6.79 x 10⁶
<h3>Further explanation </h3>
Scientific Notation consists of 2 parts
1. the first part: the first digit followed by the decimal point
2. The second part: the power of 10 (the exponents).which shows the number of digits after the decimal point
To add/subtract, the exponents must be the same and then add/subtract the coefficient
- convert the largest exponent

- subtract the coefficients

Answer:
light bulbs emit photons to produce light
Answer:
AgNO3 + KI → Agl + KNO3. Double-replacement reaction
Explanation:
Based on solubility rules, Silver, Ag produce an insoluble salt in presence of halides (Fluorides F-, Chlorides Cl-, Iodides, I-, and bromides Br-). That means the mixture of AgNO3 (Ag⁺ ions) with KI (I- ions) produce AgI as insoluble salt.
The reaction is:
<h3>AgNO3 + KI → Agl + KNO3</h3><h3 />
And this is a double-replacement reaction where the cations exchange of anion to produce 2 new compounds.
Matter is found every where in the universe and there is never any substance in the universe that is not composed of matter.
<h3>What is matter?</h3>
Matter is anything that has weight and occupy space. We know that matter is present in every part of the universe. Everything in the universe is composed of matter. Matter forms the basics of our study of the universe. Water, food cloths everything all are composed of matter.
The fact that matter inundates the universe has made the study of matter an unavoidable topic. As such, we can not really be able to point something that is of made up of matter. There can be no such thing!
As long as a thing does exist in the material universe, that thing is made up of matter. Look at yourself for example, matter is spread all across your body. The same occurs in the bodies of every other living thing.
The nonliving things are not also left out as they are equally composed of diverse kinds of matter that exists in the universe.
Learn more about matter:brainly.com/question/28487167
#SPJ1