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3 years ago

Help ASAP no links or I’m reporting only answer if you are confident and if you are correct

Chemistry

1 answer:

denpristay [2]3 years ago

8 0

Answer:

It's Brisbane.

Remember latitude and longitude.

27 degrees south is on the second bottom of the map (cities located beneath the equator). Also, 153 degrees east is located on the eastern side of the prime meridian. When pinpointing the location with these coordinates, you will find Brisbane

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Label the following changes as Physical or

Leno4ka [110]

Answer:

Two clear liquids mix and form a

white solid

18.chemical

A pot of water begins to

boil

19.Physical

the rest im usure on.

5 0

3 years ago

Given that sodium chloride is 39.0% sodium by mass, how many grams of sodium chloride are needed to have 100.mg of Na present? G

seraphim [82]

Answer: The mass of sodium chloride solution present is 0.256 grams.

Explanation:

We are given:

39.0 % of sodium in sodium chloride solution

This means that 39.0 grams of sodium is present in 100 grams of sodium chloride solution

Mass of sodium given = 100 mg = 0.1 g (Conversion factor: 1 g = 1000 mg)

Applying unitary method:

If 39 grams of sodium metal is present in 100 grams of sodium chloride solution

So, if 0.1 grams of sodium metal will be present in = $\frac{100}{39}\times 0.1=0.256g$ of sodium chloride solution.

Hence, the mass of sodium chloride solution present is 0.256 grams.

8 0

3 years ago

The combination of all the forces on an object is called?

krek1111 [17]

Answer:

net force

Explanation:

6 0

3 years ago

How many grams of a stock solution that is 92.5 percent H2SO4 by mass would be needed to make 250 grams of a 35.0 percent by mas

IrinaVladis [17]

94.6 g. You must use 94.6 g of 92.5 % H_2SO_4 to make 250 g of 35.0 % H_2SO_4.

We can use a version of the dilution formula

m_1C_1 = m_2C_2

where

m represents the mass and

C represents the percent concentrations

We can rearrange the formula to get

m_2= m_1 × (C_1/C_2)

m_1 = 250 g; C_1 = 35.0 %

m_2 = ?; _____C_2 = 92.5 %

∴ m_2 = 250 g × (35.0 %/92.5 %) = 94.6 g

4 0

4 years ago

Which of the following will form a cation

sdas [7]

D) Calcium

hope this helps :)

3 0

3 years ago