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Nikolay [14]
3 years ago
15

A washing powder contains sodium hydrogencarbonate

Chemistry
1 answer:
Vladimir [108]3 years ago
3 0
False.
Washing soda is sodium carbonate(Na₂CO₃).
Baking soda is sodium hydrogen carbonate(NaHCO₃).
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How do we seperate a mixture of water and sugar
Firlakuza [10]

Answer:

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Explanation:

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3 0
3 years ago
A 12 gram piece of metal is heated to 300 °C from 100 °C with 1120 Joules of energy. What is the specific heat of the metal?
Sergeeva-Olga [200]

Answer:

The specific heat for the metal is 0.466 J/g°C.

Explanation:

Given,

Q = 1120 Joules

mass = 12 grams

T₁ = 100°C

T₂ = 300°C

The specific heat for the metal can be calculated by using the formula

Q = (mass) (ΔT) (Cp)

ΔT = T₂ - T₁ = 300°C  - 100°C   = 200°C

Substituting values,

1120 = (12)(200)(Cp)

Cp = 0.466 J/g°C.

Therefore, specific heat of the metal is 0.466 J/g°C.

7 0
3 years ago
What is the oxidation number of Br in BrCl
Georgia [21]
<span> By definition, </span>oxidation number<span> is the charge left on the given atom when all the bonding pairs (of electrons) are broken, so the oxidation number of Br will be +1</span>
6 0
3 years ago
If 100cm3 of O2 diffused in 4s and 50cm3 of gas Y diffused in 3s. calculate the relative molecular mass of gas X (O=16).
sertanlavr [38]

Answer:

T2/T=√M1√M2

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M2=?

4/2=√M2/√32

=1.3

Explanation:

8 0
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Nana76 [90]
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7 0
3 years ago
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