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Mashcka [7]
3 years ago
11

Mass is measured based on a unit called theA. GramB. LiterC.meter D. Cubic units

Chemistry
1 answer:
xxMikexx [17]3 years ago
3 0

Answer:

it's A. Grams

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What happens when gasoline is used to power a vehicle?
olga55 [171]
Well cars need gas to run on if the car does not have gas it wont run and you cant get to places you need to go only if you have gas.

5 0
3 years ago
You leave for school late when you are pulled over by a police officer for speeding. He clocks you at 52 mi/hr . What is your sp
yawa3891 [41]

Answer:

Explanation:

The maximum speed limit in Prince Edward Island

unless otherwise posted is 80 kilometres per hour

(km/h). The basic speed limits are:

• 40 km/h (25 mph) in most municipalities

(municipalities may establish the maximum

speed limit within their boundaries);

• 50 km/h (30 mph) in urban areas;

• 60 km/h (40 mph) in school zones designated as

such by the erection of signs at the entrance and

the exit, between 8 a.m. and 5 p.m. when

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• 80 km/h (50 mph) on most provincial highways;

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3 0
4 years ago
using information in titles of appendices b and c, calculate the minimum grams of propane, C3H8 (g), that must be combusted to p
Lubov Fominskaja [6]

<u>Given:</u>

Mass of ice = mass of water = 5.50 kg = 5500 g

Temperature of ice = -20 C

Temperature of water = 75 C

<u>To determine:</u>

Mass of propane required

<u>Explanation:</u>

Heat required to change from ice to water under the specified conditions is:-

q = q(-20 C to 0 C) + q(fusion) + q (0 C to 75 C)

  = m*c(ice)*ΔT(ice) + m*ΔHfusion + m*c(water)*ΔT(water)

  = 5500[2.10(0-(-20)) + 334 + 4.18(75-0)] = 3792 kJ

The enthalpy change for the combustion of propane is -2220 kJ/mol

Therefore, the number of moles of propane corresponding to the required energy of 3792 kJ = 1 mole * 3792 kJ/2220 kJ = 1.708 moles of propane

Molar mass of propane = 44 g/mol

Mass of propane required = 1.708 moles * 44 g/mol = 75.15 g

Ans: 75.15 grams of propane must be combusted.



4 0
4 years ago
What is a solution that has the capacity to hold additional solute at a given temperature called? A. Unsaturated 
slava [35]
A solution that has the capacity to hold additional solute at a certain temperature is called Under-saturated.
4 0
3 years ago
Read 2 more answers
Based on the number of valence electrons indicated by its location in the periodic table, which element's behavior would you pre
katrin [286]

Answer:

D

Explanation:

Elements in the same group (vertical columns) have the same number of valence electrons. These elements behave similarly because they will either give up or take the same number of electrons to fill their valence shell. Since potassium has 1 valence electron, it will most likely give up one electron. Out of all of the answer options, the only element that is in the same group as potassium is francium.

8 0
4 years ago
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