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3 years ago

Ions of an element (elements with different charges) contain different numbers of what

Chemistry

1 answer:

Vadim26 [7]3 years ago

7 0

Answer:

an ion is an element that has different numbers of protons and electrons

Explanation:

An ion is positive when it has more protons than electrons and negative when it has more electrons than ions.

(Hope this was helpful!) :)

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Which of the following undergoes change during a chemical reaction? A. atomic masses of elements in reactants B. element identit

Virty [35]

Chemical bonds between atoms in reactants undergo change during a chemical reaction.

The substance (or substances) initially involved in a chemical reaction are called reactants or reagents. Chemical reactions are usually characterized by a chemical change, and they yield one or more products, which usually have properties different from the reactants.

The correct answer between all the choices given is the last choice or letter D. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

8 0

3 years ago

How much energy is required to raise the temperature of 10.6 grams of gaseous neon from

Alona [7]

Answer:

Approximately $1.95 \times 10^{2}\; \rm J$ .

Explanation:

Look up the specific heat of gaseous neon:

$c = 1.03 \; \rm J \cdot g^{-1} \cdot K^{-1}$ .

Calculate the required temperature change:

$\Delta T = (37.9 - 20.0)\; \rm K = 17.9\; \rm K$ .

Let $m$ denote the mass of a sample of specific heat $C$ . Energy required to raise the temperature of this sample by $\Delta T$ :

$Q = c \cdot m \cdot \Delta T$ .

For the neon gas in this question:

$c = 1.03\; \rm J \cdot g^{-1}\cdot K^{-1}$ .
$m = 10.6\; \rm g$ .
$\Delta T = (37.9 - 20.0)\; \rm K = 17.9\; \rm K$ .

Calculate the energy associated with this temperature change:

$\begin{aligned}Q &= c \cdot m \cdot \Delta T \\ &= 1.03\; \rm J \cdot g^{-1}\cdot K^{-1} \times 10.6\; \rm g \times 17.9\; \rm K \\ &\approx 1.95 \times 10^{2}\; \rm J\end{aligned}$ .

3 0

3 years ago

The atomic mass of seven atoms of antimony is ?

son4ous [18]

Answer:

Percent composition by element

Element Symbol Atomic Mass

Antimony Sb 121.760

Explanation:

6 0

3 years ago

According to Newton's second law of motion, the acceleration of an object equals the net force acting on the object divided by t

astraxan [27]

Lets write the formula, then start to determine!

Force = mass times acceleration

Therefore,

acceleration = force divided by mass

Answer:- A) mass

8 0

3 years ago

Read 2 more answers

Which of the following statements is true? A) If Q < K, it means the forward reaction will proceed to form more products. B)

GuDViN [60]

Hey there!:

If Q = K, it means the reaction is at equilibrium.

The correct statments are as follows:

A. If Q < K, it means the forward reaction will proceed to form more products.

B. If Q > K, it means the backward reaction will proceed to form more reactants.

The statement C is true.

Hope this helps!

4 0

3 years ago