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LUCKY_DIMON [66]
4 years ago
12

An atom of element A has 11 protons. What would the element's atomic number be? Your Answer:

Chemistry
1 answer:
borishaifa [10]4 years ago
7 0

We Know that Number of Protons in an Element's Atom Indicates the Atomic Number of the Element.

Given : The Atom of Element A has 11 Protons

⇒ The Atomic Number of Element A is 11

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g Calculate the theoretical yield (in grams) of your product if you start with 0.50 grams of E-stilbene. The molecular weight of
sattari [20]

Answer:

0.9433g

Explanation:

Theoretical yield is defined as the mass produced assuming all reactant reacts producing the product.

Assuming the reaction is 1:1, we need to find the moles of E-stilbene (Reactant). If all reactant reacts, the moles of E-stilbene = Moles of product.

Using the molar mass of the product we can find the theoretical yield as follows:

<em>Moles E-stilbene:</em>

0.50g * (1mol/180.25g) = 0.00277 moles = Moles Product

<em>Mass Product = Theoretical yield:</em>

0.00277 moles * (340.058g/mol) = 0.9433g

4 0
3 years ago
►<br> 17.2H2 + O2 – 2H20<br> How many moles of oxygen are needed if 8 moles H2 are used?
vesna_86 [32]
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5 0
3 years ago
Need science help (screenshot included)
Dima020 [189]

A. False. If it is high tide in one place on Earth, the place exactly opposite to it will also have a <em>high</em> tide.

The gravitational attraction of the Moon and the inertia of the oceans cause <em>two tidal bulges </em>on opposite sides of the Earth.

B. True. Cassini used flybys of Venus, Earth and Jupiter as slingshots to reach Saturn.

C. True. The whole solar system moves around the galaxy.

D. True. If a planet’s gravity is not strong enough, the molecules in its atmosphere will have enough kinetic energy to escape into space.

E. False. The <em>mass of an object is constant</em>, but its <em>weight changes</em> according to the gravity of the planet.

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F = mg  or weight = mass × gravity

∴ <em>Mass = weight/gravity </em>

6 0
3 years ago
(I will give brainliest, ONLY if its correct!)
ryzh [129]

Answer:

easy

Explanation:

In physics and chemistry, the law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time. This law means that energy can neither be created nor destroyed; rather, it can only be transformed or transferred from one form to another.

7 0
4 years ago
Read 2 more answers
The density of an object is
uysha [10]

Answer:

Density is a measure of mass per unit of volume. Density is a measure of mass per volume. The average density of an object equals its total mass divided by its total volume.

I hope it helps.

Have a great day.

5 0
3 years ago
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