All categories

3 years ago

I am giving 40 points plz answer quick

2 answers:

8 0

4 jet streams

Earth has four primary jet streams: two polar jet streams, near the north and south poles, and two subtropical jet streams closer to the equator.

Alenkasestr [34]3 years ago

6 0

There are 4 jet streams but i’m not sure of the names sorry

You might be interested in

What is the molarity of the nitric acid solution if 20.5 mL of a 0.125 M lithium hydroxide solution are needed to titrate a 25.0

sveticcg [70]

Answer:: We're asked to find the molar concentration of the NaCl solution given some titration data.

Explanation:

3 0

2 years ago

If you have 15g of sodium carbonate, what mass of sodium is present in that sample?

Sati [7]

Answer: 6.75 g

Explanation:

5 0

3 years ago

Aluminum metal reacts with bromine, a red-brown liquid with a noxious odor. The reaction is vigorous and produces aluminum bromi

GuDViN [60]

Answer: The mass of bromine reacted is 160.6 grams.

Explanation:

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ .....(1)

Given mass of aluminium = 18.1 g

Molar mass of aluminium = 27 g/mol

Putting values in equation 1, we get:

$\text{Moles of aluminium}=\frac{18.1g}{27g/mol}=0.670mol$

The chemical equation for the reaction of aluminium and bromide follows:

$2Al+3Br_2\rightarrow 2AlBr_3$

By Stoichiometry of the reaction:

2 moles of aluminium reacts with 3 moles of bromine gas

So, 0.670 moles of aluminium will react with = $\frac{3}{2}\times 0.670=1.005mol$ of bromine gas.

Now, calculating the mass of bromine gas, we use equation 1:

Moles of bromine gas = 1.005 moles

Molar mass of bromine gas = 159.81 g/mol

Putting values in equation 1, we get:

$1.005mol=\frac{\text{Mass of bromine}}{159.81g/mol}\\\\\text{Mass of bromine}=(1.005mol\times 159.81g/mol)=160.6g$

Hence, the mass of bromine reacted is 160.6 grams.

5 0

3 years ago

(b) (i)

Leya [2.2K]

Answer:

an atom or molecule with a net electric charge due to the loss or gain of one or more electrons

8 0

2 years ago

Which use of iron is due to its chemical properties?

Annette [7]

Answer:

changes from liquid to gas at 2,862°C

Explanation:

chemical changes are where you can't go back or change what's made. you can't change it after it's a gas.

4 0

3 years ago

Read 2 more answers