CHEMISTRY HIGH SCHOOL

True or false Diprotic acids lose both hydrogens at the same time

Answers

Answer 1
Answer: Best Answr : Falsee im sureee .

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At the end of 2012, global population was about 7.0 billion people. What mass of glucose in kg would be needed to provide 1200 cal/person/day of nourishment to the global population for one year? Assume that glucose is metabolized entirely to CO₂(g) and H₂O(l) according to the following thermo-chemical equation: C₆H₁₂O₆(s)+6O₂(g)⟶6CO₂(g)+6H₂O(l); ΔH₀ = −2803kJ

What is the correct name for SiCl5?

Answers

Answer:

SbCl5

Antimony pentachloride

Antimony pentachloride is a chemical compound with the formula SbCl5.

- wikipedia

Which value from his calculation most strongly affects the number of significant figures in the answer?

Answers

well, the value that would most affect it is the one with the least sig figs

that would be the one that had the least precise way of measurement

Pick the answer that most likely represents the substances’ relative solubilities in water.(A) CH₃CH₂CH₂CH₃ < CH₃CH₂CH₂OH < HOCH₂CH₂OH
(B) CH₃CH₂CH₂OH < CH₃CH₂CH₂CH₃ < HOCH₂CH₂OH
(C) CH₃CH₂CH₂CH₃ < HOCH₂CH₂OH < CH₃CH₂CH₂OH
(D) HOCH₂CH₂OH < CH₃CH₂CH₂OH < CH₃CH₂CH₂CH₃
(E) HOCH₂CH₂OH < CH₃CH₂CH₂OH < CH₃CH₂CH₂CH₃

Answers

the naswer should be A

Answer:

83

Explanation:

eighty-three

What holds solid sodium together?A. hydrogen bonding
B. metallic bonding
C. ionic bonding
D. dipole forces
E. van der Waals forces (London dispersion forces)

Answers

I'm pretty sure it's Metallic bonding

What is the predicted order of first ionization energies from highest to lowest for lithium (Li), sodium (Na), potassium (K), and rubidium (Rb)?

Answers

Answer;

From highest to lowest is Li>Na>K>Rb.

Explanation;

- Ionization energy is the energy that is required to dislodge or remove an electron from the outer most energy level or energy shell. The first ionization energy is the energy required to remove the first electrons from the outermost energy shell.

- Lithium will have the highest first ionization energy, as the outer electron is closer to the pull of the nucleus and not shielded by full shells. This means that rubidium will be the lowest.

Answer;

From highest to lowest is Li>Na>K>Rb.

Explanation;

- Ionization energy is the energy that is required to dislodge or remove an electron from the outer most energy level or energy shell. The first ionization energy is the energy required to remove the first electrons from the outermost energy shell.

- Lithium will have the highest first ionization energy, as the outer electron is closer to the pull of the nucleus and not shielded by full shells. This means that rubidium will be the lowest.
The first ionization energy is the energy that the atom lost its first electrons. The energy decrease and the atom is more reactive. So from highest to lowest is Li>Na>K>Rb.

Given that there are 1000mL in 1L how many liters are there in 0.0200mL

Answers

Answer:

2×10^-5L

Explanation:

Since there are

1000mL in 1L

0.0200mL will give us

0.0200/1000

= 2×10^-5L

Final answer:

To convert 0.0200mL to liters, we use the conversion factor 1L = 1000mL. The calculation becomes 0.0200mL divided by 1000, which equals to 0.00002L.

Explanation:

The given question asks, how many liters are there in 0.0200mL given the conversion factor that there are 1000mL in 1L. To calculate this, we will use the known conversion factor and divide 0.0200mL by 1000. Here are the steps:

  1. Identify the conversion factor. We know that 1L = 1000mL.
  2. Set up the calculation to convert mL to L. This will be: mL/1000 = L.
  3. Substitute 0.0200mL into the equation: 0.0200mL/1000 = 0.00002L.

So there are 0.00002 liters in 0.0200mL.

Learn more about Conversion here:

brainly.com/question/33720372

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