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vesna_86 [32]
3 years ago
5

What is neutron number for calcium ​

Chemistry
1 answer:
notka56 [123]3 years ago
5 0

Answer:

20 neutrons

Explanation:

(not really any just look at a periodic table)

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Look at the picture and answer.
Llana [10]

Answer:

In order to balance the chemical equation, you need to make sure the number of atoms of each element on the reactants side is equal to the number of atoms of each element on the product side. In order make both sides equal, you will need to multiply the number of atoms in each element until both sides are equal.

Hope this helped you.

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Is C3h8 an acid or base
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What is the stable ion of cesium
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Cesium has one valence electron that can be removed from itself resulting to its stable monatomic ion of Cs+ .

Explanation:

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3 years ago
A student viewed the moon through binoculars one week after a new moon.Which image shows the phases of the moon that the student
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2 years ago
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2H2(g)+2NO(g)→2H2O(g)+N2(g) Part A If the concentration of NO changed from 0.100 M to 0.025 M in the first 15 minutes of the rea
andrew11 [14]

Answer:

0.0025 M/min

Explanation:

The rate of a reaction can be calculated for an element, based on its stoichiometric coefficient. For a reaction:

aA + bB = cC + dD , the rate will be

r = -(1/a)x(Δ[A]/Δt) = -(1/b)x(Δ[B]/Δt) = (1/c)x(Δ[C]/Δt) = (1/d)x(Δ[D]/Δt)

Where Δ[X] is the variation of the concentration of the X compound, Δt is the time variation, and the signal of minus in the reagents compounds is because they are disappearing, so Δ[X] will be negative, and r must be positive. So, for the reaction given:

r = -(1/2)x(Δ[NO]/Δt)

r = -(1/2)x( (0.025 - 0.1)/15)

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6 0
3 years ago
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