesn't have any definite shape or volume. The thing is that its electrons are stripped off from their positions and form a sea of it making the matter conducive to electricity.

What is the mass in grams of 0.94 moles of sodium bicarbonate. NaHCO3?​

Answers

Mass of a substance = Moles of a substance × molar mass of a substance

We have 0.94 moles of NaHCO3. The molar mass of NaHCO3 is the sum of the atomic masses of the elements comprising NaHCO3, which is approximately 84.007 g/mol.

The mass of 0.94 moles of sodium bicarbonate is therefore (0.94 moles NaHCO3)(84.007 g NaHCO3/mol NaHCO3) = 78.97 ≈ 79 grams of sodium bicarbonate.

If there are 4.5 x 1020 atoms of Silver are present, then how many moles of Silver are there? Question 1 Answer a. 0.081 moles b. 12.4 moles c. 0.0007 moles d. 1,338 moles

Answers

Answer: C

Explanation:

This is basic stoichiometry

4.5 X 10^20 Atoms x (1 mole/ 6.02 X 10^23 atoms) = 7.48 X 10^-4 moles Ag

so the answer would be C.
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