Answer:
Explanation:
The question on the test was "
How many hydrogen atoms are present in one molecule of ammonium acetate, NH4C2H3O2?
Question options:
3
4 / this is not the answer I got it wrong and 8 is not an option for choice.
7
11
CH 4 (g)+2O 2 (g) CO 2 (g)+2H 2 O(g)
Answer: combustion
Explanation:
Combustion reactions can be identified by looking at the reactants and the products.
Usually, the reactants will be a hydrocarbon and oxygen. And the products will be CO2 and H2O
The answer is: elements in the same group of periodic system have similar properties.
Dmitri Mendeleev published a periodic table of the chemical elements in 1869.
Mendeleev noted gaps in the table and predicted then undiscovered elements existed eka-silicon (germanium) and eka-boron (scandium).
For example, germanium discovered in 1886 and it had proporties as Mendeleev predicted.
There are 118 unique substances (elements) arranged on an amazing chart that reveals their hidden secrets to anyone who knows how to read it.
The first chemical element is hydrogen (atomic number is 1) and the last is oganesson (atomic number is 118).
Elements are scheduled in periodic table, ordered by their atomic number.
Answer:
I don't know
Explanation:
mixture of iron powder and sulphur heated it glows because sulphur and iron are more reactive metals that they shine and sulphur can react with water produce fire it's write
Answer:
decomposition
Explanation:
did the test and got it correct