1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
hoa [83]
3 years ago
8

Help I need to get this done quickly it’s a quiz

Chemistry
1 answer:
Bad White [126]3 years ago
8 0
The answer would be
1B
2B
3A
You might be interested in
Iron atoms have been detected in the sun's outer atmosphere, some with many of their electrons stripped away. what is the net el
shtirl [24]
For a proton, the charge is represented by +e
For an electron, the charge is represented by -e
The charge of an electron [e] is equal to the - 1.602 * 10^-19 Coulombs
For an ionized atom, the net charge is equal to the sum of charges in the proton and the electron in that atom.
From the question, we are told that, the iron atom has 26 protons and 7 electrons.
The net charge Q = 26 [ +e] + 7 [- e] = +19 e
+19 e = + 19 [1.602 * 10^-19 C] = + 3.04 * 10^-18 C.


3 0
3 years ago
What are the useful of carbonate​
Shalnov [3]

Answer:

Carbonates are widely used in industry, such as in iron smelting, as a raw material for Portland cement and lime manufacture, in the composition of ceramic glazes, and more.

7 0
3 years ago
How does changing the volume or temperature of a gas affect the pressure of that gas?
Masja [62]

Answer:

When a gas occupies a smaller volume, it exerts a higher pressure; when it occupies a larger volume, it exerts a lower pressure (assuming the amount of gas and the temperature do not change). Since P and V are inversely proportional, a graph of 1/P vs. V is linear.

Explanation:

<h2><u><em>This is all I know.</em></u></h2><h2><u><em>Hope it helps~</em></u></h2><h2><u><em>Good luck with your work!!~</em></u></h2>
6 0
3 years ago
When a mixture of oxygen and hydrogen is ignited in a test tube, the reaction shown occurs. Hydrogen + Oxygen → Water + Energy S
grin007 [14]

Answer:

products

Explanation:

In chemistry, chemical reactions is the combination of two or more substances to yield other substances. The substances that react is called REACTANTS while the substances formed after the reaction is called PRODUCTS.

According to this question, a mixture of oxygen and hydrogen is ignited in a test tube as follows:

Hydrogen + Oxygen → Water + Energy

In this reaction, the substances being combined (usually found on the left side of the equation) are hydrogen and oxygen. Hence, oxygen and hydrogen are REACTANTS. Also, the substances produced as a result of the reaction is water (H2O). The PRODUCTS of the reaction is WATER.

5 0
3 years ago
Read 2 more answers
Who can do my chemistry? It's due tonight, please! It’s about solubility interactive
DanielleElmas [232]

Answer:

I can, i love chemistry

Explanation:

8 0
3 years ago
Other questions:
  • A substance made up of a combination of two or more elements held together by chemical bonds that can not be separated by physic
    14·1 answer
  • Justify which individual offspring would more likely survive, a fish reproduced from external
    15·1 answer
  • Bromine has two isotopes 79Br and 81Br, whose masses (78.9183 and 80.9163 amu) and abundances (50.69% and 49.31%, respectively)
    5·1 answer
  • Identify each element in Na2SO4, sodium sulfate, a drying agent.
    13·2 answers
  • When 20.0 grams of an unknown compound are dissolved in 500. grams of benzene, the freezing point of the resulting solution is 3
    6·1 answer
  • A. Give the name of the element represented
    6·1 answer
  • How does sublimation differ from condensation?
    12·2 answers
  • Determine the number of carbon atoms in 1.00 kg of carbon dioxide.
    7·1 answer
  • what happen when Nacl solution reacts with AgNo3solution .name the two types of reactions to which does it belong​
    15·1 answer
  • You went to the market one day. write about an incident that happened there​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!