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According to the diagram above, when the north end of the Earth’s axis is tilted toward the sun, explain the suns effect on the North America.

A. North America will experience more indirect rays and shorter days

B. North America will experience more indirect rays and longer days.

C. North America will experience more direct rays and shorter days

D. North America will experience more direct rays and longer days.

Answer:

picture is not there.....

Answer:

I am guessing it is B. Non-metal, metals, metalloids

Answer:

C. seems to be the answer as ionic comlopunds have high melting points becuase of the anion cation bond which is not seen in covalent bonds that share electrons in polar arragnements.

Explanation:

Answer:

I think is B hopefully is

Answer:

1.2kg or 1200kg

Explanation:

F = ma

net force = 1,800

m = ??

a = 1.5m/s^2

m = F/a = 1,800/1.5 or 1,800 x 10/1.5 x 10

= 18,000/15 = 1,200kg or 1.2kg

Thanks

Answer: 5.0 M NaCl

Explanation:

A concentrated solution is one which has more amount of solute in it.

A dilute solution is one which has less amount of solute in it.

Molarity is defined as the number of moles of solute present per liter of the solution.

0.5 M NaCl will have 0.5 moles of NaCl in 1 L of the solution, 0.005 M NaCl has 0.005 moles of NaCl in 1 L of the solution, 0.05 M NaCl has 0.05 moles of NaCl in 1 L and 5.0 M NaCl has 5 moles of NaCl in 1 L.

Thus 5.0 M NaCl will be most concentrated.

Answer:

4.938×10^24 molecules

Explanation:

a mole is 6.023×10^23

(8.2)×(6.023×10^23)=4.938×10^24

Answer:

the mass of the glycerine needed in the given solution is  23.92 g

Explanation:

Given;

molarity of the solution (C₃H₈O₃), C = 2.60 M

Volume of the solution, V = 100 mL = 100 x 10⁻³ L = 0.1 M

The molarity of a solution is given as follows;

[tex]Molarity = \frac{amount \ of \ solute \ (moles)}{volume \ of \ solution \ (L)} \\\\amount \ of \ solute \ (moles) = Molarity \ \times volume \ of \ solution \ (L)\\\\amount \ of \ solute \ (moles) = 2.6 \times 0.1 \\\\amount \ of \ solute \ (moles) = 0.26 \ mole[/tex]

The molecular mass of the given solution;

molecular mass = (12 x 3) + (8 x 1) + (16 x 3)

molecular mass = 92 g/mol

The mass of the glycerine needed in the given solution is calculated as follows;

reacting mass = amount of solute (moles)   x   molecular mass (g/mol)

reacting mass = 0.26 x 92

reacting mass = 23.92 g

Therefore, the mass of the glycerine needed in the given solution is  23.92 g

Answer:

3 three

Explanation:

potassium (K), manganese (Mn), and oxygen (O).

Answer:

3 different elements (7 in total as there are 4 oxygens (The answer is either one of these))

Explanation:

Answer:

Some early research suggests that subliminal messages may influence food- and diet-related thoughts and behaviors. However, other research has found that subliminal messages with weight loss cues have no effect.

Explanation:

Answer:

1:1

Explanation:

Based on Avogadro's law, the volume of an ideal gas is directly proportional to the moles (Or number of molecules) presents of this gas under constant temperature.

The volume of the gas is independent to the nature of the gas

Using this law, we can change the state as:

X number of molecules of CO₂ in X number of molecules of CH₄ (Because are occupying the same volume). That means the ratio of molecules is:

Answer:

2.25 mol H₂

Explanation:

To calculate mol of H₂ ensure that the equation is balanced. Then use the equation and dimensional analysis to convert the given 1.5 mol Al to mol of H₂.

Answer:

D)

Explanation:

CH4 + 2O2 = CO2 + 2H2O

1 (L CO2)= 32.5(L CO2)

1 (CH4) = 32.5 (L CH4)

Answer:

3

Explanation:

The plates are moving away from each other

Answer:

63.58 g O

Explanation:

To calculate the mass of O atoms, the number of moles of O atoms are needed and can be calculated as follows:

n (no. of moles) = nA ÷ 6.02 × 10^23

n = 2.393 x 10^24 ÷ 6.02 × 10^23

n = 0.398 × 10^ (24-23)

n = 0.398 × 10^1

n = 3.98moles.

To calculate the mass of Oxygen, we use the following formula:

moles = mass/molar mass

Molar mass of O = 16.

3.98 = m/16

m = 3.98 × 16

m = 63.68grams of Oxygen.

Answer:

Solution given:

[tex]1 mole \:of O=6.023×10^{23} atoms[/tex]

1 mole of O =16g

we have

[tex] 6.023×10^{23} atoms\: of O=16g[/tex]

now

[tex] 2.393 × 10^{24} atoms\: of \:O\\=16/6.023×10^{23}*2.393 x 10^{24}g\\=63.57g[/tex]

63.57g is a required mass of O.

Answer:

C

Explanation:

plz mark brainliest

Gibbs free energy predict spontaneity if G < 0, the reaction is spontaneous and the correct statement is option C.

Gibbs free energy is a quantity that is used to measure the maximum amount of work done in a thermodynamic system when the temperature and pressure are kept constant.

Gibbs free energy is denoted by the symbol ‘G’. Its value is usually expressed in Joules or Kilojoules.

Gibbs free energy can be defined as the maximum amount of work that can be extracted from a closed system.

Gibbs free energy to determine the spontaneity of a process.

Therefore, Gibbs free energy predict spontaneity if G < 0, the reaction is spontaneous and the correct statement is option C.

Learn more about Gibbs free energy, here:

https://brainly.com/question/20358734

#SPJ5

Answer:

If you already have a solenoid, there is nothing wrong with running CO2 with the lights only. It will save CO2, and prevent excessive CO2 levels at night. Some think the CO2 should be up to max levels when the lights go on.

Explanation:

Answer:

1. Make Her Smile with You. Your smile is something which can turn the tables for you, if you possess a nice smile then it is no doubt a plus point for you or flirt with her.

2. She tilts her head while looking at you.

She constantly 'fixes' her hair, makeup, or clothing.

She returns your physical touches.

She stares or looks over at you a lot.

She blushes around you.

Explanation:

i am NOT gonna read all of that

Answer:

sulfuric acid

Explanation:

The conjugate acid of HSO4 -1 is H2 SO4. Adding one hydrogen ion to the hydrogen sulfate ion generates the conjugate acid. Its name is sulfuric acid.

Answer:

a

Explanation:

Answer:

Thymus. This gland makes white blood cells called T-lymphocytes that fight infection and are crucial as a child's immune system develops

Answer:

Molarity of HCl = 1.6M

Explanation:

The chemical reaction equation is;

HCl(aq) + NaOH(aq) —> NaCl(aq) + H2O(l)

Now, molarity = number of moles/volume

Thus, for NaOH, we have;

Number of moles = molarity × volume = 2M × (20/1000) L

Number of moles = 0.04 moles

Using the coefficients in the chemical equation above, we can find the corresponding number of moles for HCl.

Number of moles of HCl = 0.04 moles NaOH × (1 mole of HCl/1 mole of HCl) = 0.04 moles of HCl

Thus;

Molarity of HCl = 0.04/(25/1000)

Molarity of HCl = 1.6M

Answer:

17.03052 mutiple by 2

34.06104grams

Answer:did h find the answer

Explanation:

6.73 L

This one requires the combined gas law.

P1V1/T1 = P2V2/T2

P1 = 150 kPa = 1.48 atm

V1 = 5 L

T1 = 300 K

P2 = 1 atm

V2 = This is what we’re solving for.

T2 = 273 K

P2 and T2 are based on the conditions of STP. I also changed P1 to atm to keep the units consistent.

Solve the equation for V2:

V2 = P1V1T2 / T1P2

V2 = (1.48 atm)(5 L)(273 K) / (300 K)(1 atm) = 6.73 L

Answer:

Get SNS

Explanation:

Answer:

Quantitative data can be counted, measured, and expressed using numbers.  Qualitative data is descriptive and conceptual.  Qualitative data can be categorized based on traits and characteristics.

Explanation:

Quantitative analysis involves looking at the hard data, the actual numbers. Qualitative analysis is less tangible. It concerns subjective characteristics and opinions – things that cannot be expressed as a number.

Answer:

this should help

Explanation: