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jekas [21]
3 years ago
15

How to solve 20.0 mL/ 5.7 g with significant figures and including units

Chemistry
1 answer:
Nutka1998 [239]3 years ago
7 0

Question

How to solve 20.0 mL/ 5.7 g with significant figures and including units?

Answer:

p = 0.25 g/cm3

Hope this Helps!!

xXxAnimexXx

The formula for density is the mass of an object divided by its volume. In equation form, that's d = m/v , where d is the density, m is the mass and v is the volume of the object. The standard units are kg/m³.

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Store bought cake mix is usually left to bake at 350°F in an oven, what would happen to the time it
lesya692 [45]

Answer:

It will reduce

Explanation:

The time it will take to bake the cake will reduce when the temperature is increased by an additional 20°F .

Temperature change has a considerable effect on reaction rates since temperature is directly proportional to the average kinetic energy of reacting particles.

Generally reaction rate varies as temperature directly.

Therefore, the baking time will reduce as temperature increases.

4 0
3 years ago
White lead is a pigment used by artists for centuries
MAVERICK [17]

Answer:

true

Explanation:

pigment contains chlorine which gives color

3 0
2 years ago
Why does an increase in reaction temperature generally increase the reaction rate?
Gennadij [26K]
Increasing reaction temperature increased the kinetic energy in the system. In fact, the <em>measurement of</em> <em>temperature </em>indirectly relates the relative amount of kinetic energy in a system. 
An increase in kinetic energy results in more rapid and forceful molecular collisions, thereby increasing the rate of molecular interactions (and in a fixed-volume system, the pressure increases as well!). Hence, the reaction can occur more quickly.
4 0
4 years ago
A certain electrolyte solution contains 1 gram of salt for every 8 grams of sugar and every 200 grams of water. If the sugar to
12345 [234]

Answer:

The resulting solution contains approximately 666 g of water.

Explanation:

In the initial solution we have:

1g salt : 8g sugar : 200g water

This means that the ratios are:

\frac{salt}{sugar}  = \frac{1}{8} \\\\\frac{sugar}{water} = \frac{8}{200} =\frac{1}{25}

In the final solution we have:

5g salt: xg sugar: yg water

The new ratios are:

\frac{salt}{sugar} = \frac{3}{8} \\\\\frac{sugar}{water} = \frac{1}{50}

Now we can calculate the amount of sugar in the final solution:

\frac{salt}{sugar}  = \frac{5}{x} =\frac{3}{8} \\\\X = 13.333 g

Finally, we calculate the amount of water:

\frac{sugar}{water} = \frac{13.333}{y} = \frac{1}{50} \\y = 666.667 g

4 0
3 years ago
Hydroxide oh3 can react as a brønsted-lowry base (and remove a proton), or as a lewis base (and attack a carbon atom). what orga
polet [3.4K]

Solution: A Bronsted-Lowry Base is defined as a solution that accept proton/s. hydroxide ion, OH^{-} is a Bronted-Lowry base because it have one negative charge and it can accept 1 proton in the form of H^{+} ion.

Lewis base is defined as an electron rich species that can donate its electron pair to electron deficient species. Here, due to negative charge, hydroxide ion is electron rich and can attack on electron deficient carbon atom or carbocation.

The organic product formed by the reaction of hydroxide ion OH^{-} and carbocation CH_{3}^{+} will be as follows:

OH^{-}+CH_{3}^{+}\rightarrow CH_{3}OH

Thus, the organic product formed will be alcohol.


4 0
3 years ago
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