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3 years ago

Jf,fyu,eudyj,yudu.kjm,fj

Chemistry

2 answers:

dalvyx [7]3 years ago

8 0

Answer:

Yes that is correct

Explanation:

Si si yes yes

worty [1.4K]3 years ago

4 0

Answer:

Si, si, mi amigo

Explanation:

yes, yes, my friend

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How can we identify that the absorption of heat has occurred?

loris [4]

Answer:

rise in temperature and the effect it has on our global weather patterns

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2 years ago

8. Balance the following nuclear equations: ^65/30Ca -> ^65/29Sc +_______

a_sh-v [17]

Explanation:

⁶⁵₃₀Ca → ⁶⁵₂₉Sc + ⁿₓH

The reaction above is nuclear reaction.

In a nuclear reaction, the mass number and atomic number must be conserved.

The mass number is the superscript before the atom

Atomic number is the subscript before the atom

Conserving mass number:

65 = 65 + n

n = 0

conserving atomic number:

30 = 29 + x

x = 1

The unknown atom is a positron i.e a positively charged electron: ⁰₁e

⁶⁵₃₀Ca → ⁶⁵₂₉Sc + ⁰₁e

learn more:

Transmutation brainly.com/question/3433940

#learnwithBrainly

3 0

3 years ago

When an atom gains or loses electrons and has and does not have an equal number of

aksik [14]

Answer:

it is called an ion

Explanation:

if it gains electrons then it is an anion

if it gains protons it is a cation

typically non metals are anions and metals are cations

4 0

2 years ago

The amount of inertia an object has depends on its speed true or false

olya-2409 [2.1K]

False - the amount of inertia depends on the MASS of the object; the heavier it is, the slower it is, and the lighter it is, the faster it is.

5 0

3 years ago

3) Calculate the percent by mass of 3.55 g NaCl dissolved in 88 g water.

kotykmax [81]

Answer:

The percent by mass of 3.55 g NaCl dissolved in 88 g water is 3.88%

Explanation:

When a solute dissolves in a solvent, the mass of the resulting solution is a sum of the mass of the solute and the solvent.

A percentage is a way of expressing a quantity as a fraction of 100. In this case, the percentage by mass of a solution is the number of grams of solute per 100 grams of solution and can be represented mathematically as:

$Percent by mass=\frac{mass of solute}{mass of solution} *100$

In this way it allows to precisely establish the concentration of solutions and express them in terms of percentages.

In this case:

mass of solute: 3.55 g
mass of solution: 3.55 g + 88 g= 91.55 g

Replacing:

$Percentbymass=\frac{3.55}{91.55}*100$

Percent by mass= 3.88%

The percent by mass of 3.55 g NaCl dissolved in 88 g water is 3.88%

5 0

3 years ago