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3 years ago

What year did Canada switch to the metric system?

Chemistry

2 answers:

Hatshy [7]3 years ago

6 0

Answer:

1970

Explanation:

1970, Canada gradually began to convert from an imperial to a metric system of measurement

AnnyKZ [126]3 years ago

5 0

1970, Canada gradually began to convert from an imperial to a metric system of measurements.

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Which household items would be considered a base? Select all that apply. *

mrs_skeptik [129]

Answer:

Drain Cleaner, soap, bleach

i think thats it, sorry if i got something wrong

6 0

3 years ago

How many electrons are present in an uncharged atom with its 1s, 2s, 2p, 3s, 3p and 4s subshells filled and with five electrons

marshall27 [118]

Explanation

The orbital quantum number of an atomic subshell determines the maximum number of electrons it can contain. For example:

Each $s$ orbital $(l = 0)$ holds up to $4 \; l + 2 = 2$ electrons
Each $p$ orbital $(l = 1)$ holds up to $4 \; l + 2 = 6$ electrons
Each $d$ orbital $(l = 2)$ holds up to $4 \; l + 2 = 10$ electrons

The atom in question here contains four fully-occupied $s$ orbitals, two fully-occupied $p$ orbitals along with $5$ electrons in a partially-occupied $d$ orbital. It thus contains

$4 \times 2 + 2 \times 6 + 5 = 25 \; \text{electrons}$

5 0

3 years ago

What is the Iupac name for CH3CHIH3

frozen [14]

Answer:

Acetone | CH3COCH3 - PubChem

Explanation:

8 0

3 years ago

Calculate the mass of Octane needed to release 6.20 mol Co2

n200080 [17]

The combustion reaction of octane is as follow,

C₈H₁₈ + 25/2 O₂ → 8 CO₂ + 9 H₂O

According to balance equation,

8 moles of CO₂ are released when = 114.23 g (1 mole) Octane is reacted

So,

6.20 moles of CO₂ will release when = X g of Octane is reacted

Solving for X,
X = (114.23 g × 6.20 mol) ÷ 8 mol

X = 88.52 g of Octane
Result:
88.52 g of Octane is needed to release 6.20 mol CO₂.

8 0

3 years ago

How do weak intermolecular bond strengths affect the melting and boiling point of a substance?

kobusy [5.1K]

Answer:

both melting point and boiling points are lower

this is because it becomes easier to break those bonds (they’re actually intermolecular forces) between the atoms sinc they’re weak, and thus require less energy to break.

3 0

3 years ago