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3 years ago

HELP HELP ! Which of the following factors does NOT affect surface currents?

2 answers:

6 0

B density

Surface currents are controlled by three factors: global winds, the Coriolis effect, and continental deflections

SCORPION-xisa [38]3 years ago

5 0

Answer:

B. Density

Explanation:

The remaining three affect surface currents.

Continental deflections: The continents that rise above sea level cause the surface currents to change direction.

Coriolis effect: This is the deflection of wind and ocean currents due to the Earth’s rotation.

Winds: These are the wind patterns that circulate the warm and cold air around the globe.

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From the list of substances, identify each as a strong acid, strong base, or neither a strong acid nor a strong baseDrag the app

Veseljchak [2.6K]

Answer:

Answer is in the explanation

Explanation:

All acids that dissociates completely in water are considered strong acids. In the same way, bases that dissociates completely in water are strong bases. All hydroxides made from alkali metals and heavier alkali earth metals are strong bases.

HNO3 dissociates completely in water: STRONG ACID.

HCl dissociates completely in water. STRONG ACID.

NaCl is a salt. Neither a strong acid nor a strong base.

Ca(OH)2. Heavy alkaline earth metal. STRONG BASE.

CH3COOH an acid that doesn't dissociate completely in water. Neither a strong acid nor a strong base.

CH3NH2 is a weak base that doesn't dissociate completely in water. Neither a strong acid nor a strong base.

CH3OH. Methanol is an alcohol. Neither a strong acid nor a strong base.

HF is a weak acid; doesn't dissociate completely in water. Neither a strong acid nor a strong base.

RbOH. Is an hydroxide made from alkali metal. STRONG BASE.

3 0

3 years ago

What conditions would produce the highest pressure?

anzhelika [568]

air that is cooling will cause the highest pressure

Explanation:

This is because heat has to escape a certain area and if the heat can't escape then more and more pressure will build up in a area.

3 0

3 years ago

How many moles is 118 grams of Argon

user100 [1]

Answer:

$\boxed {\boxed {\sf About \ 2.96 \ moles \ of \ Argon}}$

Explanation:

To convert from grams to moles we must use the molar mass, which is found on the Periodic Table.

Argon: 39.9 g/mol

Use the molar mass as a ratio.

$\frac{39.9 \ g \ Ar}{1 \ mol \ Ar}$

Multiply by the given number of grams: 118

$118 \ g \ Ar *\frac{39.9 \ g \ Ar}{1 \ mol \ Ar}$

Flip the fraction so the grams of argon will cancel each other out.

$118 \ g\ Ar * \frac{1 \ mol \ Ar}{39.9 \ g \ Ar}$

$118 * \frac{ 1 \ mol \ Ar}{39.9 \ g \ Ar}$

$\frac {118 \ mol \ Ar }{ 39.9 }$

$2.95739348 \ mol \ Ar$

The original measurement of grams had 3 significant figures, so our answer must have 3 sig figs.

For the number we calculated, that is the hundredth place. The 7 in the thousandth place tells us to round the 5 to a 6.

$2.96 \ mol \ Ar$

There are about 2.96 moles of Argon in 118 grams.

7 0

3 years ago

A piece of metal has a volume of 38 cm and a mass of 277 g calculate the density of the metal

anyanavicka [17]

Density
=mass÷volume
=277÷38
=7.29 g/cm3

6 0

3 years ago

How many grams of sodium nitrate will dissolve in 50 g of water at 20 degrees Celsius?

Vesna [10]

The best method to solve how many grams of sodium nitrate that will be dissolve in water at 20 degrees Celsius is to use solubility table. Based on the solubility table, 88.3 g will dissolve in water in a 100g NaNO3. Therefore, get the percentage and multiply it to 50g. The answer is 44.15g

4 0

3 years ago